/* ================================================================
   RAKIETA FLOTTE - Thème Transport & Gestion de véhicules
   Template professionnel dédié au transport et à la flotte
   ================================================================ */

:root {
    --transport-primary: #0f172a;
    --transport-primary-light: #1e293b;
    --transport-accent: #f97316;
    --transport-accent-hover: #ea580c;
    --transport-success: #059669;
    --transport-danger: #dc2626;
    --transport-warning: #d97706;
    --transport-info: #0284c7;
    --transport-sidebar-bg: #0f172a;
    --transport-sidebar-text: #f8fafc;
    --transport-sidebar-hover: rgba(249, 115, 22, 0.15);
    --transport-content-bg: #f1f5f9;
    --transport-card-bg: #ffffff;
    --transport-border: #e2e8f0;
    --transport-text: #334155;
    --transport-text-muted: #64748b;
    --sidebar-width: 260px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 0.9375rem;
    color: var(--transport-text);
    background: var(--transport-content-bg);
    line-height: 1.5;
    overflow-x: hidden;
}

/* ========== LAYOUT PRINCIPAL ========== */
.app-layout {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

/* ========== SIDEBAR (Menu gauche) ========== */
.app-sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background: var(--transport-sidebar-bg);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.12);
    transition: transform 0.25s ease, width 0.25s ease;
}

.app-sidebar-header {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    flex-shrink: 0;
}

.app-sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--transport-sidebar-text) !important;
}

.app-sidebar-brand:hover {
    color: var(--transport-sidebar-text) !important;
    opacity: 0.95;
}

.app-sidebar-brand-icon {
    width: 40px;
    height: 40px;
    background: var(--transport-accent);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: white;
    flex-shrink: 0;
}

.app-sidebar-brand-text {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--transport-sidebar-text) !important;
    letter-spacing: -0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.app-sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.75rem 0;
}

.app-sidebar-nav .nav-section {
    padding: 0.5rem 1rem;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(248, 250, 252, 0.5);
}

.app-sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    color: rgba(248, 250, 252, 0.85);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    border-left: 3px solid transparent;
    transition: all 0.15s ease;
    margin: 0 0.5rem;
    border-radius: 8px;
}

.app-sidebar-nav .nav-link:hover {
    background: var(--transport-sidebar-hover);
    color: var(--transport-sidebar-text);
    border-left-color: var(--transport-accent);
}

.app-sidebar-nav .nav-link.active {
    background: var(--transport-sidebar-hover);
    color: var(--transport-accent);
    border-left-color: var(--transport-accent);
}

.app-sidebar-nav .nav-link i {
    width: 22px;
    text-align: center;
    font-size: 1.1rem;
    opacity: 0.9;
}

.app-sidebar-nav .nav-item {
    position: relative;
}

.app-sidebar-nav .dropdown-toggle::after {
    margin-left: auto;
    font-size: 0.7rem;
    opacity: 0.7;
}

.app-sidebar-nav .dropdown-menu {
    background: var(--transport-primary-light);
    border: none;
    border-radius: 8px;
    padding: 0.25rem;
    margin: 0.25rem 0 0.25rem 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.app-sidebar-nav .dropdown-item {
    color: rgba(248, 250, 252, 0.85);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    border-radius: 6px;
}

.app-sidebar-nav .dropdown-item:hover {
    background: var(--transport-sidebar-hover);
    color: var(--transport-sidebar-text);
}

.app-sidebar-nav .dropdown-item i {
    width: 1.25rem;
    margin-right: 0.5rem;
    opacity: 0.8;
}

.app-sidebar-nav .dropdown-divider {
    border-color: rgba(255, 255, 255, 0.08);
    margin: 0.25rem 0;
}

.app-sidebar-footer {
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    flex-shrink: 0;
}

.app-sidebar-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    color: rgba(248, 250, 252, 0.9);
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background 0.15s ease;
}

.app-sidebar-user:hover {
    background: rgba(255, 255, 255, 0.08);
    color: white;
}

.app-sidebar-user i {
    font-size: 1.25rem;
    opacity: 0.9;
}

/* ========== ZONE CONTENU (Droite) ========== */
.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--transport-content-bg);
}

.app-content {
    flex: 1;
    padding: 1.5rem;
}

/* Messages flash */
.app-alerts {
    margin-bottom: 1rem;
}

.app-alerts .alert {
    border-radius: 10px;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* Contenu des pages */
.app-content main,
.app-content .content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
}

/* Cartes */
.app-content .card {
    border: 1px solid var(--transport-border);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.app-content .card-header {
    background: var(--transport-card-bg);
    border-bottom: 1px solid var(--transport-border);
    font-weight: 600;
    padding: 1rem 1.25rem;
    border-radius: 12px 12px 0 0;
}

.app-content .card-body {
    padding: 1.25rem;
}

/* Tables */
.app-content .table {
    font-size: 0.9375rem;
}

.app-content .table thead th {
    font-weight: 600;
    color: var(--transport-text);
    border-bottom: 2px solid var(--transport-border);
    padding: 0.875rem 1rem;
}

.app-content .table tbody td {
    padding: 0.875rem 1rem;
    vertical-align: middle;
}

/* Boutons */
.app-content .btn {
    font-weight: 500;
    border-radius: 8px;
    padding: 0.5rem 1rem;
}

.app-content .btn-primary {
    background: var(--transport-accent);
    border-color: var(--transport-accent);
}

.app-content .btn-primary:hover {
    background: var(--transport-accent-hover);
    border-color: var(--transport-accent-hover);
}

/* Footer */
.app-footer {
    padding: 1rem 1.5rem;
    background: var(--transport-card-bg);
    border-top: 1px solid var(--transport-border);
    font-size: 0.8125rem;
    color: var(--transport-text-muted);
    text-align: center;
}

/* ========== BOUTON MENU MOBILE ========== */
.app-sidebar-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 10px;
    background: var(--transport-sidebar-bg);
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    align-items: center;
    justify-content: center;
}

.app-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 999;
}

.app-sidebar-overlay.show {
    display: block;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 991.98px) {
    .app-sidebar {
        transform: translateX(-100%);
    }

    .app-sidebar.show {
        transform: translateX(0);
    }

    .app-main {
        margin-left: 0;
    }

    .app-sidebar-toggle {
        display: flex;
    }

    .app-content {
        padding: 1rem;
        padding-top: 4rem;
    }
}

@media (max-width: 575.98px) {
    .app-sidebar {
        width: 100%;
        max-width: 280px;
    }

    .app-sidebar-brand-text {
        font-size: 1rem;
    }
}

/* ========== UTILITAIRES ========== */
.action-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.action-buttons .btn {
    margin: 0;
}

/* Titres de page */
.app-page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--transport-primary);
    margin-bottom: 1rem;
}

.app-page-title i {
    margin-right: 0.5rem;
    color: var(--transport-accent);
}