/* ============================================================
   AIRIX Connect · BriTeM-style Maritime Operations Console
   Single stylesheet — no frameworks, no CDN CSS.
   ============================================================
   Sections:
     1.  Design tokens
     2.  Reset & base typography
     3.  Login page
     4.  App shell (grid)
     5.  Top bar (includes/header.php)
     6.  Sidebar (includes/sidebar.php)
        6.1  Menu
        6.2  Pending Actions
        6.3  Assistance CTA
     7.  Main area
        7.1  Map pages (Leaflet)
        7.2  Right overlay · numbered modules
        7.3  Content pages (panel grid, no map)
     8.  Panel system (preserved from original)
     9.  KPIs, metrics, badges, tables, progress
     10. Responsive
     11. Scrollbars
   ============================================================ */

/* 1. Design tokens ------------------------------------------- */
:root {
  --bg-app:        #0b1220;
  --bg-panel:      #1a2233;
  --bg-panel-2:    #111c31;
  --bg-sidebar:    #2b2f33;
  --bg-sidebar-2:  #22262a;
  --bg-topbar:     #1e5fa8;
  --bg-topbar-2:   #1a5398;

  --accent:        #0ea5e9;
  --accent-2:      #38bdf8;

  --text:          #e5eefc;
  --text-dim:      #9aa6b6;
  --text-muted:    #6b7684;

  --success:       #22c55e;
  --warning:       #f59e0b;
  --danger:        #ef4444;

  --border:        rgba(255,255,255,0.06);
  --border-strong: rgba(255,255,255,0.14);
  --shadow-soft:   0 10px 28px rgba(2,8,23,0.28);

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;

  --space-1: 6px;
  --space-2: 10px;
  --space-3: 14px;
  --space-4: 18px;
  --space-5: 24px;
  --space-6: 32px;

  --font-11: 11px;
  --font-12: 12px;
  --font-13: 13px;
  --font-14: 14px;
  --font-16: 16px;
  --font-18: 18px;
  --font-22: 22px;
  --font-28: 28px;

  --topbar-h:  60px;
  --sidebar-w: 260px;
}

/* 2. Reset & base -------------------------------------------- */
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg-app);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--font-14);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
a  { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; }
button, input, select, textarea { font: inherit; }

/* 3. Login page ---------------------------------------------- */
.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--space-6);
  background:
    radial-gradient(circle at 30% 20%, rgba(14,165,233,0.18), transparent 24%),
    radial-gradient(circle at 70% 75%, rgba(14,165,233,0.08), transparent 22%),
    linear-gradient(135deg, #0b1220 0%, #0e1b31 45%, #0b1220 100%);
}
.login-shell {
  width: min(980px, 100%);
  display: grid;
  grid-template-columns: 1.05fr 400px;
  gap: var(--space-5);
}
.login-hero,
.login-card {
  background: rgba(15,23,42,0.92);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: var(--space-6);
}
.login-hero {
  position: relative;
  overflow: hidden;
  min-height: 560px;
}
.login-hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(14,165,233,0.06) 1px, transparent 1px),
    linear-gradient(rgba(14,165,233,0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.3;
  pointer-events: none;
}
.login-hero > * { position: relative; z-index: 1; }
.login-card { align-self: center; }
.hero-kicker {
  font-size: var(--font-11);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--text-dim);
}
.hero-title {
  font-size: var(--font-28);
  font-weight: 600;
  line-height: 1.15;
  margin: var(--space-5) 0 var(--space-3);
  max-width: 520px;
}
.hero-copy {
  max-width: 520px;
  color: var(--text-dim);
  margin-bottom: var(--space-6);
}
.hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: var(--space-3);
  max-width: 620px;
}
.hero-tile {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}
.hero-tile h3 { font-size: var(--font-16); font-weight: 500; margin-bottom: var(--space-2); }
.hero-tile p  { margin: 0; font-size: var(--font-13); color: var(--text-dim); }

.form-group { display: grid; gap: var(--space-2); margin-bottom: var(--space-4); }
.form-group label {
  font-size: var(--font-11);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}
.input, .select, .textarea {
  width: 100%;
  border: 1px solid var(--border-strong);
  background: #0c1627;
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  outline: none;
}
.input:focus, .select:focus, .textarea:focus {
  border-color: rgba(14,165,233,0.6);
  box-shadow: 0 0 0 2px rgba(14,165,233,0.14);
}
.btn {
  border: 0;
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  cursor: pointer;
  font-size: var(--font-13);
  font-weight: 500;
  transition: 0.18s ease;
}
.btn-primary   { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #0891d0; }
.btn-secondary {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-strong);
  color: var(--text);
}
.btn-block { width: 100%; }
.form-hint { font-size: var(--font-12); color: var(--text-dim); margin: 0; }

/* 4. App shell ----------------------------------------------- */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr;
  grid-template-areas:
    "topbar topbar"
    "sidebar main";
  height: 100vh;
  overflow: hidden;
}

/* 5. Top bar ------------------------------------------------- */
.topbar {
  grid-area: topbar;
  background: linear-gradient(180deg, var(--bg-topbar) 0%, var(--bg-topbar-2) 100%);
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  padding: 0 0 0 20px;
  border-bottom: 1px solid rgba(0,0,0,0.35);
  box-shadow: 0 2px 12px rgba(0,0,0,0.28);
  position: relative;
  z-index: 40;
}
.topbar-left   { display: flex; align-items: center; gap: 18px; }
.brand-wordmark {
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.4px;
  color: #fff;
  font-style: italic;
}
.page-context {
  color: rgba(255,255,255,0.78);
  font-size: 12px;
  padding-left: 14px;
  border-left: 1px solid rgba(255,255,255,0.22);
}
.page-context strong { color: #fff; font-weight: 600; }

.topbar-right { display: flex; align-items: stretch; }
.topbar-tool {
  display: flex; align-items: center; justify-content: center;
  width: 60px;
  border-left: 1px solid rgba(255,255,255,0.18);
  color: #fff; cursor: pointer;
  transition: background .15s;
}
.topbar-tool:hover { background: rgba(0,0,0,0.14); }
.topbar-tab {
  display: flex; align-items: center;
  padding: 0 22px;
  color: #fff; font-size: 13px; font-weight: 500;
  border-left: 1px solid rgba(255,255,255,0.18);
  cursor: pointer;
  transition: background .15s;
  position: relative;
}
.topbar-tab:hover,
.topbar-tab.active { background: rgba(0,0,0,0.18); }
.topbar-tab.has-badge::after {
  content: attr(data-badge);
  position: absolute;
  top: 12px; right: 10px;
  background: var(--warning);
  color: #1a1a1a;
  font-size: 10px; font-weight: 700;
  min-width: 16px; height: 16px;
  padding: 0 5px;
  border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
}

/* 6. Sidebar ------------------------------------------------- */
.sidebar {
  grid-area: sidebar;
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(0,0,0,0.35);
  overflow-y: auto;
}
/* 6.1 menu */
.side-menu { display: flex; flex-direction: column; padding: 14px 0 6px; }
.side-item {
  display: block;
  padding: 14px 20px;
  color: var(--text);
  font-size: var(--font-14);
  font-weight: 500;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  cursor: pointer;
  transition: background .15s, padding-left .15s;
  position: relative;
}
.side-item:hover { background: rgba(14,165,233,0.08); padding-left: 24px; }
.side-item.active {
  background: var(--bg-sidebar-2);
  color: #fff;
}
.side-item.active::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
}

/* 6.2 Pending Actions */
.pending-panel {
  margin: 18px 14px 12px;
  background: rgba(0,0,0,0.22);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
}
.pending-header {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.pending-header .bell {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(34,197,94,0.15);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--success);
  flex-shrink: 0;
}
.pending-header .bell svg { width: 18px; height: 18px; }
.pending-title {
  font-size: var(--font-14);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(255,255,255,0.25);
}
.pending-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.pending-list li {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: var(--font-13); color: var(--text); line-height: 1.3;
}
.pending-list li::before {
  content: "▲";
  color: var(--warning);
  font-size: 10px;
  margin-top: 3px;
  flex-shrink: 0;
}
.pending-list li.pending--ok::before    { content: "●"; color: var(--success); }
.pending-list li.pending--crit::before  { content: "■"; color: var(--danger); }

/* 6.3 Assistance CTA */
.assistance-cta {
  margin: auto 14px 14px;
  background: rgba(14,165,233,0.08);
  border: 1px solid rgba(14,165,233,0.22);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex; align-items: center; gap: 12px;
  cursor: pointer;
  transition: background .15s;
}
.assistance-cta:hover { background: rgba(14,165,233,0.14); }
.assistance-icon {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; flex-shrink: 0;
}
.assistance-icon svg { width: 22px; height: 22px; }
.assistance-text strong { display: block; font-size: var(--font-13); font-weight: 600; }
.assistance-text small  { color: var(--text-dim); font-size: var(--font-11); }

/* 7. Main area ----------------------------------------------- */
.main-area {
  grid-area: main;
  position: relative;
  overflow: hidden;
  background: #0a0f1a;
}

/* 7.1 map pages */
.map-container { position: absolute; inset: 0; z-index: 1; }
.leaflet-container { background: #0a0f1a; font-family: inherit; }
.leaflet-control-attribution {
  background: rgba(0,0,0,0.55) !important;
  color: rgba(255,255,255,0.55) !important;
  font-size: 10px !important;
}
.leaflet-control-attribution a { color: rgba(255,255,255,0.75) !important; }
.leaflet-bar a {
  background: var(--bg-panel) !important;
  color: var(--text) !important;
  border-color: var(--border-strong) !important;
}
.leaflet-bar a:hover { background: var(--bg-sidebar-2) !important; }
.vessel-popup .leaflet-popup-content-wrapper {
  background: var(--bg-panel);
  color: var(--text);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}
.vessel-popup .leaflet-popup-tip {
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
}
.vessel-popup .leaflet-popup-content { margin: 10px 14px; font-size: 12px; }
.vessel-popup .leaflet-popup-content strong { color: var(--accent-2); }
.vessel-popup ul { margin: 6px 0 2px; padding-left: 16px; }
.vessel-popup li { margin: 2px 0; }

/* 7.2 right overlay (numbered modules) */
.right-overlay {
  position: absolute;
  top: 18px; right: 18px; bottom: 18px;
  width: 360px;
  z-index: 10;
  display: flex; flex-direction: column; gap: 10px;
  background: rgba(11,18,32,0.78);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: 0 16px 36px rgba(0,0,0,0.48);
  overflow-y: auto;
}
.overlay-heading {
  color: var(--text);
  font-size: var(--font-13);
  font-weight: 500;
  margin: 0 0 6px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  line-height: 1.4;
}
.overlay-heading strong { color: var(--accent-2); font-weight: 600; }
.overlay-section-label {
  font-size: var(--font-11);
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 4px 0 2px;
}
.module {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 3px;
  color: var(--text);
  cursor: pointer;
  transition: background .15s, transform .15s;
  overflow: hidden;
}
.module:hover { background: rgba(14,165,233,0.12); transform: translateX(-2px); }
.module-num {
  background: var(--accent);
  color: #fff;
  font-weight: 700; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  height: 58px;
  transition: background .15s;
}
.module:hover .module-num { background: var(--accent-2); }
.module-body {
  padding: 10px 14px;
  display: flex; flex-direction: column; gap: 2px;
  min-width: 0;
}
.module-title { font-size: var(--font-13); font-weight: 600; line-height: 1.25; }
.module-sub   { font-size: var(--font-11); color: var(--text-dim); line-height: 1.3; }
.module-chev  {
  padding-right: 14px;
  color: var(--text-muted);
  font-size: 18px;
  opacity: 0;
  transition: opacity .15s, transform .15s;
}
.module:hover .module-chev { opacity: 1; transform: translateX(2px); }

.chip {
  display: inline-block;
  font-size: 10px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.8px;
  padding: 2px 7px;
  border-radius: 2px;
  margin-left: 4px;
}
.chip-ok   { background: rgba(34,197,94,0.18);  color: var(--success); }
.chip-warn { background: rgba(245,158,11,0.18); color: var(--warning); }
.chip-crit { background: rgba(239,68,68,0.22);  color: var(--danger);  }

/* 7.3 split pages (map on top, panels below) */
.main-split {
  grid-area: main;
  display: grid;
  grid-template-rows: minmax(320px, 55%) 1fr;
  overflow: hidden;
}
.split-top {
  position: relative;
  overflow: hidden;
  background: #0a0f1a;
  border-bottom: 1px solid var(--border-strong);
}
.split-bottom {
  overflow-y: auto;
  padding: var(--space-5);
  background: var(--bg-app);
}
.split-bottom > .page-head {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
}
.split-bottom > .page-head h1 {
  font-size: var(--font-18);
  font-weight: 600;
}
.split-bottom > .page-head p { margin: 2px 0 0; font-size: var(--font-12); color: var(--text-dim); }

/* 7.4 content pages (panel grid, no map) */
.content-area {
  grid-area: main;
  overflow-y: auto;
  padding: var(--space-5);
  background: var(--bg-app);
}
.content-area > .page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}
.content-area > .page-head h1 {
  font-size: var(--font-22);
  font-weight: 600;
  line-height: 1.15;
}
.content-area > .page-head p {
  margin: 4px 0 0;
  color: var(--text-dim);
  font-size: var(--font-13);
}

/* 8. Panel system -------------------------------------------- */
.panel,
.metric-card,
.status-card,
.info-card,
.rule-card,
.wan-card,
.table-wrap {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}
.panel-header {
  display: flex; justify-content: space-between; align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border);
}
.panel-title { font-size: var(--font-16); font-weight: 500; margin: 0; }
.panel-copy  { font-size: var(--font-12); color: var(--text-dim); margin: 4px 0 0; }
.panel-body  { padding: var(--space-5); }
.panel-body.list { display: grid; gap: var(--space-3); }

.stack     { display: grid; gap: var(--space-5); }
.two-col   { display: grid; grid-template-columns: 1.5fr 0.9fr; gap: var(--space-5); }
.three-col { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: var(--space-5); }
.four-col  { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: var(--space-4); }

.grid-main {
  display: grid;
  grid-template-columns: 1.5fr 0.95fr;
  gap: var(--space-5);
}
.inline-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3);
}

/* 9. KPIs, metrics, badges, tables --------------------------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: var(--space-3);
}
.metric-card,
.status-card,
.info-card,
.rule-card,
.wan-card {
  padding: var(--space-4);
}
.stat-label, .label, .metric-sub ~ .label {
  font-size: var(--font-11);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}
.metric-value, .stat-value {
  margin-top: var(--space-2);
  font-size: var(--font-22);
  font-weight: 700;
  color: var(--text);
}
.metric-sub, .stat-sub {
  margin-top: var(--space-1);
  color: var(--text-dim);
  font-size: var(--font-12);
}
.list-row    { padding: var(--space-4); }
.list-title  { margin: 0 0 4px; font-size: var(--font-14); font-weight: 600; color: var(--text); }
.list-meta   { margin: 0; font-size: var(--font-13); color: var(--text-dim); }

.badge {
  display: inline-flex; align-items: center; gap: var(--space-1);
  padding: 5px 10px;
  border-radius: 999px;
  font-size: var(--font-11);
  font-weight: 500;
  border: 1px solid transparent;
}
.badge-info    { background: rgba(14,165,233,0.12); color: #7dd3fc; border-color: rgba(14,165,233,0.24); }
.badge-success { background: rgba(34,197,94,0.12);  color: #86efac; border-color: rgba(34,197,94,0.24); }
.badge-warning { background: rgba(245,158,11,0.12); color: #fcd34d; border-color: rgba(245,158,11,0.24); }
.badge-danger  { background: rgba(239,68,68,0.12);  color: #fca5a5; border-color: rgba(239,68,68,0.24); }

.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
  padding: 14px var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.table th {
  color: var(--text-muted);
  font-size: var(--font-11);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
  background: rgba(0,0,0,0.15);
}
.table td       { color: var(--text); font-size: var(--font-14); }
.table tr:last-child td { border-bottom: 0; }
.table tr:hover td { background: rgba(14,165,233,0.04); }

.progress {
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  overflow: hidden;
  margin-top: var(--space-2);
}
.progress span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.chart-placeholder {
  height: 240px;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(148,163,184,0.24);
  background:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 54px 54px;
  display: grid;
  place-items: center;
  color: var(--text-muted);
  font-size: var(--font-13);
  padding: var(--space-4);
  text-align: center;
}

/* Inline info bar shown above map on some pages */
.context-bar {
  position: absolute;
  top: 18px; left: 18px;
  z-index: 9;
  display: flex; align-items: center; gap: var(--space-3);
  background: rgba(11,18,32,0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.35);
  max-width: calc(100% - 400px);
}
.context-bar .label { color: var(--text-dim); font-size: 10px; }
.context-bar strong { color: #fff; font-size: var(--font-13); font-weight: 600; }

/* 10. Responsive -------------------------------------------- */
@media (max-width: 1280px) {
  .kpi-grid  { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .four-col  { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 1100px) {
  .right-overlay { width: 320px; }
  .grid-main, .two-col, .three-col {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 820px) {
  .app-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "topbar"
      "main";
  }
  .sidebar       { display: none; }  /* hook an off-canvas toggle when needed */
  .page-context  { display: none; }
  .topbar-tab    { padding: 0 14px; font-size: 12px; }
  .right-overlay {
    top: auto; left: 12px; right: 12px; bottom: 12px;
    width: auto;
    max-height: 48vh;
  }
  .context-bar   { max-width: calc(100% - 36px); }
  .login-shell   { grid-template-columns: 1fr; }
  .login-hero    { min-height: 320px; }
}

/* 11. Scrollbars -------------------------------------------- */
.sidebar::-webkit-scrollbar,
.right-overlay::-webkit-scrollbar,
.content-area::-webkit-scrollbar { width: 6px; height: 6px; }
.sidebar::-webkit-scrollbar-thumb,
.right-overlay::-webkit-scrollbar-thumb,
.content-area::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
}