/* =========================================================
   Océane — Layout CSS
   Sidebar, header, grilles, structure des pages
   ========================================================= */

/* ===== App Container ===== */
.app {
    display: flex;
    min-height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    max-height: 100vh;
    background: var(--gradient-sidebar);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-sticky);
    transition: width var(--transition-base);
}

.sidebar-header {
    padding: var(--space-5) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-height: var(--header-height);
}
.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
}
.sidebar-logo .logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 0;
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    font-weight: var(--weight-bold);
    color: var(--color-bg-deep);
    flex-shrink: 0;
}
.sidebar-logo .logo-text {
    font-size: var(--text-xl);
    font-weight: var(--weight-bold);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.03em;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-4) var(--space-3);
    overflow-y: auto;
}
.sidebar-nav::-webkit-scrollbar {
    width: 4px;
}
.sidebar-nav::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(0, 229, 255, 0.2);
    border-radius: var(--radius-full);
}
.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 229, 255, 0.4);
}
.nav-section-title {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    padding: var(--space-4) var(--space-3) var(--space-2);
}
.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-3);
    margin-bottom: var(--space-1);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
}
.nav-item:hover {
    color: var(--color-text-primary);
    background: rgba(0, 229, 255, 0.05);
}
.nav-item.active {
    color: var(--color-accent-cyan);
    background: rgba(0, 229, 255, 0.1);
}
.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--color-accent-cyan);
    border-radius: var(--radius-full);
}
.nav-item .nav-icon {
    font-size: var(--text-lg);
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}
.nav-item .nav-badge {
    margin-left: auto;
    padding: 2px 8px;
    font-size: 10px;
    font-weight: var(--weight-bold);
    background: var(--color-accent-red);
    color: white;
    border-radius: var(--radius-full);
}

.sidebar-footer {
    padding: var(--space-4) var(--space-3);
    border-top: 1px solid var(--color-border);
}
.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}
.sidebar-user:hover {
    background: rgba(255, 255, 255, 0.03);
}
.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: var(--weight-bold);
    color: var(--color-accent-cyan);
    border: 2px solid var(--color-border);
    flex-shrink: 0;
}
.user-info {
    flex: 1;
    min-width: 0;
}
.user-name {
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.user-role {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    position: relative;
}

/* ===== Page Header ===== */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6) var(--space-8);
    border-bottom: 1px solid var(--color-border);
    background: rgba(10, 17, 40, 0.5);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}
.page-title {
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
}
.page-subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-top: var(--space-1);
}
.page-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* ===== Page Body ===== */
.page-body {
    padding: var(--space-8);
}

/* ===== Grid Layouts ===== */
.grid {
    display: grid;
    gap: var(--space-6);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

/* Stats grid: responsive */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-4);
}

/* ===== Login Page Layout ===== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.auth-page-content {
    position: relative;
    z-index: var(--z-base);
    width: 100%;
    display: flex;
    justify-content: center;
}
.auth-container {
    width: 100%;
    max-width: 440px;
    z-index: var(--z-base);
    margin: 0 auto;
    padding: var(--space-4);
}
.auth-card {
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-10);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.6s ease-out;
}
.auth-logo {
    text-align: center;
    margin-bottom: var(--space-8);
}
.auth-logo h1 {
    font-size: var(--text-4xl);
    font-weight: var(--weight-extrabold);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-2);
}
.auth-logo p {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}
.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}
.auth-footer a {
    color: var(--color-accent-cyan);
    font-weight: var(--weight-medium);
}

/* ===== Bouton hamburger + voile (mobile) ===== */
.sidebar-toggle {
    display: none; /* visible uniquement sous 768px */
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: calc(var(--z-sticky) + 2);
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    background: rgba(10, 16, 30, 0.92);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md, 8px);
    color: var(--color-accent-cyan, #00e5ff);
    cursor: pointer;
}
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    z-index: var(--z-sticky);
    background: rgba(0, 0, 0, 0.55);
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-5, .grid-6 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-base);
        z-index: calc(var(--z-sticky) + 1); /* au-dessus du voile */
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .sidebar-toggle {
        display: flex;
    }
    .sidebar-backdrop {
        display: block;
    }
    .main-content {
        margin-left: 0;
    }
    .page-header {
        padding: var(--space-4) var(--space-5);
    }
    .page-body {
        padding: var(--space-4) var(--space-4);
        padding-top: calc(42px + 20px); /* laisser la place au bouton hamburger */
    }
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ===== Starfield & SF Animations from Handoff Mockup ===== */
@keyframes ocStar {
    from { background-position: 0 0, 0 0, 0 0; }
    to { background-position: 0 -680px, 0 -420px, 0 -900px; }
}
@keyframes ocUp {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes ocPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

.oc-row {
    animation: ocUp 0.5s ease-out both;
}
.oc-d1 { animation-delay: 0.05s; }
.oc-d2 { animation-delay: 0.1s; }
.oc-d3 { animation-delay: 0.16s; }
.oc-d4 { animation-delay: 0.22s; }
.oc-d5 { animation-delay: 0.28s; }