:root {
  --bg: #eef1f6;
  --surface: #ffffff;
  --surface-muted: #f5f7fb;
  --line: #dfe5ee;
  --text: #5d6a7d;
  --heading: #33445b;
  --sidebar: #31435f;
  --sidebar-deep: #25354c;
  --sidebar-active: #1f90ff;
  --accent: #4ea0ff;
  --accent-strong: #3f97f7;
  --danger: #ff5e5e;
  --success: #3e9b61;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: "Segoe UI", "Malgun Gothic", sans-serif; background: var(--bg); color: var(--text); }
a { text-decoration: none; color: inherit; }
button, input, select, textarea { font: inherit; }

.login-body {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(78,160,255,0.22), transparent 30%),
    linear-gradient(180deg, #1f2f45 0%, #2f4260 100%);
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(440px, 100%);
  background: rgba(255,255,255,0.97);
  border: 1px solid rgba(223,229,238,0.9);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 26px 70px rgba(16, 28, 44, 0.35);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}

.login-copy h1 {
  margin: 0;
  font-size: 28px;
  color: var(--heading);
}

.login-copy p {
  margin: 8px 0 0;
  font-size: 14px;
  color: #6e7d92;
}

.login-form {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.login-submit {
  min-height: 40px;
}

.login-error {
  margin-top: 18px;
  border: 1px solid #f1c6c6;
  background: #fff1f1;
  color: #b14e4e;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 13px;
}

.login-hint {
  margin-top: 16px;
  font-size: 13px;
  color: #6f7d91;
}

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 200px;
  background: linear-gradient(180deg, var(--sidebar-deep), var(--sidebar));
  color: #dbe4f0;
  padding: 18px 0 24px;
  flex: 0 0 200px;
}

.brand { display: flex; align-items: center; gap: 10px; padding: 0 18px 16px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.brand-mark { width: 34px; height: 34px; border-radius: 999px; background: rgba(255,255,255,0.12); display: flex; align-items: center; justify-content: center; font-weight: 700; color: #fff; }
.brand-title { color: #fff; font-size: 20px; font-weight: 700; line-height: 1; }
.brand-subtitle { margin-top: 4px; font-size: 11px; opacity: 0.7; }

.nav { padding-top: 10px; }
.nav-group { margin-bottom: 2px; }
.nav-item, .nav-child {
  display: flex;
  align-items: center;
  min-height: 42px;
  padding: 0 18px;
  color: #dbe4f0;
}
.nav-item { justify-content: space-between; }
.nav-item.active, .nav-child.active { background: rgba(78,160,255,0.18); color: #58a5ff; font-weight: 600; }
.nav-label { font-size: 14px; }
.nav-caret {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.18s ease;
}
.nav-children { display: none; padding-bottom: 6px; }
.nav-group.expanded .nav-children { display: block; }
.nav-group.expanded .nav-caret { transform: rotate(225deg); }
.nav-child { padding-left: 32px; font-size: 13px; min-height: 40px; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: 56px;
  background: #243349;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 12px; }
.menu-toggle { display: none; border: 0; background: transparent; color: #fff; font-size: 20px; }
.topbar-crumbs { font-size: 13px; opacity: 0.92; }
.crumb-sep { margin: 0 6px; opacity: 0.55; }
.legacy-link { font-size: 12px; padding: 6px 10px; border-radius: 4px; background: rgba(255,255,255,0.1); }
.user-pill { font-size: 14px; }
.theme-pill { border: 0; background: var(--accent-strong); color: #fff; border-radius: 3px; padding: 6px 12px; font-size: 12px; }
.logout-form { margin: 0; }
.logout-button {
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
  color: #fff;
  border-radius: 4px;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
}

.workspace-tabs {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  padding: 6px 8px 0;
  background: #f5f6f8;
  border-bottom: 1px solid #e0e4eb;
}
.workspace-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: #fff;
  border: 1px solid #dce3eb;
  border-bottom: 0;
  border-radius: 4px 4px 0 0;
  font-size: 12px;
  color: #6d7b90;
  white-space: nowrap;
}
.workspace-tab-link { color: inherit; }
.workspace-tab.active { background: var(--accent-strong); color: #fff; border-color: var(--accent-strong); }
.workspace-close {
  border: 0;
  background: transparent;
  color: inherit;
  opacity: 0.7;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}
.workspace-close:hover { opacity: 1; }

.content { padding: 14px 8px 20px; }
.page-header { display: flex; align-items: center; gap: 12px; padding: 8px 10px 10px; }
.page-kicker { font-size: 13px; color: #7b8798; }
.page-header h1 { margin: 0; font-size: 20px; color: var(--heading); }
.mock-badge { margin-left: auto; padding: 5px 8px; background: #fff2cc; color: #8c6b00; border: 1px solid #f0d889; border-radius: 999px; font-size: 11px; font-weight: 700; }

.subtabs {
  display: flex;
  gap: 20px;
  padding: 0 22px 0 22px;
  border-bottom: 1px solid var(--line);
  margin: 0 10px 0;
}
.subtabs.embedded { padding: 0 0 12px; margin: 0 0 12px; }
.subtab {
  position: relative;
  padding: 12px 0;
  font-size: 13px;
  font-weight: 600;
  color: #5f6e84;
}
.subtab.active { color: var(--accent-strong); }
.subtab.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--accent-strong);
}

.blocks { display: grid; gap: 14px; padding: 0 10px; }
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 14px 22px 20px;
}
.panel-header { padding-bottom: 12px; border-bottom: 1px solid #edf1f6; margin-bottom: 14px; }
.panel-header h2 { margin: 0; font-size: 14px; font-weight: 700; color: #5f6e84; }
.panel-header p { margin: 6px 0 0; font-size: 12px; color: #8996a8; }
.panel-header-actions { display: flex; justify-content: space-between; align-items: center; gap: 12px; }

.port-link-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 8px;
}
.port-link {
  border: 1px solid #aeb7c4;
  background: #f8fafc;
  border-radius: 6px;
  padding: 8px 4px;
  text-align: center;
  font-size: 11px;
}
.port-link.up { border-color: #6da884; background: #edf9f1; }
.port-link.down { border-color: #b7bec8; background: #f5f6f8; }
.port-link.blink { box-shadow: 0 0 0 2px rgba(78,160,255,0.18); }

.port-link-card {
  border: 1px solid #aeb7c4;
  background: #f8fafc;
  border-radius: 8px;
  overflow: hidden;
}
.port-link-card.up { border-color: #6da884; background: #edf9f1; }
.port-link-card.down { border-color: #b7bec8; background: #f5f6f8; }
.port-link-card.blink { box-shadow: 0 0 0 2px rgba(78,160,255,0.18); }
.port-link-card.active {
  box-shadow: 0 0 0 2px rgba(63,151,247,0.32);
}
.port-link-view {
  border: 0;
  background: transparent;
  padding: 8px 4px;
  text-align: center;
  font-size: 11px;
  width: 100%;
  cursor: pointer;
}
.port-link-view { min-height: 78px; display: grid; align-content: center; gap: 4px; }
.port-link-number { font-weight: 700; color: #44546a; }
.port-link-state { margin-top: 4px; color: #718197; }
.port-link-caption { font-size: 10px; color: #4f86d6; font-weight: 700; }
.port-link-apply {
  width: 100%;
  border: 0;
  border-top: 1px solid rgba(94, 112, 135, 0.16);
  background: rgba(255,255,255,0.7);
  color: #4c627d;
  font-size: 11px;
  font-weight: 700;
  padding: 7px 4px;
  cursor: pointer;
}
.port-link-apply.selected {
  background: #3f97f7;
  color: #fff;
}

.kv-table { display: grid; }
.kv-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 44px;
  align-items: center;
  border-bottom: 1px solid #eef2f6;
}
.kv-row:last-child { border-bottom: 0; }
.kv-key { color: #67778d; }
.kv-value { color: #4b5c73; }

.mock-form { display: grid; gap: 14px; }
.form-grid {
  display: grid;
  grid-template-columns: 360px;
  gap: 14px 24px;
}
.compact-grid { grid-template-columns: repeat(2, minmax(240px, 360px)); }
.form-row { display: grid; gap: 7px; }
.form-row label { font-size: 13px; color: #6b7b91; }
.required { color: #ef7e7e; }
.form-row input[type="text"],
.form-row input[type="password"],
.form-row select,
.form-row textarea {
  width: 100%;
  min-height: 32px;
  border: 1px solid #d9e0ea;
  border-radius: 4px;
  background: #fff;
  padding: 6px 10px;
  color: #607188;
}
.form-row textarea { resize: vertical; min-height: 110px; }
.field-hint { font-size: 11px; color: #97a4b3; }

.switch { position: relative; width: 34px; height: 18px; display: inline-flex; }
.switch input { display: none; }
.slider {
  width: 34px;
  height: 18px;
  border-radius: 999px;
  background: #d8dee8;
  position: relative;
}
.slider::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0,0,0,0.14);
}
.switch input:checked + .slider { background: #72b1ff; }
.switch input:checked + .slider::after { transform: translateX(16px); }

.target-grid-wrap { border-top: 1px solid #edf1f6; padding-top: 10px; }
.target-title { margin-bottom: 10px; font-size: 13px; color: #67778d; font-weight: 600; }
.target-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}
.target-chip {
  position: relative;
  display: grid;
  gap: 4px;
  min-height: 72px;
  padding: 12px 8px;
  border: 1px solid #b8c2cf;
  border-radius: 10px;
  background: #f8fafc;
  color: #5f6e84;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}
.target-chip:hover {
  transform: translateY(-1px);
  border-color: #7bb0f5;
}
.target-chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.target-chip.selected {
  border-color: #6da884;
  background: #edf9f1;
  box-shadow: 0 0 0 2px rgba(78,160,255,0.16);
}
.target-chip-number {
  font-size: 13px;
  font-weight: 700;
  color: #44546a;
}
.target-chip-state {
  font-size: 11px;
  color: #718197;
}

.panel-actions { display: flex; gap: 12px; align-items: center; }
.panel-actions.compact { margin-bottom: 0; }
.modal-form .panel-actions,
.group-modal .panel-actions {
  margin-top: 18px;
}
.btn {
  border: 1px solid transparent;
  border-radius: 3px;
  padding: 8px 18px;
  font-size: 12px;
  cursor: pointer;
}
.btn.primary { background: var(--accent-strong); color: #fff; }
.btn.secondary { background: #fff; border-color: #d7dee9; color: #6b7c91; }
.btn.danger { background: var(--danger); color: #fff; }

.note-list { display: grid; gap: 6px; }
.note-item { font-size: 12px; color: #8a97a6; }

.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th, .data-table td { padding: 12px 14px; border-bottom: 1px solid #eef2f6; text-align: left; color: #5e7087; }
.data-table th { background: #f3f6fa; font-weight: 700; color: #6d7d94; }
.row-actions { white-space: nowrap; }
.link-action { border: 0; background: transparent; padding: 0 2px; font-size: 12px; cursor: pointer; }
.link-action.primary { color: var(--accent-strong); }
.link-action.danger { color: var(--danger); }
.empty-state { text-align: center; color: #98a5b3; }

.action-panel .action-copy { margin-bottom: 16px; font-size: 13px; color: #6b7b90; }
.result-box {
  min-height: 180px;
  border: 1px solid #d9e0ea;
  border-radius: 4px;
  background: #fbfcfe;
  padding: 10px;
  white-space: pre-wrap;
  color: #65758d;
}
.modal-layer {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 1200;
}
.modal-layer[hidden] {
  display: none;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(27, 40, 58, 0.42);
  backdrop-filter: blur(2px);
}
.modal-box {
  position: relative;
  z-index: 1;
  width: min(720px, calc(100vw - 32px));
  border: 1px solid #dfe5ee;
  background: #fbfcfe;
  border-radius: 10px;
  padding: 18px;
  box-shadow: 0 24px 60px rgba(20, 33, 52, 0.24);
}
.modal-form {
  display: grid;
  gap: 18px;
}
.modal-form .form-grid {
  gap: 18px 24px;
}
.group-modal {
  width: min(920px, calc(100vw - 32px));
}
.group-modal .form-grid {
  gap: 18px 24px;
  margin-bottom: 18px;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.modal-close {
  border: 0;
  background: transparent;
  color: #6b7c91;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 4px;
}
.modal-message { margin: 0 0 18px; font-size: 13px; color: #6d7c91; }
.group-permission-grid,
.group-permission-checks {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 8px;
}
.group-permission-grid {
  margin-top: 18px;
}
.group-permission-checks {
  margin-top: 14px;
  margin-bottom: 18px;
}
.group-permission-cell {
  min-height: 64px;
  border: 1px solid #dfe5ee;
  border-radius: 8px;
  background: #f8fbff;
  padding: 12px 8px;
  text-align: center;
  font-size: 12px;
  color: #6b7c91;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.45;
}
.group-permission-cell.heading {
  font-weight: 700;
  color: #607188;
  background: #f3f7fc;
}
.permission-chip {
  min-height: 44px;
  border: 1px solid #d9e3ef;
  border-radius: 8px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 12px;
  color: #5f6e84;
}
.permission-chip input {
  margin: 0;
}
.permission-chip.selected {
  border-color: #5aa57a;
  background: #edf8f1;
  color: #24523a;
}

.toast-root {
  position: fixed;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 10px;
  z-index: 1000;
}
.toast {
  min-width: 260px;
  max-width: 360px;
  background: #243349;
  color: #fff;
  border-radius: 6px;
  padding: 12px 14px;
  box-shadow: 0 12px 24px rgba(0,0,0,0.18);
  font-size: 13px;
}

@media (max-width: 1100px) {
  .compact-grid { grid-template-columns: 1fr; }
  .port-link-grid { grid-template-columns: repeat(8, minmax(0, 1fr)); }
  .target-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .group-permission-grid,
  .group-permission-checks { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 920px) {
  .sidebar { position: fixed; inset: 0 auto 0 0; transform: translateX(-100%); z-index: 30; }
  body.sidebar-open .sidebar { transform: translateX(0); }
  .menu-toggle { display: inline-flex; }
  .compact-grid, .form-grid { grid-template-columns: 1fr; }
  .target-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .group-permission-grid,
  .group-permission-checks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}