/* ==========================================================================
   PatriotAI — Design system
   Plateforme d'identité souveraine du Cameroun — esthétique "centre de
   commandement cyber" : sombre, précise, institutionnelle, futuriste.
   Aucune dépendance externe (police système, pas de CDN) : le portail doit
   pouvoir être présenté hors-ligne / sur réseau instable.
   ========================================================================== */

:root {
  --bg-void: #04070d;
  --bg-base: #070b14;
  --bg-panel: #0c1220;
  --bg-panel-2: #101829;
  --bg-elevated: #131d31;
  --border-subtle: rgba(148, 178, 224, 0.14);
  --border-strong: rgba(148, 178, 224, 0.28);

  --text-primary: #eef3fb;
  --text-secondary: #a9b8d0;
  --text-muted: #6c7b96;

  /* Couleurs du drapeau camerounais, utilisées en accents institutionnels */
  --cm-green: #00843d;
  --cm-green-glow: #17c76b;
  --cm-red: #e11d34;
  --cm-yellow: #fcd116;

  --accent: #17c76b;
  --accent-2: #2ee6a6;
  --accent-blue: #3b82f6;
  --danger: #f04455;
  --warning: #fcd116;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-glow: 0 0 0 1px var(--border-subtle), 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --font-sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

:root[data-theme="light"] {
  --bg-void: #f4f6fb;
  --bg-base: #eef1f8;
  --bg-panel: #ffffff;
  --bg-panel-2: #f7f9fd;
  --bg-elevated: #ffffff;
  --border-subtle: rgba(20, 30, 60, 0.1);
  --border-strong: rgba(20, 30, 60, 0.18);
  --text-primary: #0d1526;
  --text-secondary: #3d4a63;
  --text-muted: #7280974;
  --shadow-glow: 0 0 0 1px var(--border-subtle), 0 20px 50px -25px rgba(20, 30, 60, 0.25);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg-void: #f4f6fb;
    --bg-base: #eef1f8;
    --bg-panel: #ffffff;
    --bg-panel-2: #f7f9fd;
    --bg-elevated: #ffffff;
    --border-subtle: rgba(20, 30, 60, 0.1);
    --border-strong: rgba(20, 30, 60, 0.18);
    --text-primary: #0d1526;
    --text-secondary: #3d4a63;
    --text-muted: #727280;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(ellipse 1200px 700px at 15% -10%, rgba(23, 199, 107, 0.10), transparent 55%),
              radial-gradient(ellipse 900px 600px at 100% 0%, rgba(59, 130, 246, 0.10), transparent 50%),
              var(--bg-void);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
code, pre, .mono { font-family: var(--font-mono); }

/* ---------- Grille de fond "circuit" décorative ---------- */
.grid-backdrop {
  position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
  background-image:
    linear-gradient(var(--border-subtle) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, black 40%, transparent 90%);
  opacity: .5;
}

/* ---------- Topbar / bandeau institutionnel ---------- */
.gov-bar {
  background: linear-gradient(90deg, var(--cm-green) 0 33.33%, var(--cm-red) 33.33% 66.66%, var(--cm-yellow) 66.66% 100%);
  height: 4px; width: 100%;
}
.top-notice {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 12.5px;
  color: var(--text-muted);
}
.top-notice .container { display: flex; justify-content: space-between; align-items: center; padding-top: 8px; padding-bottom: 8px; flex-wrap: wrap; gap: 6px; }
.top-notice strong { color: var(--text-secondary); }

/* ---------- Navigation ---------- */
.navbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg-base) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: .2px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(145deg, var(--accent), var(--accent-blue));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 24px -4px rgba(23, 199, 107, .65);
}
.brand-mark svg { width: 19px; height: 19px; }
.brand small { display: block; font-size: 10.5px; font-weight: 500; color: var(--text-muted); letter-spacing: .4px; }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 14.5px; color: var(--text-secondary); font-weight: 500; transition: color .15s; }
.nav-links a:hover { color: var(--accent-2); }
.nav-cta { display: flex; align-items: center; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 10px; font-weight: 600; font-size: 14.5px;
  border: 1px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s, border-color .15s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(135deg, var(--accent), #0ea866); color: #012913; box-shadow: 0 8px 24px -8px rgba(23,199,107,.55); }
.btn-primary:hover { box-shadow: 0 10px 30px -6px rgba(23,199,107,.7); }
.btn-ghost { background: transparent; border-color: var(--border-strong); color: var(--text-primary); }
.btn-ghost:hover { border-color: var(--accent-2); color: var(--accent-2); }
.btn-block { width: 100%; }
.btn-lg { padding: 14px 26px; font-size: 15.5px; }
.btn-danger { background: var(--danger); color: white; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 96px 0 80px; overflow: hidden; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(23, 199, 107, .1); border: 1px solid rgba(23,199,107,.35);
  color: var(--accent-2); font-size: 12.5px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase;
  padding: 7px 14px; border-radius: 999px; margin-bottom: 24px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.hero h1 { font-size: clamp(34px, 5vw, 58px); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 22px; font-weight: 800; max-width: 820px; }
.hero h1 .grad { background: linear-gradient(135deg, var(--accent-2), var(--accent-blue)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 18px; color: var(--text-secondary); max-width: 640px; margin: 0 0 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }

.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border-subtle); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); overflow: hidden; }
.hero-stats .stat { background: var(--bg-panel); padding: 20px 18px; }
.hero-stats .stat .n { font-size: 26px; font-weight: 800; color: var(--text-primary); }
.hero-stats .stat .n span { color: var(--accent-2); }
.hero-stats .stat .l { font-size: 12.5px; color: var(--text-muted); margin-top: 4px; }

/* ---------- Sections ---------- */
.section { padding: 80px 0; position: relative; }
.section-head { max-width: 660px; margin: 0 auto 52px; text-align: center; }
.section-head .eyebrow { margin-left: auto; margin-right: auto; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); margin: 0 0 14px; font-weight: 800; letter-spacing: -.01em; }
.section-head p { color: var(--text-secondary); font-size: 16px; }

.card { background: linear-gradient(180deg, var(--bg-panel-2), var(--bg-panel)); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 26px; box-shadow: var(--shadow-glow); }
.card:hover { border-color: var(--border-strong); }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; } .hero-stats { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } .nav-links { display: none; } .hero-actions{flex-direction:column} }

.feature-icon { width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.feature-icon svg { width: 22px; height: 22px; }
.feature-icon.green { background: rgba(23,199,107,.12); color: var(--accent-2); }
.feature-icon.blue { background: rgba(59,130,246,.12); color: #7dabfb; }
.feature-icon.red { background: rgba(225,29,52,.12); color: #ff7c8a; }
.feature-icon.yellow { background: rgba(252,209,22,.12); color: var(--cm-yellow); }

.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--text-secondary); font-size: 14.5px; }

/* ---------- Architecture / flow diagram ---------- */
.flow { display: flex; align-items: stretch; gap: 0; flex-wrap: wrap; }
.flow-step { flex: 1; min-width: 200px; background: var(--bg-panel); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 22px; position: relative; }
.flow-step .step-num { font-family: var(--font-mono); font-size: 12px; color: var(--accent-2); margin-bottom: 10px; letter-spacing: 1px; }
.flow-arrow { display: flex; align-items: center; justify-content: center; width: 44px; color: var(--text-muted); flex-shrink: 0; }
@media (max-width: 900px) { .flow { flex-direction: column; } .flow-arrow { width: 100%; height: 30px; transform: rotate(90deg); } }

/* ---------- Badges / status ---------- */
.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; letter-spacing: .2px; }
.badge-green { background: rgba(23,199,107,.14); color: var(--accent-2); border: 1px solid rgba(23,199,107,.3); }
.badge-red { background: rgba(240,68,85,.14); color: #ff8b96; border: 1px solid rgba(240,68,85,.3); }
.badge-yellow { background: rgba(252,209,22,.14); color: var(--cm-yellow); border: 1px solid rgba(252,209,22,.3); }
.badge-grey { background: rgba(148,178,224,.1); color: var(--text-secondary); border: 1px solid var(--border-subtle); }

/* ---------- Code block ---------- */
.code-window { background: #060a12; border: 1px solid var(--border-subtle); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-glow); }
.code-window .code-titlebar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border-subtle); }
.code-window .code-titlebar .dot { width: 10px; height: 10px; border-radius: 50%; }
.code-window pre { margin: 0; padding: 20px; overflow-x: auto; font-size: 13.2px; line-height: 1.65; color: #cdeedd; }
.code-window .tag { color: #ff9a9a; } .code-window .str { color: #ffd479; } .code-window .kw { color: #82e0ff; } .code-window .cm { color: #6c7b96; }

/* ---------- Tables (docs API) ---------- */
table.api-table { width: 100%; border-collapse: collapse; font-size: 14px; }
table.api-table th { text-align: left; color: var(--text-muted); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: .4px; padding: 10px 14px; border-bottom: 1px solid var(--border-strong); }
table.api-table td { padding: 12px 14px; border-bottom: 1px solid var(--border-subtle); color: var(--text-secondary); vertical-align: top; }
table.api-table td code { background: var(--bg-elevated); padding: 2px 6px; border-radius: 5px; font-size: 12.5px; color: var(--accent-2); }
.table-wrap { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); }
.table-wrap table { margin: 0; }
.table-wrap th:first-child, .table-wrap td:first-child { padding-left: 18px; }

/* ---------- Forms ---------- */
.form-panel { max-width: 620px; margin: 0 auto; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--text-secondary); margin-bottom: 7px; }
.field .hint { font-size: 12.5px; color: var(--text-muted); margin-top: 6px; }
.field input[type=text], .field input[type=email], .field textarea, .field select, .field input[type=password] {
  width: 100%; background: var(--bg-panel); border: 1px solid var(--border-strong); border-radius: 10px;
  padding: 12px 14px; color: var(--text-primary); font-size: 14.5px; font-family: var(--font-sans);
  transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(23,199,107,.18); }
.field .errorlist { list-style: none; margin: 8px 0 0; padding: 0; color: var(--danger); font-size: 13px; }
.field .errorlist li::before { content: "⚠ "; }

.alert { border-radius: var(--radius-sm); padding: 14px 16px; font-size: 14px; margin-bottom: 18px; border: 1px solid; }
.alert-success { background: rgba(23,199,107,.1); border-color: rgba(23,199,107,.35); color: var(--accent-2); }
.alert-error { background: rgba(240,68,85,.1); border-color: rgba(240,68,85,.35); color: #ff8b96; }
.alert-info { background: rgba(59,130,246,.1); border-color: rgba(59,130,246,.35); color: #8fb8fb; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--border-subtle); padding: 56px 0 28px; margin-top: 40px; background: var(--bg-base); }
footer .foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
footer h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); margin: 0 0 14px; }
footer ul { list-style: none; margin: 0; padding: 0; }
footer li { margin-bottom: 10px; }
footer a { color: var(--text-secondary); font-size: 14px; }
footer a:hover { color: var(--accent-2); }
.foot-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; padding-top: 24px; border-top: 1px solid var(--border-subtle); font-size: 12.5px; color: var(--text-muted); }
.flag-strip { display: inline-flex; height: 10px; width: 26px; border-radius: 2px; overflow: hidden; }
.flag-strip span { flex: 1; }
@media (max-width: 800px) { footer .foot-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- Auth / Dashboard shell ---------- */
.auth-shell { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 40px 20px; position: relative; }
.auth-card { width: 100%; max-width: 420px; background: var(--bg-panel); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 38px 34px; box-shadow: var(--shadow-glow); position: relative; z-index: 1; }
.auth-card .brand { justify-content: center; margin-bottom: 26px; }

.app-shell { display: flex; min-height: 100vh; }
.sidebar { width: 264px; flex-shrink: 0; background: var(--bg-panel); border-right: 1px solid var(--border-subtle); padding: 22px 16px; display: flex; flex-direction: column; }
.sidebar .brand { padding: 0 8px; margin-bottom: 30px; }
.side-link { display: flex; align-items: center; gap: 11px; padding: 10px 12px; border-radius: 9px; color: var(--text-secondary); font-size: 14px; font-weight: 500; margin-bottom: 3px; }
.side-link svg { width: 17px; height: 17px; flex-shrink: 0; }
.side-link:hover { background: var(--bg-elevated); color: var(--text-primary); }
.side-link.active { background: rgba(23,199,107,.12); color: var(--accent-2); }
.sidebar-foot { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--border-subtle); }
.main-content { flex: 1; min-width: 0; }
.topheader { display: flex; align-items: center; justify-content: space-between; padding: 18px 30px; border-bottom: 1px solid var(--border-subtle); background: color-mix(in srgb, var(--bg-base) 92%, transparent); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 20; }
.page-body { padding: 30px; }
.page-title { font-size: 22px; font-weight: 800; margin: 0 0 4px; }
.page-sub { color: var(--text-muted); font-size: 14px; margin: 0 0 26px; }

.stat-tile { background: var(--bg-panel); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 20px 22px; }
.stat-tile .label { font-size: 12.5px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .4px; margin-bottom: 8px; }
.stat-tile .value { font-size: 28px; font-weight: 800; }
.stat-tile .value.danger { color: var(--danger); }
.stat-tile .value.accent { color: var(--accent-2); }

.data-table { width: 100%; border-collapse: collapse; font-size: 13.8px; }
.data-table th { text-align: left; padding: 12px 16px; color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .3px; border-bottom: 1px solid var(--border-strong); }
.data-table td { padding: 13px 16px; border-bottom: 1px solid var(--border-subtle); color: var(--text-secondary); }
.data-table tr:hover td { background: var(--bg-panel-2); }
.panel { background: var(--bg-panel); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); overflow: hidden; }
.panel-head { padding: 18px 22px; border-bottom: 1px solid var(--border-subtle); display: flex; align-items: center; justify-content: space-between; }
.panel-head h3 { margin: 0; font-size: 15.5px; }
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }

.kbd { font-family: var(--font-mono); font-size: 12px; background: var(--bg-elevated); border: 1px solid var(--border-strong); border-bottom-width: 2px; padding: 2px 7px; border-radius: 6px; }