/* ═══════════════════════════════════════════════════════════════
   IoT Web Configurator — Design System & Styles
   ═══════════════════════════════════════════════════════════════ */

/*
 * v1.5.1.1: 로컬 폰트 self-host (Inter 5 weight + JetBrains Mono 2 weight).
 * LAN 전용 IoT — 외부 CDN 의존 0. Latin subset .woff2 (각 ~20-40 KB).
 */
@font-face {
    font-family: 'Inter'; font-style: normal; font-weight: 300;
    font-display: swap; src: url('../fonts/Inter-Light.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter'; font-style: normal; font-weight: 400;
    font-display: swap; src: url('../fonts/Inter-Regular.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter'; font-style: normal; font-weight: 500;
    font-display: swap; src: url('../fonts/Inter-Medium.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter'; font-style: normal; font-weight: 600;
    font-display: swap; src: url('../fonts/Inter-SemiBold.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter'; font-style: normal; font-weight: 700;
    font-display: swap; src: url('../fonts/Inter-Bold.woff2') format('woff2');
}
@font-face {
    font-family: 'JetBrains Mono'; font-style: normal; font-weight: 400;
    font-display: swap; src: url('../fonts/JetBrainsMono-Regular.woff2') format('woff2');
}
@font-face {
    font-family: 'JetBrains Mono'; font-style: normal; font-weight: 500;
    font-display: swap; src: url('../fonts/JetBrainsMono-Medium.woff2') format('woff2');
}

/* ─── CSS Custom Properties ─────────────────────────────────── */
:root {
  /* Colors — Dark Mode (Default) */
  --bg-body: #0F172A;
  --bg-sidebar: rgba(15, 23, 42, 0.85);
  --bg-card: #1E293B;
  --bg-card-hover: #263548;
  --bg-input: #0F172A;
  --bg-input-focus: #1a2744;
  --bg-table-header: #162032;
  --bg-table-row-hover: rgba(99, 102, 241, 0.08);

  --border-default: #334155;
  --border-focus: #6366F1;
  --border-error: #EF4444;
  --border-card: rgba(99, 102, 241, 0.15);
  /* v1.7.1 Task 7: seal the legacy bare `--border` alias to the canonical
     `--border-default` token. Naming convention is `--{category}-{variant}`;
     bare aliases like this exist only for backward compatibility and must
     always point at a defined token (audited by scripts/audit_css_tokens.py).
     Because --border-default is redefined per theme, --border stays theme-aware. */
  --border: var(--border-default);

  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-inverse: #0F172A;

  --accent: #6366F1;
  --accent-hover: #818CF8;
  --accent-subtle: rgba(99, 102, 241, 0.15);
  --accent-gradient: linear-gradient(135deg, #6366F1 0%, #818CF8 100%);

  --success: #10B981;
  --success-bg: rgba(16, 185, 129, 0.15);
  --error: #EF4444;
  --error-bg: rgba(239, 68, 68, 0.15);
  --warning: #F59E0B;
  --warning-bg: rgba(245, 158, 11, 0.15);
  --info: #3B82F6;
  --info-bg: rgba(59, 130, 246, 0.15);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 16px;
  --font-size-lg: 20px;
  --font-size-xl: 24px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 50%;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.35s ease;

  /* Layout */
  --sidebar-width: 240px;
  --sidebar-collapsed: 64px;
  --header-height: 60px;
}

/* ─── Light Mode ────────────────────────────────────────────── */
[data-theme="light"] {
  --bg-body: #F1F5F9;
  --bg-sidebar: rgba(255, 255, 255, 0.9);
  --bg-card: #FFFFFF;
  --bg-card-hover: #F8FAFC;
  --bg-input: #F8FAFC;
  --bg-input-focus: #FFFFFF;
  --bg-table-header: #F1F5F9;
  --bg-table-row-hover: rgba(99, 102, 241, 0.06);

  --border-default: #E2E8F0;
  --border-card: rgba(99, 102, 241, 0.1);

  --text-primary: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;

  --accent: #4F46E5;
  --accent-hover: #6366F1;
  --accent-gradient: linear-gradient(135deg, #4F46E5 0%, #6366F1 100%);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.08);
}

/* ─── Reset & Base ──────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background: var(--bg-body);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  transition: background var(--transition-base), color var(--transition-base);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
}

/* ─── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════════════
   SIDEBAR
   ═══════════════════════════════════════════════════════════════ */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-card);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition-base);
}

.sidebar__header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-card);
}

.sidebar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.sidebar__logo-icon {
  font-size: 24px;
}

.sidebar__logo-text {
  font-weight: 700;
  font-size: var(--font-size-md);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Nav */
.sidebar__nav {
  flex: 1;
  padding: var(--space-md) var(--space-sm);
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-md);
  margin-bottom: 2px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
  text-decoration: none;
}

.nav-item:hover {
  background: var(--accent-subtle);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--accent-subtle);
  color: var(--accent);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: var(--accent-gradient);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.nav-item.disabled {
  opacity: 0.35;
  pointer-events: none;
}

.nav-item--error::after {
    content: '';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--error);
    border-radius: var(--radius-full);
    box-shadow: 0 0 6px var(--error-bg);
}

.nav-item__icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
}

/* Footer */
.sidebar__footer {
  padding: var(--space-md) var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-card);
}

.sidebar__actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.sidebar__version {
  text-align: center;
  margin-top: var(--space-md);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.sidebar__version-name {
  display: block;
  font-weight: 500;
}

.sidebar__version-num {
  display: block;
  opacity: 0.7;
}

/* ═══════════════════════════════════════════════════════════════
   v1.8.0 — Two Faces (User vs Advanced/Debug view)
   ═══════════════════════════════════════════════════════════════ */

/* Advanced/Debug 보기 토글 (사이드바 footer). 보안 경계 아님 — 표시 스위치. */
.view-toggle {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: var(--space-sm);
  align-items: center;
  margin-top: var(--space-md);
  cursor: pointer;
  user-select: none;
}
.view-toggle__input {
  grid-row: 1 / span 2;
  margin: 0;
  cursor: pointer;
}
.view-toggle__label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary, var(--text-muted));
  font-weight: 500;
}
.view-toggle__hint {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  line-height: 1.3;
}

/* 모드 종속 표시 규칙 (User=기본 / body.advanced=고급).
   v1.8.1 (review): User 전용 콘텐츠는 전용 CSS 클래스가 아니라 JS isAdvanced() 분기로
   게이팅한다(home.js networkApplyRows / pending.js 섹션). 따라서 advanced-only 만 CSS 로
   구동한다(소비자 없던 user-only 규칙은 제거). JS 가 body.advanced 를 토글(app.js reflectAdvancedClass). */
.advanced-only { display: none !important; }
body.advanced .advanced-only { display: revert !important; }

/* ═══════════════════════════════════════════════════════════════
   MOBILE HEADER
   ═══════════════════════════════════════════════════════════════ */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-sidebar);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-card);
  padding: 0 var(--space-md);
  align-items: center;
  justify-content: space-between;
  z-index: 90;
}

.mobile-header__menu {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  padding: var(--space-sm);
}

.mobile-header__title {
  font-weight: 600;
  font-size: var(--font-size-md);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

.sidebar-overlay.show {
  display: block;
}

/* ═══════════════════════════════════════════════════════════════
   MAIN CONTENT
   ═══════════════════════════════════════════════════════════════ */
.main {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: var(--space-xl) var(--space-2xl);
  min-height: 100vh;
  transition: margin-left var(--transition-base);
}

.page-container {
  max-width: 900px;
  margin: 0 auto;
  animation: fadeIn var(--transition-base) ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Page Header */
.page-header {
  margin-bottom: var(--space-xl);
}

.page-header__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.page-header__desc {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
}

/* ═══════════════════════════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════════════════════════ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(99, 102, 241, 0.25);
}

.card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-card);
}

.card__title {
  font-size: var(--font-size-md);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.card__title-icon {
  font-size: 18px;
}

/* ═══════════════════════════════════════════════════════════════
   FORM ELEMENTS
   ═══════════════════════════════════════════════════════════════ */
.form-group {
  margin-bottom: var(--space-md);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.form-row--2col {
  grid-template-columns: 1fr 1fr;
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input,
.form-select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus {
  background: var(--bg-input-focus);
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

.form-input:disabled,
.form-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: var(--bg-card);
}

.form-input.error {
  border-color: var(--border-error);
  box-shadow: 0 0 0 3px var(--error-bg);
}

.form-input--mono {
  font-family: var(--font-mono);
  font-size: 13px;
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--error);
  margin-top: var(--space-xs);
}

/* Inline field validation error (generated by validator.js) */
.field-error {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--error);
  margin-top: var(--space-xs);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* IP Octet Input Group */
.ip-input-group {
  display: flex;
  align-items: center;
  gap: 2px;
  max-width: 280px;
  margin: 0 auto;
}

.ip-input-group .ip-octet {
  width: 56px;
  text-align: center;
  padding: 6px 4px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.ip-input-group .ip-dot {
  color: var(--text-muted);
  font-weight: 700;
  font-size: 16px;
  user-select: none;
  flex-shrink: 0;
}

/* Checkbox Toggle (AI/DI ports) */
.checkbox-toggle {
  appearance: none;
  width: 36px;
  height: 20px;
  background: var(--border-default);
  border-radius: var(--radius-full);
  position: relative;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  outline: none;
  flex-shrink: 0;
}

.checkbox-toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: white;
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast);
}

.checkbox-toggle:checked {
  background: var(--accent);
}

.checkbox-toggle:checked::after {
  transform: translateX(16px);
}

/* v1.5.3.1: Sensor I/O port row + analog/digital input visual layout */
.form-row--ports {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.port-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--bg-input, #0F172A);
  border: 1px solid var(--border-default);
  border-radius: 6px;
}

.port-row__label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  flex: 1;
}

.port-row__name {
  font-weight: 600;
  color: var(--text-primary);
}

.port-row__hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-left: 0.25rem;
}

.card__desc {
  margin: 0.25rem 0 0.75rem;
  color: var(--text-secondary);
  font-size: 13px;
}

/* Error shake animation */
@keyframes shake {

  0%,
  100% {
    transform: translateX(0);
  }

  20%,
  60% {
    transform: translateX(-4px);
  }

  40%,
  80% {
    transform: translateX(4px);
  }
}

.form-input--error {
  border-color: var(--error) !important;
  box-shadow: 0 0 0 3px var(--error-bg) !important;
  animation: shake 0.4s ease;
}

/* Password wrapper */
.input-password {
  position: relative;
}

.input-password .form-input {
  padding-right: 40px;
}

.input-password__toggle {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
}

.input-password__toggle:hover {
  color: var(--text-primary);
}

/* Radio Group */
.radio-group {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  font-size: var(--font-size-base);
  color: var(--text-primary);
}

.radio-label input[type="radio"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-default);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
}

.radio-label input[type="radio"]:checked {
  border-color: var(--accent);
}

.radio-label input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: var(--radius-full);
}

/* Toggle */
.toggle-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
}

.toggle-group__label {
  font-size: var(--font-size-base);
  color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  outline: none;
  white-space: nowrap;
}

/* v1.11.2: explicit disabled styling — greys the button and suppresses hover
   lift / clicks (e.g. the upload-step NEXT button while a firmware upload is in
   flight). Don't rely on browser UA defaults for the grey-out. */
.btn:disabled,
.btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none;
  transform: none;
}

.btn--primary {
  background: var(--accent-gradient);
  color: white;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.btn--primary:hover {
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn--outline:hover {
  background: var(--accent-subtle);
}

.btn--danger {
  background: transparent;
  color: var(--error);
  border-color: var(--error);
}

.btn--danger:hover {
  background: var(--error-bg);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 6px 10px;
}

.btn--ghost:hover {
  color: var(--error);
  background: var(--error-bg);
}

.btn--sm {
  padding: 6px 14px;
  font-size: var(--font-size-sm);
}

.btn--full {
  width: 100%;
}

.btn--icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: var(--radius-full);
  font-size: 16px;
}

/* ═══════════════════════════════════════════════════════════════
   DATA TABLE (Protocol Mappings)
   ═══════════════════════════════════════════════════════════════ */
.data-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.data-table th {
  background: var(--bg-table-header);
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-default);
  white-space: nowrap;
}

.data-table td {
  padding: 6px 8px;
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
  vertical-align: middle;
}

.data-table tr:hover td {
  background: var(--bg-table-row-hover);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table .form-input,
.data-table .form-select {
  padding: 6px 10px;
  font-size: 13px;
  font-family: var(--font-mono);
  border-radius: var(--radius-sm);
}

.data-table .col-action {
  width: 40px;
  text-align: center;
}

/* ═══════════════════════════════════════════════════════════════
   GRID LAYOUT
   ═══════════════════════════════════════════════════════════════ */
.grid-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.grid-4col {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

/* ═══════════════════════════════════════════════════════════════
   LOADING
   ═══════════════════════════════════════════════════════════════ */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  gap: var(--space-md);
  color: var(--text-secondary);
}

.loading__spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-default);
  border-top-color: var(--accent);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ═══════════════════════════════════════════════════════════════
   TOAST
   ═══════════════════════════════════════════════════════════════ */
.toast-container {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  min-width: 300px;
  animation: toastIn var(--transition-base) ease;
  font-size: var(--font-size-base);
}

.toast--success {
  border-left: 3px solid var(--success);
}

.toast--error {
  border-left: 3px solid var(--error);
}

.toast--warning {
  border-left: 3px solid var(--warning);
}

.toast--info {
  border-left: 3px solid var(--info);
}

.toast__icon {
  font-size: 18px;
}

.toast__message {
  flex: 1;
}

.toast__close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  padding: 2px;
}

/* v1.7.1 Task 5: actionable toast CTA (Save → Apply needed). */
.toast__action {
  background: none;
  border: 1px solid currentColor;
  border-radius: var(--radius-sm, 4px);
  color: inherit;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  white-space: nowrap;
}
.toast__action:hover { text-decoration: underline; }

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(40px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.toast.removing {
  animation: toastOut var(--transition-fast) ease forwards;
}

@keyframes toastOut {
  to {
    opacity: 0;
    transform: translateX(40px);
  }
}

/* ═══════════════════════════════════════════════════════════════
   THEME TOGGLE
   ═══════════════════════════════════════════════════════════════ */
.theme-toggle {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  box-shadow: var(--shadow-glow);
  transform: scale(1.1);
}

/* ═══════════════════════════════════════════════════════════════
   INFO BANNER
   ═══════════════════════════════════════════════════════════════ */
.info-banner {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--info-bg);
  border: 1px solid rgba(59, 130, 246, 0.2);
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-sm);
  color: var(--info);
}

.info-banner--warning {
  background: var(--warning-bg);
  border-color: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .grid-2col {
    grid-template-columns: 1fr;
  }

  .grid-4col {
    grid-template-columns: repeat(2, 1fr);
  }

  .main {
    padding: var(--space-lg);
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .mobile-header {
    display: flex;
  }

  .main {
    margin-left: 0;
    padding: var(--space-md);
    padding-top: calc(var(--header-height) + var(--space-md));
  }

  .grid-4col {
    grid-template-columns: 1fr 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-row--2col {
    grid-template-columns: 1fr;
  }

  .card {
    padding: var(--space-md);
  }

  .toast-container {
    left: var(--space-md);
    right: var(--space-md);
  }

  .toast {
    min-width: auto;
  }

  .theme-toggle {
    bottom: var(--space-md);
    right: var(--space-md);
  }
}

/* ═══════════════════════════════════════════════════════════════
   UTILITIES
   ═══════════════════════════════════════════════════════════════ */
.mt-sm {
  margin-top: var(--space-sm);
}

.mt-md {
  margin-top: var(--space-md);
}

.mt-lg {
  margin-top: var(--space-lg);
}

.mb-md {
  margin-bottom: var(--space-md);
}

.text-mono {
  font-family: var(--font-mono);
}

.text-muted {
  color: var(--text-muted);
}

.text-center {
  text-align: center;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ═══════════════════════════════════════════════════════════════
   INFO & COLLAPSIBLE CARDS
   ═══════════════════════════════════════════════════════════════ */
.card--info {
  background: var(--info-bg);
  border-color: rgba(59, 130, 246, 0.2);
  color: var(--info);
}

.card--info p {
  font-size: var(--font-size-sm);
}

.card--collapsible .card__header--clickable {
  cursor: pointer;
  user-select: none;
}

.card--collapsible .card__header--clickable:hover {
  opacity: 0.8;
}

.card__collapse-icon {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

/* ═══════════════════════════════════════════════════════════════
   LEGEND GRID
   ═══════════════════════════════════════════════════════════════ */
.legend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.legend-grid strong {
  font-family: var(--font-mono);
  color: var(--text-primary);
}

/* ═══════════════════════════════════════════════════════════════
   SMALL SELECT (for tables)
   ═══════════════════════════════════════════════════════════════ */
.form-select--sm {
  padding: 6px 10px;
  font-size: 13px;
  font-family: var(--font-mono);
  border-radius: var(--radius-sm);
}

/* ═══════════════════════════════════════════════════════════════
   FIELD VALIDATION ERROR (border/box-shadow + shake in base styles)
   ═══════════════════════════════════════════════════════════════ */

.field-error {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--error);
  margin-top: var(--space-xs);
}

/* ═══════════════════════════════════════════════════════════════
   LOG MANAGEMENT
   ═══════════════════════════════════════════════════════════════ */

/* Section divider between settings and file list */
.log-section-divider {
  border: none;
  border-top: 1px solid var(--border-default);
  margin: var(--space-lg) 0;
}

/* Action bar above log files table */
.log-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-table-header);
  border: 1px solid var(--border-default);
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  gap: var(--space-md);
}

.log-action-bar__left {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.log-action-bar__summary {
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

/* Merge action bar with table below */
.log-action-bar + .data-table-wrapper {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

/* Log type badges */
.log-type-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.log-type-badge--log {
  background: var(--info-bg);
  color: var(--info);
}

.log-type-badge--archive {
  background: var(--success-bg);
  color: var(--success);
}

/* Placeholder states (loading, empty, error) */
.log-files-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-xl) var(--space-md);
  border: 1px dashed var(--border-default);
  border-radius: var(--radius-md);
  text-align: center;
}

.log-files-placeholder--error {
  border-color: var(--error);
  color: var(--error);
}

/* Log files table checkbox styling */
.log-files-table input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--accent);
}

/* ═══════════════════════════════════════════════════════════════
   LOG STATS DASHBOARD
   ═══════════════════════════════════════════════════════════════ */

.log-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.log-stat-card {
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
}

.log-stat-card__value {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.log-stat-card__label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.log-stat-card--success {
  border-color: rgba(16, 185, 129, 0.3);
}

.log-stat-card--success .log-stat-card__value {
  color: var(--success);
}

.log-stat-card--info {
  border-color: rgba(59, 130, 246, 0.3);
}

.log-stat-card--info .log-stat-card__value {
  color: var(--info);
}

.log-stat-card--warning {
  border-color: rgba(245, 158, 11, 0.3);
}

.log-stat-card--warning .log-stat-card__value {
  color: var(--warning);
}

@media (max-width: 1024px) {
  .log-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .log-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ─── Landing Dashboard ─────────────────────────────────────── */
.sidebar__logo-img { height: 26px; width: auto; display: block; }
.sidebar__logo-cap {
    /* v1.4.6.10 ②: --color-text-muted 미정의 → --text-muted (light/dark 양쪽 정의됨) */
    font-size: 9px; letter-spacing: .16em; color: var(--text-muted, #7B8AA0);
    font-family: 'JetBrains Mono', monospace; margin-top: 3px;
}
[data-theme="dark"] .sidebar__logo-img { filter: brightness(0) invert(1); }

/* v1.10: Dashboard V2 — 3-column grid.
   Column layout: [Network large | right compact col | right compact col]
   Row 0 (auto): dash-header-summary spans all 3 columns.
   Row 1 (large): dash-card--network spans rows 1-2 in column 1;
                  dpworldapp / GNSS / Equipment stack in columns 2-3.
   Row 2 (bottom): Server Uplink / System / Current Issues span all 3 cols each.
*/
.page-container--dashboard {
    max-width: 1100px;
}
.dash-grid {
    display: grid;
    grid-template-columns: minmax(360px, 2fr) minmax(0, 1fr) minmax(0, 1fr);
    grid-template-rows: auto;
    gap: var(--space-md, 1rem);
    min-width: 0;
    margin-bottom: var(--space-md, 1rem);
}
@media (max-width: 720px) { .dash-grid { grid-template-columns: 1fr; } }

/* v1.4.6.10 ②: --color-* 변수가 :root에 정의되지 않아 항상 하드코딩 다크 fallback이 적용,
   라이트 모드에서도 카드만 검게 남던 버그. 실제 디자인 토큰(--bg-card / --text-primary /
   --text-secondary / --bg-input / --border-default)으로 통일하면 라이트/다크 양쪽 정상. */
.dash-card {
    min-width: 0;
    background: var(--bg-card, #1A2436);
    border: 1px solid var(--border-default, #29354A);
    border-radius: 8px; padding: 1rem 1.1rem;
}
.dash-card__title {
    font-size: .95rem; font-weight: 600; margin: 0 0 .8rem;
    color: var(--text-primary, #F1F5F9);
}
.dash-card__title--sr {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}
.dash-card__sub {
    color: var(--text-muted, #64748B);
    font-size: 12px;
    margin: -.35rem 0 .85rem;
}
.dash-panel--wide { grid-column: 1 / -1; }
/* v1.10: Health Overview / KPI / Operating Mode panel classes removed —
   renderHealthOverview + renderOperatingMode are not called by renderCards()
   in the V2 redesign. Dead CSS removed to keep the stylesheet lean. */
.dash-path__state,
.dash-issue__detail {
    color: var(--text-muted, #64748B);
    font-size: 12px;
}
.dash-path {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .7rem;
}
.dash-path__node {
    min-width: 0;
    border: 1px solid var(--border-default, #29354A);
    border-radius: 6px;
    padding: .75rem;
    background: var(--bg-input, #0E1726);
}
.dash-path__node--ok { border-color: rgba(16, 185, 129, .35); background: var(--success-bg); }
.dash-path__node--warn { border-color: rgba(245, 158, 11, .4); background: var(--warning-bg); }
.dash-path__node--error { border-color: rgba(239, 68, 68, .45); background: var(--error-bg); }
.dash-path__state {
    display: flex;
    align-items: center;
    gap: .45rem;
    margin-bottom: .55rem;
}
.dash-path__label {
    color: var(--text-primary, #E2E8F0);
    font-size: 13px;
    font-weight: 600;
}
.dash-path__value {
    color: var(--text-secondary, #94A3B8);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    margin-top: .2rem;
    overflow-wrap: anywhere;
}
.dash-issues__list {
    display: grid;
    gap: .4rem;
}
.dash-issues {
    padding-block: .8rem;
}
.dash-issues .dash-card__title {
    margin-bottom: .55rem;
}
.dash-issue {
    display: flex;
    align-items: flex-start;
    gap: .6rem;
    border: 1px solid var(--border-default, #29354A);
    border-radius: 6px;
    background: var(--bg-input, #0E1726);
    padding: .5rem .65rem;
}
.dash-issue--ok {
    border-color: rgba(16, 185, 129, .26);
    background: var(--bg-input, #0E1726);
    box-shadow: inset 3px 0 0 var(--success, #10B981);
}
.dash-issue--warn {
    border-color: rgba(245, 158, 11, .3);
    background: var(--bg-input, #0E1726);
    box-shadow: inset 3px 0 0 var(--warning, #F59E0B);
}
.dash-issue--error {
    border-color: rgba(239, 68, 68, .32);
    background: var(--bg-input, #0E1726);
    box-shadow: inset 3px 0 0 var(--error, #EF4444);
}
.dash-issue__body { min-width: 0; }
.dash-issue__text {
    color: var(--text-primary, #E2E8F0);
    font-size: 12.5px;
    font-weight: 600;
    overflow-wrap: anywhere;
}
.dash-issue__detail {
    margin-top: .15rem;
    overflow-wrap: anywhere;
}
.dash-issue__action {
    color: var(--text-secondary, #94A3B8);
    font-size: 12px;
    margin-top: .25rem;
    overflow-wrap: anywhere;
}
/* v1.7.1 Task 2: issue action rendered as a clickable deep-link. */
button.dash-issue__action--link {
    display: inline-flex;
    align-items: center;
    gap: .25rem;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    color: var(--accent, #6366F1);
    cursor: pointer;
    font: inherit;
    font-size: 12px;
}
button.dash-issue__action--link:hover { text-decoration: underline; }
/* v1.7.1 Task 1: stale / connection-lost banner (zombie dashboard guard). */
.dash-stale {
    display: flex;
    align-items: flex-start;
    gap: .6rem;
    border-color: var(--warning);
    background: var(--warning-bg, rgba(245, 158, 11, .12));
}
.dash-stale__title { font-weight: 600; }
.dash-stale__detail {
    margin-top: .15rem;
    color: var(--text-secondary, #94A3B8);
    font-size: 13px;
    overflow-wrap: anywhere;
}
/* When stale, dim the live cards so the operator does not trust them. */
.dash-grid[data-dash-stale="true"] .dash-card:not(.dash-stale) { opacity: .6; }
/* ─── Dashboard V2 — Network card layout (Task 7) ─────────── */
/* dash-card--network: large left card spans rows 1..N of the right column
   (dpworldapp / GNSS / Equipment stack beside it). */
.dash-card--network {
    grid-column: 1;
    grid-row: span 2;
}
/* v1.10 V2 responsive: mobile collapses to single column.
   Port diagram collapses to vertical interface list (net-ports wraps to column).
   Order: header → Network → Current Issues → dpworldapp → GNSS → Equipment →
          Server Uplink → System (controlled by order cards appear in renderCards). */
@media (max-width: 720px) {
    .dash-panel--wide { grid-column: auto; }
    .dash-path { grid-template-columns: 1fr; }
    .dash-card--network { grid-column: auto; grid-row: auto; }
    .net-ports { grid-template-columns: 1fr; gap: .4rem; }
    .net-port {
        flex-direction: row;
        justify-content: flex-start;
        gap: .5rem;
        min-height: 52px;
        padding: .45rem .6rem;
    }
    .net-port__icon { width: 30px; height: 24px; }
    .net-port__signal { margin-left: auto; }
    .net-iface-row {
        grid-template-columns: 1fr;
        align-items: start;
    }
    .net-iface-row__item {
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: .4rem;
    }
    .net-iface-row__value {
        white-space: normal;
        overflow: visible;
        overflow-wrap: anywhere;
        text-align: left;
    }
}
.dash-row {
    display: flex; align-items: baseline; gap: .5rem;
    margin-bottom: .5rem; font-size: 13px;
}
.dash-row__lbl { color: var(--text-secondary, #94A3B8); min-width: 96px; }
.dash-row__val { color: var(--text-primary, #E2E8F0); font-family: 'JetBrains Mono', monospace; }
.dash-row__val--dim { color: var(--text-muted, #64748B); font-size: 12px; }
.dash-row--section {
    color: var(--text-muted, #888);
    font-size: 0.85em;
    border-top: 1px solid var(--border-default, #2a2a2a);
    padding-top: 6px;
    margin-top: 6px;
    display: block;
}

/* v1.5.5.2: per-interface 세부 row (IP/MAC 표시).
   header row 다음에 들여쓰기 + 작은 텍스트로 보조 정보 표시.
   ── eth0   Down
       IP    192.168.1.1
       MAC   92:d4:78:cd:59:7b
*/
.dash-status-hero {
    display: flex;
    align-items: center;
    gap: .65rem;
    min-width: 0;
    margin-bottom: .65rem;
    padding: .55rem .65rem;
    border: 1px solid rgba(148, 163, 184, .16);
    border-radius: 6px;
    background: rgba(15, 23, 42, .18);
}
.dash-status-hero__icon {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    color: var(--text-muted, #64748B);
    background: var(--bg-input, #0E1726);
    border: 1px solid var(--border-default, #29354A);
}
.dash-status-hero__copy {
    display: flex;
    flex-direction: column;
    min-width: 0;
    line-height: 1.25;
}
.dash-status-hero__eyebrow {
    color: var(--text-muted, #64748B);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}
.dash-status-hero__value {
    color: var(--text-primary, #E2E8F0);
    font-size: 14px;
    font-weight: 700;
    overflow-wrap: anywhere;
}
.dash-status-hero__detail {
    color: var(--text-secondary, #94A3B8);
    font-size: 12px;
    overflow-wrap: anywhere;
}
.dash-status-hero--ok { border-color: rgba(148, 163, 184, .18); box-shadow: inset 3px 0 0 var(--success, #10B981); }
.dash-status-hero--warn { border-color: rgba(148, 163, 184, .18); box-shadow: inset 3px 0 0 var(--warning, #F59E0B); }
.dash-status-hero--error { border-color: rgba(148, 163, 184, .18); box-shadow: inset 3px 0 0 var(--error, #EF4444); }
.dash-status-hero__icon--ok { color: var(--success, #10B981); border-color: rgba(16, 185, 129, .32); }
.dash-status-hero__icon--warn { color: var(--warning, #F59E0B); border-color: rgba(245, 158, 11, .35); }
.dash-status-hero__icon--error { color: var(--error, #EF4444); border-color: rgba(239, 68, 68, .38); }

.dash-row--header { margin-bottom: 2px; }
.dash-row--sub {
    margin-bottom: 2px; padding-left: 20px; font-size: 12px;
    color: var(--text-muted);
}
.dash-row__lbl--sub { min-width: 36px; color: var(--text-muted); }

/* v1.5.4.3 U11 fix: 9→10px (WCAG 1.4.11 non-text contrast 가시성 향상) + CSS 변수.
   하드코딩 hex를 테마 토큰 --success/--warning/--error/--border-default로 교체. */
.dash-glyph {
    width: 10px; height: 10px; border-radius: 50%;
    display: inline-block; flex-shrink: 0;
}
.dash-glyph--ok    { background: var(--success); box-shadow: 0 0 0 3px var(--success-bg); }
.dash-glyph--warn  { background: var(--warning); box-shadow: 0 0 0 3px var(--warning-bg); }
.dash-glyph--error { background: var(--error);   box-shadow: 0 0 0 3px var(--error-bg); }
.dash-glyph--na    { background: transparent; border: 1.5px solid var(--border-default); }

/* v1.5.5.1: drift badge — configurator 측 view vs dpworldapp 측 실측값 mismatch 시 표시.
   inline 으로 .dash-row__val 안에 들어가는 작은 yellow warning icon + tooltip.
   click 안 함 — 단순 시각 신호 + title hover 로 양쪽 값 보임. */
.drift-warn {
    display: inline-flex; align-items: center; vertical-align: middle;
    margin-left: 0.4rem; color: var(--warning); cursor: help;
}
.drift-warn svg { stroke: var(--warning); }

.dash-disk { margin-bottom: .7rem; }
.dash-disk__head {
    display: flex; justify-content: space-between;
    font-size: 12px; margin-bottom: 3px;
}
.dash-disk__bar {
    /* v1.4.6.10 ②: --color-bg-secondary / --color-border 미정의 → 실제 토큰 사용 */
    height: 11px; background: var(--bg-input, #0E1726);
    border: 1px solid var(--border-default, #2D3A52);
    border-radius: 4px; overflow: hidden;
}
.dash-disk__fill { height: 100%; transition: width .3s; background: var(--success); }
/* v1.5.4.3 U4 fix: tier별 색상 — 인라인 hex 제거, 테마 토큰 적용. */
.dash-disk__fill--ok    { background: var(--success); }
.dash-disk__fill--warn  { background: var(--warning); }
.dash-disk__fill--error { background: var(--error); }


/* ─── Dashboard V2 — Header summary bar (Task 7) ─────────── */
/* Spans full grid width; one-line equipment | iface | mode | uplink.
   Rendered by renderHeaderSummary() → .dash-header-summary element. */
.dash-header-summary {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .4rem .8rem;
    min-width: 0;
    background: var(--bg-input, #0E1726);
    border: 1px solid var(--border-default, #29354A);
    border-radius: 8px;
    padding: .6rem 1rem;
    font-size: 13px;
}
.dash-header__part {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    color: var(--text-secondary, #94A3B8);
    padding: .15rem .45rem;
    border-radius: 4px;
    background: var(--bg-card, #1A2436);
    border: 1px solid var(--border-default, #29354A);
    white-space: nowrap;
}
.dash-header__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
    color: var(--text-muted, #64748B);
}
.dash-header__icon--ok { color: var(--success, #10B981); }
.dash-header__icon--warn { color: var(--warning, #F59E0B); }
.dash-header__icon--error { color: var(--error, #EF4444); }
.dash-header__label {
    color: var(--text-muted, #64748B);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}
.dash-header__value {
    min-width: 0;
    overflow-wrap: anywhere;
}
.dash-header__part--ok { border-color: rgba(16, 185, 129, .28); }
.dash-header__part--warn { border-color: rgba(245, 158, 11, .34); }
.dash-header__part--error { border-color: rgba(239, 68, 68, .38); }
.dash-header__equipment {
    font-weight: 600;
    color: var(--text-primary, #E2E8F0);
}
.dash-header__iface {
    font-family: 'JetBrains Mono', monospace;
}
.dash-header__uplink {
    margin-left: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
}

/* ─── Dashboard V2 — Overall status chip (v1.11.0) ────────── */
.dash-status-chip { display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px; border-radius: var(--radius-sm); font-size: var(--font-size-sm); font-weight: 600; white-space: nowrap; }
.dash-status-chip--ok { background: var(--success-bg); color: var(--success); }
.dash-status-chip--warn { background: var(--warning-bg); color: var(--warning); }
.dash-status-chip--error { background: var(--error-bg); color: var(--error); }

/* ─── Dashboard V2 — Hardware Modules card (v1.11.0) ──────── */
.hw-module + .hw-module { margin-top: var(--space-md); padding-top: var(--space-md); border-top: 1px solid var(--border-default); }
.hw-module__head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.hw-module__name { font-size: var(--font-size-sm); font-weight: 600; color: var(--text-primary); flex: 1; }
.hw-module__state { font-size: 12px; color: var(--text-secondary); }

/* ─── Dashboard V2 — In-card action row (v1.11.0) ─────────── */
.dash-card__action { margin-top: var(--space-md); padding-top: var(--space-md); border-top: 1px solid var(--border-default); }

/* ─── Dashboard V2 — Port slots (Task 7) ──────────────────── */
/* Rendered by renderNetworkCard → net-port-panel / net-ports / net-port boxes. */
.net-port-panel {
    border: 1px solid var(--border-default, #29354A);
    border-radius: 8px;
    background: var(--bg-input, #0E1726);
    padding: .65rem;
    margin-bottom: .85rem;
}
.net-ports {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .5rem;
}
.net-port {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .25rem;
    min-width: 0;
    min-height: 76px;
    padding: .55rem .45rem;
    border: 1.5px solid var(--border-default, #29354A);
    border-radius: 6px;
    background: var(--bg-card, #1A2436);
    text-align: center;
}
.net-port__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 30px;
    color: var(--text-muted, #64748B);
}
.net-port__svg {
    width: 100%;
    height: 100%;
}
.net-port__signal {
    min-height: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
/* Tier colour modifiers — border + subtle bg tint */
.net-port--ok {
    border-color: rgba(16, 185, 129, .38);
    background: var(--bg-card, #1A2436);
    box-shadow: inset 0 -2px 0 rgba(16, 185, 129, .42);
}
.net-port--ok .net-port__icon { color: var(--success, #10B981); }
.net-port--warn {
    border-color: rgba(245, 158, 11, .42);
    background: var(--bg-card, #1A2436);
    box-shadow: inset 0 -2px 0 rgba(245, 158, 11, .44);
}
.net-port--warn .net-port__icon { color: var(--warning, #F59E0B); }
.net-port--error {
    border-color: rgba(239, 68, 68, .48);
    background: var(--bg-card, #1A2436);
    box-shadow: inset 0 -2px 0 rgba(239, 68, 68, .46);
}
.net-port--error .net-port__icon { color: var(--error, #EF4444); }
.net-port--na {
    border-color: var(--border-default, #29354A);
    background: var(--bg-input, #0E1726);
    opacity: .65;
}
.net-port--wired .net-port__icon { transform: translateY(1px); }
.net-port--wifi .net-port__icon { width: 34px; }
.net-port__name {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary, #E2E8F0);
    letter-spacing: 0;
}
.net-port__label {
    font-size: 11px;
    color: var(--text-secondary, #94A3B8);
    line-height: 1.2;
}

.net-iface-list {
    display: grid;
    gap: .35rem;
    margin-bottom: .7rem;
}
.net-iface-row {
    display: grid;
    grid-template-columns: 28px minmax(78px, .7fr) minmax(0, 1.3fr);
    align-items: center;
    gap: .25rem .65rem;
    min-width: 0;
    border: 1px solid rgba(148, 163, 184, .14);
    border-radius: 6px;
    background: rgba(15, 23, 42, .18);
    padding: .42rem .55rem;
    font-size: 12px;
}
.net-iface-row__icon {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    color: var(--text-muted, #64748B);
    background: var(--bg-input, #0E1726);
}
.net-iface-row--advanced .net-iface-row__icon {
    grid-row: 1 / span 2;
}
.net-iface-row__icon--ok { color: var(--success, #10B981); }
.net-iface-row__icon--warn { color: var(--warning, #F59E0B); }
.net-iface-row__icon--error { color: var(--error, #EF4444); }
.net-iface-row__state,
.net-iface-row__item {
    display: inline-flex;
    align-items: center;
    min-width: 0;
    gap: .35rem;
}
.net-iface-row__state {
    grid-column: 2;
}
.net-iface-row--advanced .net-iface-row__state {
    grid-row: 1 / span 2;
}
.net-iface-row__item {
    grid-column: 3;
    justify-content: flex-start;
}
.net-iface-row__name {
    color: var(--text-primary, #E2E8F0);
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
}
.net-iface-row__link,
.net-iface-row__label {
    color: var(--text-muted, #64748B);
    font-size: 11px;
}
.net-iface-row__value {
    color: var(--text-secondary, #94A3B8);
    font-family: 'JetBrains Mono', monospace;
    overflow: visible;
    overflow-wrap: anywhere;
    text-overflow: clip;
    white-space: normal;
}

@media (max-width: 720px) {
    .page-container--dashboard {
        width: calc(100vw - 2rem);
        max-width: calc(100vw - 2rem);
        margin-inline: 0;
    }
    .dash-header-summary {
        align-items: stretch;
    }
    .dash-header__part {
        flex-wrap: wrap;
        max-width: 100%;
        min-width: 0;
        overflow-wrap: anywhere;
        white-space: normal;
    }
    .dash-header__uplink .dash-header__value {
        flex: 1 1 100%;
    }
    .dash-header__uplink {
        flex: 1 1 100%;
        margin-left: 0;
    }
    .net-ports {
        grid-template-columns: 1fr;
        gap: .4rem;
    }
    .net-port {
        flex-direction: row;
        justify-content: flex-start;
        gap: .5rem;
        min-height: 52px;
        padding: .45rem .6rem;
    }
    .net-port__icon {
        width: 30px;
        height: 24px;
    }
    .net-port__signal {
        margin-left: auto;
    }
    .net-iface-row {
        grid-template-columns: 28px 1fr;
        align-items: start;
    }
    .net-iface-row--user .net-iface-row__icon {
        grid-row: 1 / span 2;
    }
    .net-iface-row--advanced .net-iface-row__icon {
        grid-row: 1 / span 3;
    }
    .net-iface-row__state {
        grid-column: 2;
        grid-row: auto;
    }
    .net-iface-row__item {
        grid-column: 2;
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: .4rem;
    }
    .net-iface-row__value {
        white-space: normal;
        overflow: visible;
        overflow-wrap: anywhere;
        text-align: left;
    }
}

/* ─── Dashboard V2 — RSSI bars (Task 7) ───────────────────── */
/* SVG wrapper + individual rect bars rendered by _rssiBarsSvg(). */
.rssi-bars {
    display: inline-block;
    vertical-align: middle;
    flex-shrink: 0;
    margin-left: .35rem;
}
.rssi-bar {
    /* base rect — individual tiers override fill */
}
.rssi-bar--ok    { fill: var(--success, #10B981); }
.rssi-bar--warn  { fill: var(--warning, #F59E0B); }
.rssi-bar--error { fill: var(--error, #EF4444); }
.rssi-bar--empty { fill: var(--border-default, #29354A); }

/* ═══════════════════════════════════════════════════════════════
   v1.4.6.10 — Accessibility (WCAG)
   ═══════════════════════════════════════════════════════════════ */

/* v1.4.6.10 ③: 키보드 포커스 표시 복원. 이전 .btn류에 outline:none만 적용되어 키보드 탭
   이동 시 현재 위치 안 보이던 결함. :focus-visible은 키보드 trigger에만 작동 (마우스 click은
   영향 없음 — 디자인 깨끗 유지). WCAG 2.1 SC 2.4.7 (Focus Visible). */
.btn:focus-visible,
.nav-item:focus-visible,
.theme-toggle:focus-visible,
.input-password__toggle:focus-visible,
.log-file-check:focus-visible,
.log-action-bar__left button:focus-visible,
.checkbox-toggle:focus-visible {  /* v1.5.4.2 L2 — AI/DI toggle keyboard focus (WCAG 2.4.7) */
    outline: 2px solid var(--accent, #6366F1);
    outline-offset: 2px;
}

/* v1.4.6.10 bonus: 모션 민감 사용자 보호 (WCAG 2.1 SC 2.3.3). prefers-reduced-motion 설정 시
   모든 animation/transition을 사실상 즉시 완료 (0.01ms — 0이 아닌 이유는 일부 JS가
   transitionend 이벤트에 의존). */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ═══════════════════════════════════════════════════════════════
   v1.5.0 Phase 1 — Lucide SVG icons + Sidebar nested + Accessibility
   ═══════════════════════════════════════════════════════════════ */

/* v1.5.0 P1: Lucide SVG inline icons.
   inline-block + currentColor stroke → theme 토글 시 자동 색 적용.
   vertical-align: middle → font-size 무관 robust 정렬. */
.icon {
    display: inline-block;
    vertical-align: middle;
    flex-shrink: 0;
    line-height: 0;
}
/* Pointer events: icon 안 button click을 button click과 같이 처리 */
button .icon, a .icon, label .icon { pointer-events: none; }

/* v1.5.0 P1: Skip-to-content link (WCAG 2.4.1). 화면 밖 배치 + focus 시 노출. */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent, #6366F1);
    color: var(--text-inverse, #fff);
    padding: 0.5rem 1rem;
    z-index: 9999;
    text-decoration: none;
    border-radius: 0 0 4px 0;
}
.skip-link:focus { top: 0; }

/* v1.5.0 P1: Sidebar nested nav — group + leaf accordion */
.nav-group {
    display: block;
    margin: 0 0 0.25rem 0;
}
.nav-group__toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: transparent;
    color: var(--text-primary, #F1F5F9);
    border: none;
    cursor: pointer;
    font: inherit;
    font-weight: 500;
    text-align: left;
    border-radius: 4px;
}
.nav-group__toggle:hover { background: var(--bg-card-hover, #263548); }
.nav-group__icon { display: inline-flex; }
.nav-group__label { flex: 1; }
.nav-group__chevron {
    display: inline-flex;
    transition: transform 0.2s ease;
}
.nav-group__toggle[aria-expanded="false"] .nav-group__chevron {
    transform: rotate(-90deg);
}
.nav-group__leaves {
    list-style: none;
    margin: 0;
    padding: 0 0 0 1.5rem;
    overflow: hidden;
    max-height: 1000px;
    transition: max-height 0.25s ease;
}
.nav-group__toggle[aria-expanded="false"] + .nav-group__leaves {
    max-height: 0;
}
.nav-item--leaf {
    padding-left: 0.5rem;
}

/* v1.5.0 P1: page-dirty dot. state.pageDirty matrix 값에 따라 표시.
   JS에서 .has-dirty 클래스 토글. */
.nav-item__dirty {
    display: none;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--warning, #F59E0B);
    box-shadow: 0 0 6px var(--warning-bg);
    margin-left: auto;
}
.nav-item.has-dirty .nav-item__dirty {
    display: inline-block;
}
.nav-item.nav-item--error .nav-item__dirty {
    display: none;
}

/* v1.5.0 P1: Disabled leaf (Firmware placeholder) */
.nav-item--disabled {
    opacity: 0.55;
    pointer-events: none;
}
.nav-item__badge {
    margin-left: auto;
    font-size: 9px;
    padding: 2px 6px;
    border-radius: 8px;
    background: var(--bg-input, #0F172A);
    color: var(--text-muted, #94A3B8);
    letter-spacing: 0.04em;
}

/* v1.5.0 P1: Sidebar overflow safeguard (workflow risk R8) */
.sidebar__nav {
    overflow-y: auto;
    max-height: calc(100vh - 120px); /* header + theme toggle 영역 제외 */
}

/* v1.5.0 P1: prefers-reduced-motion — accordion + chevron 즉시 */
@media (prefers-reduced-motion: reduce) {
    .nav-group__chevron,
    .nav-group__leaves {
        transition: none !important;
    }
}

/* v1.5.0 P1: nav-guard modal */
.nav-guard__backdrop {
    position: fixed; inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex; align-items: center; justify-content: center;
    z-index: 9000;
}
.nav-guard__modal {
    background: var(--bg-card, #1E293B);
    color: var(--text-primary, #F1F5F9);
    padding: 1.5rem;
    border-radius: 8px;
    max-width: 480px;
    width: 90%;
    box-shadow: 0 10px 40px rgba(0,0,0,0.35);
}
.nav-guard__title { margin: 0 0 0.5rem; }
.nav-guard__desc { margin: 0 0 1.25rem; }
.nav-guard__actions {
    display: flex; gap: 0.5rem; justify-content: flex-end;
}/* ═══════════════════════════════════════════════════════════════
   FIRMWARE UPDATE PAGE — graphical status components
   Built on the existing design tokens (style.css). Merge block:
   append verbatim to src/static/css/style.css.
   ═══════════════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════════════════════
   COMPACT LAYOUT (scoped to .fw-page) — minimise scrolling
   ═══════════════════════════════════════════════════════════════ */
.fw-page .page-header { margin-bottom: var(--space-sm); }
.fw-page .page-header__title { font-size: var(--font-size-lg); margin-bottom: 0; }
.fw-page .page-header__desc { font-size: var(--font-size-xs); }
.fw-page .card { padding: var(--space-md); margin-bottom: var(--space-sm); }
.fw-page .card__header { margin-bottom: var(--space-sm); padding-bottom: var(--space-sm); }
.fw-page .card__title { font-size: var(--font-size-base); }
.fw-page .info-banner { padding: 6px var(--space-md); margin-bottom: var(--space-sm); font-size: var(--font-size-xs); }

/* two-column row: upload + pre-flight sit side by side (pre-flash) */
.fw-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); align-items: start; margin-bottom: var(--space-sm); }
.fw-grid2--wide-left { grid-template-columns: 1.4fr 1fr; }
.fw-grid2 .card { margin-bottom: 0; }
@media (max-width: 860px) {
  .fw-grid2, .fw-grid2--wide-left { grid-template-columns: 1fr; }
}

/* smaller stepper */
.fw-page .fw-stepper { margin: 2px 0 var(--space-sm); }
.fw-page .fw-step { min-width: 58px; }
.fw-page .fw-step__dot { width: 24px; height: 24px; font-size: 11px; }
.fw-page .fw-step:not(:first-child)::before { top: 11px; }
.fw-page .fw-step__label { font-size: 10px; }
.fw-page .fw-step__detail { display: none; }   /* drop sub-detail to save height */

/* smaller live bar + slot row */
.fw-page .fw-live { margin-top: 6px; }
.fw-page .fw-live__row { margin-bottom: 4px; }
.fw-page .fw-bar { height: 9px; }
.fw-page .fw-live .flex-between { margin-top: 6px !important; }

/* tighter drop zone */
.fw-page .fw-drop { padding: var(--space-md); }
.fw-page .fw-drop__icon { font-size: 24px; margin-bottom: 4px; }
.fw-page .fw-drop__main { font-size: var(--font-size-sm); }
.fw-page .fw-drop__sub { font-size: 10px; margin-top: 2px; }

/* tighter rows */
.fw-page .fw-comp { padding: 4px 0; }
.fw-page .fw-check { padding: 5px 0; }
.fw-page .fw-check__label { font-size: var(--font-size-xs); min-width: 140px; }
.fw-page .fw-check__detail { font-size: 10px; }

/* compact flash actions + overall */
.fw-page .fw-actions { margin-bottom: var(--space-sm); }
.fw-page .fw-overall__pct { font-size: var(--font-size-md); }

/* compact log */
.fw-page .fw-log { max-height: 140px; font-size: 11px; padding: var(--space-sm); }

/* ─── Sticky progress header (always-visible) ───────────────── */
.fw-sticky-card {
  position: sticky;
  top: var(--space-md);
  z-index: 40;
  box-shadow: var(--shadow-md);
}
.fw-live { margin-top: var(--space-sm); }
.fw-live__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
  gap: var(--space-md);
}
.fw-live__state { font-size: var(--font-size-sm); font-weight: 600; color: var(--text-primary); }
.fw-live__state--active { color: var(--accent); }
.fw-live__state--done { color: var(--success); }
.fw-live__state--error { color: var(--error); }
.fw-live__pct { font-family: var(--font-mono); font-size: var(--font-size-sm); color: var(--text-secondary); white-space: nowrap; }

/* ─── Collapsible done sections ─────────────────────────────── */
.card--collapsed > :not(.card__header) { display: none; }
.card--collapsed .card__header {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}
.card__summary {
  font-size: var(--font-size-xs);
  color: var(--success);
  font-weight: 500;
  margin-left: var(--space-sm);
}
.card__header--clickable { cursor: pointer; user-select: none; }
.card__header--clickable:hover { opacity: 0.85; }

@media (max-width: 768px) {
  .fw-sticky-card { top: calc(var(--header-height) + var(--space-sm)); }
}

/* ═══════════════════════════════════════════════════════════════
   WIZARD (installer-style, one step at a time)
   ═══════════════════════════════════════════════════════════════ */
/* generic hide utility (not defined in the base style.css) */
.hidden { display: none !important; }

.fw-page .fw-wizard-body { margin-bottom: var(--space-sm); }
.fw-step-panel { min-height: 160px; }

.fw-wizard-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  position: sticky;
  bottom: var(--space-sm);
  box-shadow: var(--shadow-md);
}
.fw-wizard-nav .btn { min-width: 120px; }
.fw-nav__hint { font-size: var(--font-size-sm); color: var(--text-muted); }
.fw-nav__hint--error { color: var(--error); font-weight: 600; }
@media (max-width: 768px) {
  .fw-wizard-nav .btn { min-width: 96px; }
}

/* ─── Accessibility helpers ─────────────────────────────────── */
/* v1.7.1 Task 4: generic screen-reader-only utility (mirrors .fw-sr-only). */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.fw-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.fw-drop:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: var(--accent);
}
.fw-reboot__elapsed--overdue { color: var(--warning); font-weight: 600; }

/* ─── Stepper (lifecycle phase tracker) ─────────────────────── */
.fw-stepper {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin: var(--space-sm) 0 var(--space-md);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
}
.fw-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1 1 0;
  min-width: 76px;
  position: relative;
}
/* connector line between dots */
.fw-step:not(:first-child)::before {
  content: '';
  position: absolute;
  top: 15px;
  right: 50%;
  width: 100%;
  height: 2px;
  background: var(--border-default);
  z-index: 0;
}
.fw-step--done:not(:first-child)::before,
.fw-step--active:not(:first-child)::before {
  background: var(--accent);
}
.fw-step__dot {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  background: var(--bg-card);
  border: 2px solid var(--border-default);
  color: var(--text-muted);
  z-index: 1;
  transition: all var(--transition-base);
}
.fw-step__label {
  margin-top: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.02em;
}
.fw-step__detail {
  font-size: 10px;
  color: var(--text-muted);
  opacity: 0.7;
  text-align: center;
  margin-top: 1px;
  max-width: 92px;
  line-height: 1.2;
}
.fw-step--done .fw-step__dot {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}
.fw-step--done .fw-step__label { color: var(--text-secondary); }
.fw-step--active .fw-step__dot {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 4px var(--accent-subtle);
  animation: fwPulse 1.4s ease-in-out infinite;
}
.fw-step--active .fw-step__label { color: var(--accent); font-weight: 600; }
.fw-step--error .fw-step__dot {
  background: var(--error);
  border-color: var(--error);
  color: #fff;
}
.fw-step--error .fw-step__label { color: var(--error); }
@keyframes fwPulse {
  0%, 100% { box-shadow: 0 0 0 4px var(--accent-subtle); }
  50% { box-shadow: 0 0 0 7px var(--accent-subtle); }
}

/* ─── Drop zone ─────────────────────────────────────────────── */
.fw-drop {
  border: 2px dashed var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--bg-input);
}
.fw-drop:hover { border-color: var(--accent); background: var(--bg-input-focus); }
.fw-drop--over {
  border-color: var(--accent);
  background: var(--accent-subtle);
  transform: scale(1.005);
}
.fw-drop__icon { font-size: 32px; display: block; margin-bottom: var(--space-sm); }
.fw-drop__main { font-size: var(--font-size-base); color: var(--text-primary); font-weight: 500; }
.fw-drop__sub { font-size: var(--font-size-xs); color: var(--text-muted); margin-top: var(--space-xs); }
.fw-drop__name { color: var(--accent); font-family: var(--font-mono); }

/* ─── Overall progress ──────────────────────────────────────── */
.fw-overall { margin-bottom: var(--space-md); }
.fw-overall__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-xs);
}
.fw-overall__pct { font-size: var(--font-size-lg); font-weight: 700; color: var(--text-primary); }
.fw-overall__meta { font-size: var(--font-size-xs); color: var(--text-muted); font-family: var(--font-mono); }
.fw-bar {
  height: 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.fw-bar__fill {
  height: 100%;
  width: 0;
  background: var(--accent-gradient);
  transition: width var(--transition-base);
}
.fw-bar__fill--done { background: var(--success); }
.fw-bar__fill--error { background: var(--error); }
/* device-side commit/write in progress — animated stripes signal "still working" */
.fw-bar__fill--busy {
  background-image: linear-gradient(45deg,
    rgba(255, 255, 255, 0.18) 25%, transparent 25%, transparent 50%,
    rgba(255, 255, 255, 0.18) 50%, rgba(255, 255, 255, 0.18) 75%, transparent 75%);
  background-size: 28px 28px;
  animation: fwBusyStripes 0.8s linear infinite;
}
@keyframes fwBusyStripes {
  from { background-position: 0 0; }
  to { background-position: 28px 0; }
}

/* ─── Per-component rows ────────────────────────────────────── */
.fw-comp {
  display: grid;
  grid-template-columns: 28px 110px 1fr 64px;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
}
.fw-comp:last-child { border-bottom: none; }
.fw-comp__sig {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: var(--accent-subtle);
  color: var(--accent);
  text-align: center;
  justify-self: start;
}
.fw-comp__name {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.fw-comp__role { font-size: var(--font-size-sm); color: var(--text-primary); }
.fw-comp__role small { color: var(--text-muted); font-family: var(--font-mono); }
.fw-comp__track {
  height: 7px;
  background: var(--bg-input);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.fw-comp__fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width var(--transition-fast);
}
.fw-comp--done .fw-comp__fill { background: var(--success); width: 100%; }
.fw-comp--active .fw-comp__fill { background: var(--accent); }
.fw-comp--error .fw-comp__fill { background: var(--error); }
.fw-comp__pct {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  text-align: right;
}
.fw-comp__state-icon { font-size: 14px; text-align: center; }
.fw-comp__hash {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
}

/* ─── Inline component row (upload list — one file per row) ──── */
.fw-comp--inline {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.fw-comp--inline .fw-comp__state-icon { color: var(--success); }
.fw-comp--inline .fw-comp__fname {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fw-comp--inline .fw-comp__role2 {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.fw-comp--inline .fw-comp__hash { font-size: 10px; white-space: nowrap; }
.fw-comp--inline .fw-comp__size {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 60px;
  text-align: right;
}
@media (max-width: 768px) {
  .fw-comp--inline .fw-comp__role2,
  .fw-comp--inline .fw-comp__hash { display: none; }
}

/* ─── Firmware build date line ──────────────────────────────── */
.fw-builddate {
  margin-top: var(--space-sm);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}
.fw-builddate strong { color: var(--text-primary); font-family: var(--font-mono); }

/* ─── Pre-flight checklist ──────────────────────────────────── */
.fw-check {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(51, 65, 85, 0.25);
}
.fw-check:last-child { border-bottom: none; }
.fw-check__label { font-size: var(--font-size-sm); color: var(--text-primary); min-width: 200px; }
.fw-check__detail { font-size: var(--font-size-xs); color: var(--text-muted); font-family: var(--font-mono); flex: 1; }
.fw-check__opt { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }

/* ─── Slot before→after badge ───────────────────────────────── */
.fw-slot { display: inline-flex; align-items: center; gap: var(--space-xs); font-size: var(--font-size-sm); }
.fw-slot__pill {
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 2px 9px;
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
}
.fw-slot__pill--next { background: var(--accent-subtle); border-color: var(--accent); color: var(--accent); }
.fw-slot__arrow { color: var(--text-muted); }

/* ─── Reboot watchdog ───────────────────────────────────────── */
.fw-reboot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl) var(--space-md);
  text-align: center;
}
.fw-reboot__title { font-size: var(--font-size-md); font-weight: 600; color: var(--warning); }
.fw-reboot__sub { font-size: var(--font-size-sm); color: var(--text-secondary); max-width: 420px; }
.fw-reboot__elapsed { font-family: var(--font-mono); font-size: var(--font-size-sm); color: var(--text-muted); }

/* ─── Result banner (config preserved / restored) ───────────── */
.fw-result {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
}
.fw-result--ok { background: var(--success-bg); color: var(--success); border: 1px solid rgba(16,185,129,0.25); }
.fw-result--warn { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(245,158,11,0.25); }
.fw-result__icon { font-size: 20px; }

/* ─── Log console (collapsible) ─────────────────────────────── */
/* v1.5.4.3 U5 fix: 하드코딩 hex → 테마 토큰. 라이트 테마에서도 가독성 유지.
   터미널 외관을 의도적으로 유지하려면 별도 클래스(.fw-log--terminal)로 분리할 것. */
.fw-log {
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  max-height: 220px;
  overflow-y: auto;
  white-space: pre-wrap;
  line-height: 1.6;
  border: 1px solid var(--border-default);
}

/* ─── Drop zone disabled (during flash) ─────────────────────── */
.fw-drop--disabled {
  opacity: 0.45;
  pointer-events: none;
  cursor: not-allowed;
  border-style: solid;
}

/* ─── Flash done / rebooted summary ─────────────────────────── */
.fw-done {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-sm);
}
.fw-done__icon { font-size: 28px; flex-shrink: 0; }
.fw-done__title { font-size: var(--font-size-md); font-weight: 600; }
.fw-done--ok .fw-done__title { color: var(--success); }
.fw-done--reboot .fw-done__title { color: var(--accent); }
.fw-done__sub { font-size: var(--font-size-sm); color: var(--text-secondary); margin-top: 2px; }

/* ─── Power-loss danger banner (during flash/reboot) ────────── */
.fw-danger {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  background: var(--error-bg);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: var(--error);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  animation: fwDangerPulse 1.6s ease-in-out infinite;
}
@keyframes fwDangerPulse {
  0%, 100% { border-color: rgba(239, 68, 68, 0.35); }
  50% { border-color: rgba(239, 68, 68, 0.8); }
}

/* ─── Completion report ─────────────────────────────────────── */
.fw-report { font-size: var(--font-size-sm); }
.fw-report__row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 4px 0;
  border-bottom: 1px solid rgba(51, 65, 85, 0.22);
}
.fw-report__row:last-child { border-bottom: none; }
.fw-report__row span:first-child { color: var(--text-secondary); white-space: nowrap; }
.fw-report__row span:last-child {
  font-family: var(--font-mono);
  color: var(--text-primary);
  text-align: right;
  word-break: break-all;
}

/* ─── Confirm modal ─────────────────────────────────────────── */
.fw-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1100;
  padding: var(--space-md);
  backdrop-filter: blur(2px);
  animation: fadeIn var(--transition-fast) ease;
}
.fw-modal {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 480px;
  width: 100%;
  padding: var(--space-lg);
}
.fw-modal__title {
  font-size: var(--font-size-md);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.fw-modal__body { font-size: var(--font-size-sm); color: var(--text-secondary); }
.fw-modal__list { margin: var(--space-md) 0; }
.fw-modal__row {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  padding: 4px 0;
  border-bottom: 1px solid rgba(51, 65, 85, 0.25);
}
.fw-modal__row:last-child { border-bottom: none; }
.fw-modal__row span:first-child { font-family: var(--font-mono); color: var(--text-primary); }
.fw-modal__row span:last-child { font-family: var(--font-mono); color: var(--text-secondary); }
.fw-modal__slot { margin: var(--space-md) 0; display: flex; align-items: center; gap: var(--space-sm); }
.fw-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* ─── Action row ────────────────────────────────────────────── */
.fw-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; align-items: center; }
.fw-actions__spacer { flex: 1; }

/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .fw-comp { grid-template-columns: 24px 64px 1fr 48px; }
  .fw-check__label { min-width: 130px; }
  .fw-step { min-width: 64px; }
}

/* ─── v1.5.0 P4b: log.js 3 horizontal tabs ──────────────────── */
.log-tabs {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--border-default);
    margin-bottom: 1rem;
}
.log-tab {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font: inherit;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border-bottom: 2px solid transparent;
    transition: color 0.15s, border-color 0.15s;
}
.log-tab:hover { color: var(--text-primary); }
.log-tab--active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.log-tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.log-tab-panel[hidden] { display: none; }
@media (prefers-reduced-motion: reduce) {
    .log-tab { transition: none; }
}

/* ─── v1.6.0 Network Apply badge ──────────────────────────── */
.net-badge {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 4px;
    font-size: var(--font-size-xs);
    font-family: var(--font-mono);
    font-weight: 600;
}
.net-badge--ok   { background: var(--success-bg); color: var(--success); }
.net-badge--warn { background: var(--warning-bg); color: var(--warning); }
.net-badge--fail { background: var(--error-bg);   color: var(--error);   }
.net-badge--na   { background: rgba(100,116,139,.15); color: var(--text-muted); }

/* ═══════════════════════════════════════════════════════════════
   v1.7.0 — Pending Changes (미저장/미적용 배지 + 패널)
   기존 토큰(--warning/--info/--bg-card/--text-primary/--border) 재사용.
   ═══════════════════════════════════════════════════════════════ */
.pending-badge {
    display: flex; align-items: center; gap: 0.4rem;
    width: 100%; justify-content: center;
    margin-bottom: var(--space-sm, 8px);
    padding: 5px 8px;
    border: 1px solid var(--border, rgba(148,163,184,.3));
    border-radius: 6px;
    background: var(--bg-card, #1E293B);
    color: var(--text-primary, #F1F5F9);
    font-size: var(--font-size-xs, 12px);
    cursor: pointer;
}
.pending-badge.hidden { display: none; }
/* v1.7.1 Task 5: emphasis after a Save that leaves unapplied changes. */
.pending-badge--flash {
    animation: pendingFlash 0.6s ease-in-out 0s 3;
    border-color: var(--warning, #F59E0B);
}
@keyframes pendingFlash {
    0%, 100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
    50%      { box-shadow: 0 0 0 3px rgba(245, 158, 11, .45); }
}
@media (prefers-reduced-motion: reduce) {
    .pending-badge--flash { animation: none; }
}
/* Mobile header badge: compact — no full-width stretch, no bottom margin */
.mobile-header .pending-badge {
    width: auto;
    margin-bottom: 0;
}
.pending-badge__count { display: inline-flex; align-items: center; gap: 0.3rem; white-space: nowrap; }
.pending-badge__sep { opacity: 0.5; margin: 0 0.2rem; }
.pending-badge__dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.pending-badge__count--unsaved   .pending-badge__dot { background: var(--warning, #F59E0B); }
.pending-badge__count--unapplied  .pending-badge__dot { background: var(--info, #3B82F6); }

/* Panel — nav-guard__backdrop/modal 스타일 흡수 + 자체 헤더/섹션 */
.pending-panel__backdrop {
    position: fixed; inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex; align-items: center; justify-content: center;
    z-index: 9100;
}
.pending-panel__modal {
    max-width: 640px; width: 92%;
    max-height: 82vh; overflow-y: auto;
}
.pending-panel__header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.75rem; }
.pending-panel__title { margin: 0; font-size: var(--font-size-lg, 18px); }
.pending-panel__close {
    background: none; border: none; cursor: pointer;
    font-size: 1.4rem; line-height: 1; color: var(--text-muted, #94A3B8);
}
.pending-section { margin-bottom: 1.25rem; }
.pending-section__title { font-size: var(--font-size-base, 14px); margin: 0 0 0.5rem; }
.pending-section--unapplied .pending-section__title { color: var(--info, #3B82F6); }
.pending-section__actions { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 0.5rem; }
.pending-empty { color: var(--text-muted, #94A3B8); margin: 0; }
.pending-block {
    border: 1px solid var(--border, rgba(148,163,184,.25));
    border-radius: 6px; padding: 0.6rem 0.75rem; margin-bottom: 0.6rem;
}
.pending-block__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.4rem; }
.pending-block__title { margin: 0; font-size: var(--font-size-sm, 13px); }
.pending-diff { width: 100%; border-collapse: collapse; font-size: var(--font-size-xs, 12px); }
.pending-diff th, .pending-diff td { text-align: left; padding: 2px 6px; vertical-align: top; }
.pending-diff th { color: var(--text-muted, #94A3B8); font-weight: 600; }
.pending-diff__field { font-family: var(--font-mono); }
.pending-diff__old { color: var(--text-muted, #94A3B8); text-decoration: line-through; }
.pending-diff__arrow { color: var(--text-muted, #94A3B8); }
.pending-diff__new { color: var(--warning, #F59E0B); font-weight: 600; }
.pending-unapplied__desc { color: var(--text-muted, #94A3B8); font-size: var(--font-size-xs, 12px); margin: 0 0 0.4rem; }
.pending-unapplied__list { margin: 0 0 0.5rem; padding-left: 1.1rem; }
.pending-unapplied__item { font-family: var(--font-mono); font-size: var(--font-size-xs, 12px); }