/* ==========================================================================
   CHARTE GRAPHIQUE & DESIGN TOKENS - ELTC CONSULTING ERP
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Montserrat:wght@500;600;700;800&family=Poppins:wght@500;600;700&display=swap');

:root {
    /* Couleurs Principales & Structurelles */
    --color-primary: #1E3A8A;        /* Bleu Marine Corporate */
    --color-primary-dark: #172554;
    --color-primary-light: #2563EB;
    --color-accent: #0EA5E9;         /* Bleu Cyan / Ciel */
    --color-accent-hover: #0284C7;
    --color-text-main: #0F172A;
    --color-text-muted: #64748B;     /* Gris Acier / Neutre */
    --color-bg-app: #F8FAFC;         /* Fond Clair ERP */
    --color-bg-surface: #FFFFFF;     /* Fond Cartes & Tables */
    --color-border: #E2E8F0;         /* Bordures & Séparateurs */

    /* Couleurs de Statut ERP */
    --color-success: #10B981;        /* Succès */
    --color-warning: #F59E0B;        /* Attention */
    --color-danger: #EF4444;         /* Erreur / Danger */
    --color-info: #0EA5E9;           /* Information */

    /* Typographie */
    --font-heading: 'Montserrat', 'Poppins', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Rayon de bordure unifié */
    --radius-default: 8px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* Base */
body {
    font-family: var(--font-body);
    background-color: var(--color-bg-app);
    color: var(--color-text-main);
    margin: 0;
    padding: 0;
    font-size: 0.9375rem;
    line-height: 1.5;
}

h1, h2, h3, h4, h5, h6, .font-heading {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-weight: 700;
}

/* Wrapper principal */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* ==========================================================================
   SIDEBAR CORPORATE (Bleu Marine #1E3A8A)
   ========================================================================== */
.app-sidebar {
    width: 260px;
    background: linear-gradient(180deg, #1E3A8A 0%, #172554 100%);
    color: #FFFFFF;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 4px 0 15px rgba(0, 0, 0, 0.08);
}

.sidebar-brand {
    padding: 1.5rem 1rem 1.25rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: transparent !important;
}

.sidebar-logo-img {
    height: 52px;
    width: auto;
    max-width: 90%;
    object-fit: contain;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.3));
    transition: transform 0.25s ease;
}

.sidebar-logo-img:hover {
    transform: scale(1.04);
}

.sidebar-nav {
    padding: 1rem 0.75rem;
    flex: 1;
    overflow-y: auto;
}

.sidebar-category {
    font-size: 0.7rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.75px;
    padding: 0.85rem 0.75rem 0.35rem 0.75rem;
}

.nav-link-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    border-radius: var(--radius-default);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    margin-bottom: 2px;
    position: relative;
}

.nav-link-item i {
    font-size: 1.1rem;
    width: 22px;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.2s;
}

.nav-link-item:hover {
    color: #FFFFFF;
    background-color: rgba(255, 255, 255, 0.12);
}

.nav-link-item:hover i {
    color: var(--color-accent);
}

.nav-link-item.active {
    color: #FFFFFF;
    background-color: rgba(14, 165, 233, 0.2);
    font-weight: 600;
}

.nav-link-item.active i {
    color: var(--color-accent);
}

.nav-link-item.active::before {
    content: '';
    position: absolute;
    left: -0.75rem;
    top: 50%;
    transform: translateY(-50%);
    height: 70%;
    width: 4px;
    background-color: var(--color-accent);
    border-radius: 0 4px 4px 0;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(0, 0, 0, 0.15);
}

.user-profile-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: var(--color-accent);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

/* ==========================================================================
   MAIN CONTENT & HEADER
   ========================================================================== */
.app-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow-x: hidden;
}

.app-header {
    background-color: #FFFFFF;
    height: 68px;
    padding: 0 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 999;
}

.page-content {
    flex: 1;
    padding: 1.75rem;
}

/* Footer avec Mentions Légales */
.app-footer {
    background-color: #FFFFFF;
    border-top: 1px solid var(--color-border);
    padding: 1.25rem 1.75rem;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.app-footer .legal-badge {
    display: inline-block;
    padding: 2px 8px;
    background-color: var(--color-bg-app);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    margin: 2px 4px;
    font-weight: 500;
}

/* ==========================================================================
   CARTES & COMPOSANTS UI
   ========================================================================== */
.card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-default);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h5, .card-header h6 {
    margin: 0;
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-weight: 600;
}

.card-body {
    padding: 1.25rem;
}

/* KPI Cards */
.kpi-card {
    border-left: 4px solid var(--color-primary);
    transition: transform 0.2s, box-shadow 0.2s;
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.kpi-card.kpi-accent { border-left-color: var(--color-accent); }
.kpi-card.kpi-success { border-left-color: var(--color-success); }
.kpi-card.kpi-warning { border-left-color: var(--color-warning); }
.kpi-card.kpi-danger { border-left-color: var(--color-danger); }

.kpi-val {
    font-family: var(--font-heading);
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--color-text-main);
    line-height: 1.1;
}

.kpi-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-default);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.bg-primary-soft { background-color: rgba(30, 58, 138, 0.1); color: var(--color-primary); }
.bg-accent-soft { background-color: rgba(14, 165, 233, 0.1); color: var(--color-accent); }
.bg-success-soft { background-color: rgba(16, 185, 129, 0.1); color: var(--color-success); }
.bg-warning-soft { background-color: rgba(245, 158, 11, 0.1); color: var(--color-warning); }
.bg-danger-soft { background-color: rgba(239, 68, 68, 0.1); color: var(--color-danger); }

/* Boutons */
.btn {
    border-radius: var(--radius-default);
    font-weight: 500;
    padding: 0.55rem 1.1rem;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #FFFFFF;
}

.btn-primary:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #FFFFFF;
}

.btn-accent {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #FFFFFF;
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #FFFFFF;
}

.btn-outline-primary {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-outline-primary:hover {
    background-color: var(--color-primary);
    color: #FFFFFF;
}

/* Form Controls */
.form-control, .form-select {
    border-radius: var(--radius-default);
    border: 1px solid var(--color-border);
    padding: 0.55rem 0.85rem;
    font-size: 0.9rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

/* Tables */
.table {
    margin-bottom: 0;
    color: var(--color-text-main);
}

.table th {
    background-color: #F8FAFC;
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--color-border);
    padding: 0.75rem 1rem;
}

.table td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--color-border);
}

.table-hover tbody tr:hover {
    background-color: rgba(14, 165, 233, 0.04);
}

/* Badges */
.badge {
    border-radius: 6px;
    padding: 0.35rem 0.65rem;
    font-weight: 600;
    font-size: 0.75rem;
}

/* Interactive KPI Cards */
.kpi-card.kpi-clickable {
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    user-select: none;
}

.kpi-card.kpi-clickable:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -6px rgba(30, 58, 138, 0.15), 0 4px 10px -2px rgba(14, 165, 233, 0.12);
    border-color: var(--color-accent);
}

.kpi-card.kpi-clickable:active {
    transform: translateY(-1px);
}

.kpi-hint {
    font-size: 0.73rem;
    font-weight: 600;
    transition: color 0.2s ease;
}

.kpi-card.kpi-clickable:hover .kpi-hint {
    color: var(--color-accent) !important;
}

/* Drill-Down Section Navigation */
.drilldown-pills .nav-link {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--color-text-muted);
    border-radius: 8px;
    padding: 0.6rem 1.1rem;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.drilldown-pills .nav-link:hover {
    color: var(--color-primary);
    background-color: rgba(14, 165, 233, 0.08);
}

.drilldown-pills .nav-link.active {
    color: #FFFFFF;
    background: linear-gradient(135deg, var(--color-primary) 0%, #172554 100%);
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.25);
}

.drilldown-pills .nav-link .badge {
    transition: all 0.2s ease;
}

.drilldown-pills .nav-link.active .badge {
    background-color: var(--color-accent) !important;
    color: #FFFFFF !important;
}

/* Documents & Impressions */
@media print {
    .app-sidebar, .app-header, .app-footer, .no-print {
        display: none !important;
    }
    .page-content, .app-main {
        padding: 0 !important;
        margin: 0 !important;
    }
    .print-frame {
        border: 3px double var(--color-primary) !important;
        padding: 2.5rem !important;
        position: relative;
    }
}