/* AdBudget Manager — design system (CSS uniquement) */
:root {
    /* Marque : slate + indigo */
    --ad-bg-app: #f0f2f5;
    --ad-bg-elevated: #ffffff;
    --ad-surface: #f8fafc;
    --ad-sidebar: #0f172a;
    --ad-sidebar-border: rgba(255, 255, 255, 0.06);
    --ad-sidebar-muted: #94a3b8;
    --ad-accent: #4f46e5;
    --ad-accent-dim: rgba(79, 70, 229, 0.12);
    --ad-accent-hover: #4338ca;
    --ad-text: #0f172a;
    --ad-text-secondary: #64748b;
    --ad-border: #e2e8f0;
    --ad-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
    --ad-shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
    --ad-radius: 0.75rem;
    --ad-radius-sm: 0.5rem;
    --ad-font: "DM Sans", system-ui, -apple-system, sans-serif;
    /* Bootstrap 5.3 */
    --bs-body-font-family: var(--ad-font);
    --bs-primary: #4f46e5;
    --bs-primary-rgb: 79, 70, 229;
    --bs-link-color: #4f46e5;
    --bs-link-hover-color: #4338ca;
    --bs-border-radius: 0.5rem;
    --bs-border-radius-lg: 0.75rem;
}

html {
    font-family: var(--ad-font);
    -webkit-font-smoothing: antialiased;
}

body {
    color: var(--ad-text);
}

/* Login */
body.auth-body {
    min-height: 100vh;
    background:
        radial-gradient(1200px 600px at 80% -10%, rgba(79, 70, 229, 0.18) 0%, transparent 50%),
        radial-gradient(800px 400px at -10% 100%, rgba(14, 165, 233, 0.12) 0%, transparent 45%),
        linear-gradient(165deg, #0f172a 0%, #1e293b 45%, #0f172a 100%);
    color: var(--ad-text);
}

.auth-bg {
    min-height: 100vh;
    width: 100%;
    padding: 1.25rem;
    align-items: center;
}

.auth-card {
    border: none;
    border-radius: var(--ad-radius);
    overflow: hidden;
    background: var(--ad-bg-elevated);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
}

.auth-card::before {
    content: "";
    display: block;
    height: 4px;
    background: linear-gradient(90deg, #4f46e5, #0ea5e9);
}

.auth-card-max {
    max-width: 26rem;
}

.auth-hero {
    text-align: center;
}

/* Logo app */
.adbrand-icon {
    width: 3.25rem;
    height: 3.25rem;
    background: linear-gradient(135deg, #4f46e5 0%, #6366f1 55%, #0ea5e9 100%);
    color: #fff;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.45);
}

.adbrand-icon-sm {
    width: 2.5rem;
    height: 2.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.adbrand-icon--warn {
    background: linear-gradient(135deg, #b45309 0%, #ea580c 100%);
    box-shadow: 0 4px 14px rgba(180, 83, 9, 0.45);
    color: #fff;
}

.lucide-icon {
    width: 1.2rem;
    height: 1.2rem;
    stroke-width: 2;
}

.adbrand-icon .lucide-icon,
.adbrand-icon-sm .lucide-icon {
    width: 1.35rem;
    height: 1.35rem;
}

/* Coquille app */
.app-shell {
    min-height: 100vh;
    background: var(--ad-bg-app);
}

.app-admin .app-sidebar,
.app-client .app-sidebar {
    min-width: 15.5rem;
    max-width: 15.5rem;
    background: var(--ad-sidebar);
    color: #e2e8f0;
    border-right: 1px solid var(--ad-sidebar-border);
    padding: 1.25rem 1rem 1.25rem 1.25rem;
}

.app-client .app-sidebar,
.app-sidebar-client {
    background: linear-gradient(180deg, #0c1929 0%, #0f172a 100%);
}

.app-sidebar .navbar-brand {
    padding: 0.25rem 0 0.5rem 0;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--ad-sidebar-border);
}

.app-sidebar .navbar-brand span.text-white {
    font-size: 0.95rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.app-nav-section {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #64748b;
    margin: 0.5rem 0.5rem 0.35rem;
    font-weight: 600;
}

.app-nav-link {
    color: var(--ad-sidebar-muted);
    text-decoration: none;
    border-radius: var(--ad-radius-sm);
    padding: 0.5rem 0.75rem;
    font-size: 0.925rem;
    font-weight: 500;
    transition: color 0.15s, background 0.15s, transform 0.1s;
    border: 1px solid transparent;
}

.app-nav-link:hover,
.app-nav-link:focus {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.05);
}

.app-nav-link--active {
    color: #fff;
    background: var(--ad-accent-dim);
    border-color: rgba(79, 70, 229, 0.35);
}

.app-nav-link--active .lucide-icon {
    color: #a5b4fc;
}

.app-main {
    min-width: 0;
    background: var(--ad-bg-app);
}

.app-topbar {
    background: var(--ad-bg-elevated);
    min-height: 3.5rem;
    box-shadow: var(--ad-shadow);
    border-bottom: 1px solid var(--ad-border);
    z-index: 10;
    position: sticky;
    top: 0;
    padding: 0.75rem 1.25rem;
}

.app-topbar-title {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--ad-text);
    line-height: 1.3;
    margin: 0;
}

.app-user-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem 0.35rem 0.4rem;
    background: var(--ad-surface);
    border: 1px solid var(--ad-border);
    border-radius: 2rem;
    font-size: 0.8rem;
    color: var(--ad-text-secondary);
    max-width: 14rem;
}

.app-user-pill .lucide-icon {
    width: 1rem;
    height: 1rem;
    color: var(--ad-accent);
    flex-shrink: 0;
}

.app-user-pill span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-content {
    background:
        linear-gradient(180deg, rgba(248, 250, 252, 0.5) 0%, transparent 120px);
    min-height: calc(100vh - 3.5rem);
    padding: 1.25rem 1.25rem 2rem;
}

@media (min-width: 992px) {
    .app-content {
        padding: 1.5rem 1.75rem 2.5rem;
    }
}

/* Cartes & KPI */
.kpi-card {
    border: 1px solid var(--ad-border);
    border-radius: var(--ad-radius);
    background: var(--ad-bg-elevated);
    box-shadow: var(--ad-shadow);
    transition: box-shadow 0.2s, border-color 0.2s;
}

.kpi-card:hover {
    box-shadow: var(--ad-shadow-md);
    border-color: #cbd5e1;
}

.chart-canvas-tight {
    max-height: 280px;
}

.chart-line-minh {
    min-height: 220px;
}

.chart-bar-maxh {
    max-height: 320px;
}

/* Fiche marque */
.scroll-margin-top {
    scroll-margin-top: 5rem;
}

.brand-page-subnav .btn {
    border-radius: 2rem;
    font-size: 0.8125rem;
    font-weight: 500;
    border-color: #cbd5e1;
    color: var(--ad-text-secondary);
}

.brand-page-subnav .btn:hover {
    border-color: var(--ad-accent);
    color: var(--ad-accent);
    background: #fff;
}

.brand-plat-card {
    border: 1px solid var(--ad-border);
    border-radius: var(--ad-radius);
    background: #fff;
    box-shadow: var(--ad-shadow);
}

/* Formulaires in-app (hors page login isolée) */
.app-content .form-control,
.app-content .form-select {
    border-color: #cbd5e1;
    font-size: 0.9375rem;
}

.app-content .form-control:focus,
.app-content .form-select:focus {
    border-color: #a5b4fc;
    box-shadow: 0 0 0 0.2rem rgba(79, 70, 229, 0.12);
}

.app-content .form-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--ad-text-secondary);
    margin-bottom: 0.35rem;
}

.app-content .btn-primary {
    font-weight: 500;
    padding: 0.45rem 1rem;
    box-shadow: 0 1px 2px rgba(79, 70, 229, 0.25);
}

.app-content .btn-sm {
    font-weight: 500;
    border-radius: var(--ad-radius-sm);
}

/* En-têtes de pages listes (toolbar) */
.app-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1rem;
    margin-bottom: 1.25rem;
}

.app-toolbar p {
    font-size: 0.9rem;
    color: var(--ad-text-secondary);
    margin: 0;
    max-width: 36rem;
    line-height: 1.45;
}

/* Pages d’erreur */
.app-error-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    text-align: center;
    background: var(--ad-bg-app);
}

.app-error-code {
    font-size: clamp(3rem, 8vw, 4.5rem);
    font-weight: 700;
    color: #e2e8f0;
    line-height: 1;
    letter-spacing: -0.04em;
}

/* Responsive: sidebar + grille nav */
@media (max-width: 991.98px) {
    .app-admin .app-sidebar,
    .app-client .app-sidebar {
        max-width: 100%;
        min-width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--ad-sidebar-border);
    }

    .app-sidebar .nav.flex-column {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.25rem;
    }

    .app-sidebar .mt-auto {
        margin-top: 0.5rem;
        padding-top: 0.5rem;
        border-top: 1px solid var(--ad-sidebar-border);
    }

    .app-sidebar .mt-auto .app-nav-link {
        grid-column: 1 / -1;
    }
}