/**
 * Design System — Noma (Mission 3 UI/UX)
 * Variables CSS, mode clair/sombre, composants
 */

/* ========== MODE CLAIR (défaut) ========== */
:root {
    /* Palette principale */
    --primary: #16a34a;
    --primary-hover: #15803d;
    --primary-light: #dcfce7;
    --primary-muted: rgba(22, 163, 74, 0.12);

    --success: #16a34a;
    --success-light: #dcfce7;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;

    /* Surfaces */
    --bg-body: #f8fafc;
    --bg-sidebar: #ffffff;
    --bg-header: rgba(255, 255, 255, 0.9);
    --bg-card: #ffffff;
    --bg-input: #ffffff;

    /* Bordures */
    --border-sidebar: #e2e8f0;
    --border-card: #e2e8f0;
    --border-input: #cbd5e1;

    /* Texte */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;

    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* ========== MODE SOMBRE ========== */
[data-theme="dark"] {
    --bg-body: #0f172a;
    --bg-sidebar: #1e293b;
    --bg-header: rgba(30, 41, 59, 0.95);
    --bg-card: #1e293b;
    --bg-input: #334155;

    --border-sidebar: #334155;
    --border-card: #334155;
    --border-input: #475569;

    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;

    --primary-muted: rgba(34, 197, 94, 0.2);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

/* ========== BASE ========== */
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-secondary);
    background-color: var(--bg-body);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
}

/* ========== CARDS ========== */
.card {
    background: var(--bg-card);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-card);
    transition: box-shadow var(--transition-normal), border-color var(--transition-normal), transform var(--transition-fast);
}

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

[data-theme="dark"] .card:hover {
    border-color: #475569;
}

/* ========== ANIMATIONS ========== */
.fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

.slide-up {
    animation: slideUp 0.4s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========== SIDEBAR ========== */
.sidebar {
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-sidebar);
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.nav-item-active {
    background: var(--primary-muted);
    border-left-color: var(--primary);
    color: var(--primary-hover);
}

.nav-item-hover:hover {
    background: var(--primary-muted);
    transform: translateX(4px);
    transition: transform var(--transition-fast), background var(--transition-fast);
}

/* ========== HEADER ========== */
.app-header {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-sidebar);
    color: var(--text-primary);
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

/* ========== FLASH MESSAGES ========== */
.flash-container {
    position: fixed;
    top: 5.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    pointer-events: none;
    max-width: 90vw;
    width: 420px;
}

.flash {
    pointer-events: auto;
    padding: 1rem 1.25rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-left: 4px solid;
    animation: slideUp 0.35s ease-out;
    font-size: 0.9375rem;
    color: var(--text-primary);
    background: var(--bg-card);
}

.flash-success { border-left-color: var(--success); }
.flash-success .flash-icon { color: var(--success); }

.flash-error { border-left-color: var(--danger); }
.flash-error .flash-icon { color: var(--danger); }

.flash-warning { border-left-color: var(--warning); }
.flash-warning .flash-icon { color: var(--warning); }

.flash-close {
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    color: var(--text-muted);
    border-radius: 0.25rem;
    transition: color var(--transition-fast), background var(--transition-fast);
}
.flash-close:hover {
    color: var(--text-primary);
    background: var(--primary-muted);
}

/* ========== TABLES RESPONSIVE ========== */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -0.5rem;
    padding: 0 0.5rem;
}

@media (min-width: 768px) {
    .table-wrapper {
        margin: 0;
        padding: 0;
    }
}

.table-wrapper table {
    min-width: 600px;
}

/* ========== LOADER GLOBAL AJAX ========== */
#global-loader {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.25);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(2px);
}

#global-loader.active {
    display: flex;
}

#global-loader .spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-card);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ========== MODALE CONFIRMATION ========== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    padding: 1rem;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.modal-backdrop.active {
    display: flex;
    opacity: 1;
}

.modal-dialog {
    background: var(--bg-card);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
    max-width: 420px;
    width: 100%;
    padding: 1.5rem;
    border: 1px solid var(--border-card);
    animation: slideUp 0.3s ease-out;
}

.modal-dialog .modal-title {
    margin: 0 0 0.5rem;
    font-size: 1.125rem;
    color: var(--text-primary);
}

.modal-dialog .modal-body {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 0.9375rem;
}

.modal-dialog .modal-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

/* ========== BOUTONS HOVER ========== */
.btn-primary {
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}
.btn-primary:hover {
    transform: translateY(-1px);
}

/* ========== UTILITAIRES ========== */
.product-row.updating .product-statut-badge {
    opacity: 0.6;
}

/* Logo texte (sidebar/header) */
.app-logo {
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--primary);
    transition: color var(--transition-normal);
}

[data-theme="dark"] .app-logo {
    color: #4ade80;
}

/* Sidebar : texte lisible en mode sombre */
[data-theme="dark"] .sidebar .nav-item-hover {
    color: var(--text-secondary);
}
[data-theme="dark"] .sidebar .nav-item-hover:hover {
    color: #4ade80;
}
[data-theme="dark"] .sidebar [class*="text-slate-700"],
[data-theme="dark"] .sidebar [class*="text-slate-500"] {
    color: var(--text-secondary) !important;
}