/* ============================================================
   RSN — Design System
   Identité : Bleu souveraineté · Or dignité (palette du logo)
   ============================================================ */

:root {
    --rsn-blue-900: #0b1a38;
    --rsn-blue-800: #10234a;
    --rsn-blue-700: #14306a;
    --rsn-blue-600: #1555af;
    --rsn-blue-500: #1860a8;
    --rsn-blue-400: #1878c0;
    --rsn-blue-100: #e8eef7;
    --rsn-blue-050: #f4f7fc;

    --rsn-gold:      #f0c030;
    --rsn-gold-dark: #c99913;
    --rsn-gold-soft: #fdf3d7;

    --rsn-ink:    #14202f;
    --rsn-muted:  #5c6b7e;
    --rsn-bg:     #f6f8fb;
    --rsn-danger: #c03030;

    --rsn-radius: 1rem;
    --rsn-radius-sm: 0.65rem;
    --rsn-shadow: 0 10px 34px rgba(11, 26, 56, 0.08);
    --rsn-shadow-lg: 0 24px 60px rgba(11, 26, 56, 0.18);
    --rsn-transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);

    --bs-primary: #1555af;
    --bs-primary-rgb: 21, 85, 175;
    --bs-success: #1860a8;
    --bs-success-rgb: 24, 96, 168;
    --bs-warning: #f0c030;
    --bs-warning-rgb: 240, 192, 48;
    --bs-danger: #c03030;
    --bs-danger-rgb: 192, 48, 48;
    --bs-info: #1878c0;
    --bs-info-rgb: 24, 120, 192;
}

/* Surcharge des composants Bootstrap pour neutraliser orange/vert */
.alert-success,
.text-bg-success { --bs-alert-bg: var(--rsn-blue-050); --bs-alert-border-color: rgba(24,96,168,0.35); --bs-alert-color: var(--rsn-blue-700); }
.alert-warning,
.text-bg-warning { --bs-alert-bg: var(--rsn-gold-soft); --bs-alert-border-color: rgba(240,192,48,0.5); --bs-alert-color: #7a5a00; }
.alert-danger,
.text-bg-danger { --bs-alert-bg: #fdeeee; --bs-alert-border-color: rgba(192,48,48,0.4); --bs-alert-color: #8a1f1f; }
.alert-info,
.text-bg-info { --bs-alert-bg: var(--rsn-blue-050); --bs-alert-border-color: rgba(24,120,192,0.35); --bs-alert-color: var(--rsn-blue-700); }

.badge.bg-success, .badge.text-bg-success { background: var(--rsn-blue-600) !important; }
.badge.bg-warning, .badge.text-bg-warning { background: var(--rsn-gold) !important; color: var(--rsn-blue-900) !important; }
.badge.bg-danger, .badge.text-bg-danger { background: var(--rsn-danger) !important; }
.badge.bg-info, .badge.text-bg-info { background: var(--rsn-blue-400) !important; }
.badge.bg-primary, .badge.text-bg-primary { background: var(--rsn-blue-600) !important; }

.text-success { color: var(--rsn-blue-600) !important; }
.text-warning { color: var(--rsn-gold-dark) !important; }
.text-danger { color: var(--rsn-danger) !important; }

.btn-success {
    --bs-btn-bg: var(--rsn-blue-600);
    --bs-btn-border-color: var(--rsn-blue-600);
    --bs-btn-hover-bg: var(--rsn-blue-700);
    --bs-btn-hover-border-color: var(--rsn-blue-700);
}
.btn-warning {
    --bs-btn-bg: var(--rsn-gold);
    --bs-btn-border-color: var(--rsn-gold);
    --bs-btn-color: var(--rsn-blue-900);
    --bs-btn-hover-bg: var(--rsn-gold-dark);
    --bs-btn-hover-border-color: var(--rsn-gold-dark);
    --bs-btn-hover-color: #fff;
}

/* ============================================================
   Base & typographie
   ============================================================ */
body {
    font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--rsn-ink);
    background: var(--rsn-bg);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6,
.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    letter-spacing: -0.015em;
}

::selection { background: var(--rsn-gold); color: var(--rsn-blue-900); }

/* ============================================================
   Couleurs utilitaires
   ============================================================ */
.text-rsn       { color: var(--rsn-blue-600) !important; }
.text-rsn-gold  { color: var(--rsn-gold-dark) !important; }
.text-ink       { color: var(--rsn-ink) !important; }
.text-muted-rsn { color: var(--rsn-muted) !important; }
.bg-rsn-blue    { background: var(--rsn-blue-700); }
.bg-rsn-soft    { background: var(--rsn-blue-100); }
.border-rsn-gold { border-color: var(--rsn-gold) !important; }

/* ============================================================
   Boutons
   ============================================================ */
.btn {
    border-radius: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    padding: 0.6rem 1.15rem;
    transition: all var(--rsn-transition);
}
.btn-lg { border-radius: 0.75rem; padding: 0.75rem 1.5rem; }

.btn-rsn {
    background: linear-gradient(135deg, var(--rsn-gold) 0%, var(--rsn-gold-dark) 100%);
    color: var(--rsn-blue-900);
    border: none;
    box-shadow: 0 6px 18px rgba(240, 192, 48, 0.35);
}
.btn-rsn:hover, .btn-rsn:focus {
    background: linear-gradient(135deg, var(--rsn-gold-dark) 0%, #a87e0e 100%);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(240, 192, 48, 0.45);
}

.btn-rsn-blue {
    background: linear-gradient(135deg, var(--rsn-blue-600), var(--rsn-blue-700));
    color: #fff;
    border: none;
    box-shadow: 0 6px 18px rgba(21, 85, 175, 0.3);
}
.btn-rsn-blue:hover, .btn-rsn-blue:focus {
    background: linear-gradient(135deg, var(--rsn-blue-500), var(--rsn-blue-600));
    color: #fff;
    transform: translateY(-2px);
}

.btn-outline-rsn {
    border: 1.5px solid var(--rsn-blue-600);
    color: var(--rsn-blue-600);
    background: transparent;
}
.btn-outline-rsn:hover, .btn-outline-rsn:focus {
    background: var(--rsn-blue-600);
    color: #fff;
    transform: translateY(-2px);
}

.btn-ghost-light {
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.55);
    background: transparent;
}
.btn-ghost-light:hover { background: rgba(255, 255, 255, 0.12); color: #fff; border-color: #fff; }

/* ============================================================
   Navbar
   ============================================================ */
.navbar-rsn {
    background: linear-gradient(90deg, var(--rsn-blue-900) 0%, var(--rsn-blue-800) 55%, var(--rsn-blue-700) 100%);
    border-bottom: 3px solid var(--rsn-gold);
    box-shadow: 0 4px 24px rgba(11, 26, 56, 0.3);
}
.navbar-rsn .navbar-brand { color: #fff; }
.navbar-rsn .navbar-brand span { font-family: 'Playfair Display', serif; font-weight: 800; letter-spacing: 0.05em; }
.navbar-rsn .nav-link {
    color: rgba(255, 255, 255, 0.88);
    font-weight: 500;
    transition: color 0.2s ease;
}
.navbar-rsn .nav-link-rsn {
    position: relative;
    padding: 0.5rem 0.9rem;
}
.navbar-rsn .nav-link-rsn::after {
    content: '';
    position: absolute;
    left: 0.9rem;
    right: 0.9rem;
    bottom: 0.1rem;
    height: 2px;
    background: var(--rsn-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
}
.navbar-rsn .nav-link-rsn:hover::after,
.navbar-rsn .nav-link-rsn.active::after { transform: scaleX(1); }
.navbar-rsn .nav-link:hover, .navbar-rsn .nav-link.active { color: var(--rsn-gold); }

/* ============================================================
   Page hero (vues intérieures)
   ============================================================ */
.page-hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 88% 15%, rgba(24, 120, 192, 0.4) 0%, transparent 45%),
        radial-gradient(circle at 10% 90%, rgba(240, 192, 48, 0.16) 0%, transparent 40%),
        linear-gradient(135deg, var(--rsn-blue-900) 0%, var(--rsn-blue-700) 60%, var(--rsn-blue-500) 100%);
    border-radius: var(--rsn-radius);
    border-bottom: 3px solid var(--rsn-gold);
    box-shadow: var(--rsn-shadow-lg);
    color: #fff;
}
.page-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.06) 1px, transparent 0);
    background-size: 26px 26px;
    pointer-events: none;
}
.page-hero h1 { color: #fff; }
.page-hero .crumb a { color: rgba(255, 255, 255, 0.7); text-decoration: none; }
.page-hero .crumb a:hover { color: var(--rsn-gold); }
.page-hero .crumb .sep { color: rgba(255, 255, 255, 0.4); margin: 0 0.5rem; }
.page-hero .crumb .current { color: var(--rsn-gold); }

/* ============================================================
   Hero accueil
   ============================================================ */
.hero-rsn {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 85% 15%, rgba(24, 120, 192, 0.42) 0%, transparent 48%),
        radial-gradient(circle at 12% 88%, rgba(240, 192, 48, 0.18) 0%, transparent 42%),
        linear-gradient(135deg, var(--rsn-blue-900) 0%, var(--rsn-blue-700) 55%, var(--rsn-blue-500) 100%);
    border: none;
    border-bottom: 4px solid var(--rsn-gold);
    border-radius: var(--rsn-radius);
    box-shadow: var(--rsn-shadow-lg);
    color: #fff;
}
.hero-rsn::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.06) 1px, transparent 0);
    background-size: 28px 28px;
    pointer-events: none;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(240, 192, 48, 0.16);
    border: 1px solid rgba(240, 192, 48, 0.55);
    color: var(--rsn-gold);
    padding: 0.4rem 1.1rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.hero-title .gold { color: var(--rsn-gold); }
.hero-slogan { color: rgba(255, 255, 255, 0.85); font-style: italic; font-family: 'Playfair Display', serif; }
.hero-sep { width: 64px; height: 3px; background: var(--rsn-gold); border-radius: 2px; }
.hero-icon {
    width: 88px;
    height: 88px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(240, 192, 48, 0.12);
    border: 2px solid rgba(240, 192, 48, 0.6);
    color: var(--rsn-gold);
    font-size: 2.4rem;
    box-shadow: 0 0 50px rgba(240, 192, 48, 0.28);
}

.stat-rsn {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--rsn-radius);
    backdrop-filter: blur(4px);
}
.stat-rsn .stat-value {
    font-family: 'Playfair Display', serif;
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--rsn-gold);
    line-height: 1;
}
.stat-rsn .stat-label {
    font-size: 0.75rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.72);
    margin-top: 0.3rem;
}

/* ============================================================
   Cards
   ============================================================ */
.card {
    border: 1px solid rgba(11, 26, 56, 0.06);
    border-radius: var(--rsn-radius);
    box-shadow: var(--rsn-shadow);
    transition: transform var(--rsn-transition), box-shadow var(--rsn-transition);
}
.card-hover:hover {
    transform: translateY(-6px);
    box-shadow: var(--rsn-shadow-lg);
}
.card .card-title { color: var(--rsn-blue-800); }

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--rsn-blue-100), #d5e3f7);
    color: var(--rsn-blue-600);
    font-size: 1.55rem;
}
.feature-icon.gold {
    background: linear-gradient(135deg, var(--rsn-gold-soft), #f7e7b0);
    color: var(--rsn-gold-dark);
}

/* ============================================================
   Section helpers
   ============================================================ */
.section-eyebrow {
    display: inline-block;
    color: var(--rsn-gold-dark);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}
.section-title { color: var(--rsn-blue-900); }

/* ============================================================
   CTA band
   ============================================================ */
.cta-rsn {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--rsn-blue-900), var(--rsn-blue-700));
    border: 1px solid rgba(240, 192, 48, 0.4);
    border-radius: var(--rsn-radius);
    box-shadow: var(--rsn-shadow-lg);
}
.cta-rsn::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 1px 1px, rgba(240, 192, 48, 0.1) 1px, transparent 0);
    background-size: 26px 26px;
    pointer-events: none;
}

/* ============================================================
   Formulaires
   ============================================================ */
.form-control, .form-select {
    border-radius: 0.65rem;
    border: 1px solid #d5dee9;
    padding: 0.65rem 0.9rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-control:focus, .form-select:focus {
    border-color: var(--rsn-blue-500);
    box-shadow: 0 0 0 0.22rem rgba(21, 85, 175, 0.12);
}
.form-label { font-weight: 600; font-size: 0.85rem; color: var(--rsn-blue-800); }

/* ============================================================
   Tables
   ============================================================ */
.table thead th {
    background: var(--rsn-blue-800);
    color: #fff;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border: none;
    white-space: nowrap;
}
.table thead th:first-child { border-radius: 0.55rem 0 0 0; }
.table thead th:last-child { border-radius: 0 0.55rem 0 0; }
.table tbody tr { transition: background 0.15s ease; }
.table tbody tr:hover { background: var(--rsn-blue-050); }

/* ============================================================
   Badges
   ============================================================ */
.badge { font-weight: 600; padding: 0.42em 0.75em; border-radius: 0.45rem; }

/* ============================================================
   Administration
   ============================================================ */
.admin-bg { background: #eef1f6; }

.admin-sidebar {
    background: linear-gradient(180deg, var(--rsn-blue-900) 0%, var(--rsn-blue-800) 100%);
    min-width: 248px;
    box-shadow: 4px 0 22px rgba(11, 26, 56, 0.16);
}
.admin-sidebar .admin-brand { color: #fff; }
.admin-sidebar .admin-brand .sub {
    color: var(--rsn-gold);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 700;
}
.admin-sidebar .admin-nav-link {
    color: rgba(255, 255, 255, 0.82);
    padding: 0.6rem 0.85rem;
    border-radius: 0.55rem;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.2s ease, color 0.2s ease;
}
.admin-sidebar .admin-nav-link:hover,
.admin-sidebar .admin-nav-link.active {
    background: rgba(240, 192, 48, 0.16);
    color: var(--rsn-gold);
}

.admin-stat-card {
    background: #fff;
    border: 1px solid rgba(11, 26, 56, 0.06);
    border-radius: var(--rsn-radius);
    box-shadow: var(--rsn-shadow);
    transition: transform var(--rsn-transition), box-shadow var(--rsn-transition);
}
.admin-stat-card:hover { transform: translateY(-4px); box-shadow: var(--rsn-shadow-lg); }
.admin-stat-card .stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--rsn-muted);
    font-weight: 600;
}
.admin-stat-card .stat-value {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--rsn-blue-800);
    line-height: 1.1;
}
.admin-stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--rsn-blue-100), #d5e3f7);
    color: var(--rsn-blue-600);
    font-size: 1.4rem;
}

.admin-page-head h3 { color: var(--rsn-blue-900); }

/* ============================================================
   Auth
   ============================================================ */
.auth-wrap {
    min-height: calc(100vh - 240px);
    display: flex;
    align-items: center;
}
.auth-card {
    border: 1px solid rgba(11, 26, 56, 0.06);
    border-radius: 1.1rem;
    box-shadow: var(--rsn-shadow-lg);
}

/* ============================================================
   Footer
   ============================================================ */
.footer-rsn {
    background: var(--rsn-blue-900);
    color: rgba(255, 255, 255, 0.78);
    border-top: 3px solid var(--rsn-gold);
}
.footer-rsn a { color: rgba(255, 255, 255, 0.68); text-decoration: none; transition: color 0.2s ease; }
.footer-rsn a:hover { color: var(--rsn-gold); }
.footer-rsn .f-title {
    color: var(--rsn-gold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.78rem;
    font-weight: 700;
}

/* ============================================================
   Empty state
   ============================================================ */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
}
.empty-state .empty-icon {
    width: 76px;
    height: 76px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--rsn-blue-100);
    color: var(--rsn-blue-600);
    font-size: 2rem;
}

/* ============================================================
   Animations
   ============================================================ */
.anim-fade-up {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.anim-fade-up.in-view,
.no-js .anim-fade-up {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 991.98px) {
    .admin-sidebar { min-width: 100%; }
    .hero-icon { width: 64px; height: 64px; font-size: 1.7rem; }
}

@media (prefers-reduced-motion: reduce) {
    .anim-fade-up { opacity: 1 !important; transform: none !important; transition: none !important; }
    .card, .btn { transition: none; }
}