:root {
  --color-primary: #1e3a8a;
  --color-primary-light: #3b5bdb;
  --color-accent: #f59e0b;
  --color-bg: #f7f8fb;
  --color-surface: #ffffff;
  --color-text: #1f2430;
  --color-text-muted: #6b7280;
  --color-border: #e2e5ec;
  --color-danger: #dc2626;
  --color-success: #16a34a;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.08);
  --shadow-md: 0 8px 24px rgba(16, 24, 40, 0.12);

  --font-base: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
}

a { color: var(--color-primary); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Nav ---------- */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-nav .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--color-primary);
}
.site-nav .brand-badge {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
}
.nav-actions { display: flex; gap: 12px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform .12s ease, box-shadow .12s ease, opacity .12s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-light); }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: rgba(30,58,138,0.06); }
.btn:disabled { opacity: .55; cursor: not-allowed; }

/* ---------- Hero ---------- */
.hero {
  padding: 90px 24px 70px;
  text-align: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(59,91,219,0.10), transparent 45%),
    radial-gradient(circle at 80% 0%, rgba(245,158,11,0.12), transparent 40%),
    var(--color-surface);
}
.hero .eyebrow {
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .8rem;
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 14px 0 18px;
  color: var(--color-text);
}
.hero p.lead {
  max-width: 640px;
  margin: 0 auto 30px;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 64px 24px; }
.section h2 {
  text-align: center;
  font-size: 1.7rem;
  margin-bottom: 8px;
}
.section .subtitle {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-top: 0; }
.card .icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(30,58,138,0.08);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 14px;
}

.site-footer {
  padding: 30px 24px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: .85rem;
  border-top: 1px solid var(--color-border);
}

/* ---------- Formulaire d'inscription ---------- */
.form-page {
  max-width: 820px;
  margin: 40px auto 80px;
  padding: 0 24px;
}
.form-page h1 { margin-bottom: 4px; }
.form-page .form-intro { color: var(--color-text-muted); margin-bottom: 30px; }

app-form-section {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}
app-form-section .section-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}
.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px 20px;
}
.field-grid .full { grid-column: 1 / -1; }

app-input, app-select, app-radio-group {
  display: block;
}
app-input label, app-select label, app-radio-group > .rg-label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}
app-input input,
app-select select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-family: inherit;
  background: #fff;
  color: var(--color-text);
}
app-input input:focus,
app-select select:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(59,91,219,0.15);
}
app-radio-group .rg-options {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
app-radio-group label.rg-option {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  font-size: .9rem;
  cursor: pointer;
}

.checkbox-line {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .88rem;
  color: var(--color-text-muted);
}

.form-submit-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 6px;
}

#form-result { margin-top: 18px; }

.alert {
  padding: 16px 18px;
  border-radius: var(--radius-md);
  font-size: .92rem;
}
.alert-error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--color-danger);
}
.alert-success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
}
.alert-success .dossier-number {
  display: inline-block;
  margin-top: 8px;
  font-family: monospace;
  font-size: 1.05rem;
  background: #fff;
  border: 1px dashed #16a34a;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
}

/* htmx loading indicator */
.htmx-indicator { display: none; }
.htmx-request .htmx-indicator { display: inline-flex; }
.htmx-request.btn { opacity: .75; pointer-events: none; }

@media (max-width: 640px) {
  .hero { padding: 60px 18px 50px; }
  app-form-section { padding: 18px; }
}

/* ---------- Admin ---------- */
.admin-layout {
  display: flex;
  min-height: calc(100vh - 66px);
}
.admin-sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: 24px 14px;
}
.admin-sidebar a {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  font-size: .92rem;
  margin-bottom: 4px;
}
.admin-sidebar a:hover,
.admin-sidebar a.active {
  background: rgba(30,58,138,0.08);
  color: var(--color-primary);
}
.admin-content {
  flex: 1;
  padding: 32px 28px;
  max-width: 1200px;
}
.admin-content h1 { margin-top: 0; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}
.stat-card { text-align: left; padding: 20px 22px; }
.stat-card .stat-value { font-size: 1.8rem; font-weight: 800; margin: 4px 0 2px; }
.stat-card .stat-label { color: var(--color-text-muted); font-size: .85rem; margin: 0; }

.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}
.chart-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
}
.chart-card h3 { margin-top: 0; font-size: 1rem; }

.filters-bar {
  display: flex;
  gap: 12px;
  align-items: end;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.filters-bar select {
  padding: 9px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 12px 14px;
  font-size: .9rem;
  border-bottom: 1px solid var(--color-border);
}
.data-table th {
  background: #f9fafc;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  font-size: .74rem;
  letter-spacing: .04em;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: #fafbff; }
.data-table a { font-weight: 600; text-decoration: none; }

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: .76rem;
  font-weight: 700;
  color: #fff;
}
.badge-soumis { background: #f59e0b; }
.badge-en_cours { background: #3b5bdb; }
.badge-pre_inscrit { background: #0ea5e9; }
.badge-valide { background: #16a34a; }
.badge-rejete { background: #dc2626; }
.badge-paye { background: #16a34a; }
.badge-impaye { background: #dc2626; }
.badge-partiel { background: #f59e0b; }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px 24px;
  margin-bottom: 10px;
}
.detail-grid dt {
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}
.detail-grid dd { margin: 0; font-weight: 600; }

.inline-form {
  display: flex;
  gap: 10px;
  align-items: end;
  flex-wrap: wrap;
  margin-top: 14px;
}
.inline-form select, .inline-form input {
  padding: 9px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
}

/* ---------- Admin : double sidebar (rail de modules + sous-menu) ---------- */
.admin-shell {
  display: flex;
  min-height: calc(100vh - 66px);
}
.admin-rail {
  width: 84px;
  flex-shrink: 0;
  background: var(--color-primary);
  padding: 18px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  overflow-y: auto;
}
.admin-rail a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 100%;
  padding: 10px 4px;
  border-radius: 10px;
  text-decoration: none;
  color: rgba(255,255,255,0.72);
  font-size: .62rem;
  line-height: 1.15;
  text-align: center;
}
.admin-rail a .rail-icon { font-size: 1.25rem; }
.admin-rail a:hover { background: rgba(255,255,255,0.10); color: #fff; }
.admin-rail a.active { background: rgba(255,255,255,0.18); color: #fff; font-weight: 700; }

.admin-submenu {
  width: 240px;
  flex-shrink: 0;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: 22px 16px;
  overflow-y: auto;
}
.admin-submenu h4 {
  font-size: .78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--color-text-muted);
  margin: 0 0 14px;
  padding: 0 8px;
}
.admin-submenu a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 9px 10px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--color-text);
  font-size: .87rem;
  margin-bottom: 2px;
}
.admin-submenu a:hover { background: #f4f5f9; }
.admin-submenu a.active {
  background: rgba(30,58,138,0.08);
  color: var(--color-primary);
  font-weight: 700;
}
.admin-submenu .soon-badge {
  font-size: .62rem;
  font-weight: 700;
  color: var(--color-text-muted);
  background: #eef0f5;
  padding: 2px 7px;
  border-radius: 999px;
  white-space: nowrap;
}

.admin-coming-soon {
  max-width: 640px;
  margin: 40px auto;
  text-align: center;
  padding: 40px 30px;
}
.admin-coming-soon .icon {
  width: 64px; height: 64px;
  margin: 0 auto 20px;
  font-size: 1.8rem;
}
.admin-coming-soon .rg-refs {
  display: inline-block;
  margin-top: 16px;
  font-family: monospace;
  font-size: .78rem;
  color: var(--color-text-muted);
  background: #f4f5f9;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
}

@media (max-width: 900px) {
  .admin-shell { flex-direction: column; }
  .admin-rail {
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    padding: 10px;
  }
  .admin-rail a { width: auto; flex-direction: row; padding: 8px 10px; }
  .admin-submenu { width: 100%; border-right: none; border-bottom: 1px solid var(--color-border); }
}

/* ---------- Messagerie ---------- */
.messaging-layout {
  display: flex;
  height: calc(100vh - 66px);
}
.messaging-sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: 18px 14px;
  overflow-y: auto;
}
.messaging-sidebar h4 {
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--color-text-muted);
  margin: 18px 0 6px;
}
.messaging-sidebar h4:first-child { margin-top: 0; }
.messaging-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.messaging-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  font-weight: 700;
}
.messaging-dm-form {
  display: flex;
  gap: 8px;
  padding: 12px 14px;
  border-top: 1px solid var(--color-border);
}
.messaging-dm-form input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: .82rem;
}
.messaging-composer {
  display: flex;
  gap: 10px;
  padding: 16px 22px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}
.messaging-composer input {
  flex: 1;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: inherit;
}
#messages-list {
  flex: 1;
  overflow-y: auto;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}