/* ============================================================
   APPLICATION INVENTAIRE - Styles principaux
   ============================================================ */

:root {
    --primary:    #1a4a7a;
    --primary-l:  #2563a8;
    --accent:     #e67e22;
    --success:    #27ae60;
    --danger:     #e74c3c;
    --warning:    #f39c12;
    --info:       #2980b9;
    --dark:       #1a1a2e;
    --gray:       #6c757d;
    --light:      #f8f9fa;
    --border:     #dee2e6;
    --shadow:     0 2px 12px rgba(0,0,0,0.1);
    --radius:     8px;
    --sidebar-w:  250px;
    --font:       'Segoe UI', system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font);
    background: #f0f2f5;
    color: #333;
    font-size: 14px;
}

/* ---- LAYOUT ---- */
#app { display: flex; min-height: 100vh; }

/* ---- SIDEBAR ---- */
#sidebar {
    width: var(--sidebar-w);
    background: var(--dark);
    color: #ccc;
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: transform 0.3s;
}

#sidebar .logo {
    padding: 20px 16px;
    border-bottom: 1px solid #333;
    background: var(--primary);
}

#sidebar .logo h1 {
    font-size: 16px;
    color: white;
    font-weight: 700;
    line-height: 1.3;
}

#sidebar .logo small { color: #aac4e8; font-size: 11px; }

#sidebar nav { padding: 12px 0; }

#sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 20px;
    color: #bbb;
    text-decoration: none;
    font-size: 13.5px;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

#sidebar nav a:hover,
#sidebar nav a.active {
    background: rgba(255,255,255,0.07);
    color: white;
    border-left-color: var(--accent);
}

#sidebar nav a .icon { font-size: 17px; width: 22px; text-align: center; }

#sidebar .nav-section {
    padding: 12px 20px 4px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #555;
}

/* ---- MAIN CONTENT ---- */
#main {
    margin-left: var(--sidebar-w);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ---- TOPBAR ---- */
#topbar {
    background: white;
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 50;
}

#topbar h2 { font-size: 17px; color: var(--primary); font-weight: 600; }

.topbar-right { display: flex; align-items: center; gap: 16px; }

.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 6px 10px;
    border-radius: var(--radius);
    transition: background 0.2s;
}

.user-info:hover { background: var(--light); }

.avatar {
    width: 34px; height: 34px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
}

/* ---- PAGE CONTENT ---- */
#content {
    padding: 24px;
    flex: 1;
}

/* ---- CARDS ---- */
.card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.card-header h3 { font-size: 15px; color: var(--primary); font-weight: 600; }

/* ---- STATS GRID ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 14px;
    border-left: 4px solid var(--primary);
}

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

.stat-icon { font-size: 28px; }

.stat-info .label { font-size: 11px; color: var(--gray); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-info .value { font-size: 26px; font-weight: 700; color: var(--dark); line-height: 1; margin-top: 2px; }

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13.5px;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-l); }
.btn-success { background: var(--success); color: white; }
.btn-danger  { background: var(--danger);  color: white; }
.btn-warning { background: var(--warning); color: white; }
.btn-info    { background: var(--info);    color: white; }
.btn-light   { background: var(--light);   color: #555; border: 1px solid var(--border); }
.btn-sm      { padding: 5px 10px; font-size: 12px; }
.btn-lg      { padding: 12px 24px; font-size: 15px; }

.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ---- TABLES ---- */
.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }

table th {
    background: var(--light);
    padding: 10px 12px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border);
}

table td {
    padding: 10px 12px;
    border-bottom: 1px solid #f0f0f0;
    vertical-align: middle;
}

table tr:hover td { background: #fafafa; }

/* ---- BADGES ---- */
.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}

.badge-success { background: #d4edda; color: #155724; }
.badge-warning { background: #fff3cd; color: #856404; }
.badge-danger  { background: #f8d7da; color: #721c24; }
.badge-info    { background: #d1ecf1; color: #0c5460; }
.badge-gray    { background: #e9ecef; color: #495057; }
.badge-primary { background: #cce5ff; color: #004085; }

/* ---- FORMS ---- */
.form-group { margin-bottom: 16px; }

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
    color: #444;
}

.form-group label .req { color: var(--danger); margin-left: 2px; }

.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: var(--font);
    transition: border-color 0.2s, box-shadow 0.2s;
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,74,122,0.1);
}

.form-row { display: grid; gap: 16px; }
.form-row.col-2 { grid-template-columns: 1fr 1fr; }
.form-row.col-3 { grid-template-columns: 1fr 1fr 1fr; }

/* ---- MODAL ---- */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.open { display: flex; }

.modal {
    background: white;
    border-radius: 12px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    animation: slideUp 0.2s ease;
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
}

.modal-header {
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 { font-size: 16px; color: var(--primary); }

.modal-body { padding: 20px; }
.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.close-btn {
    background: none; border: none; cursor: pointer;
    font-size: 20px; color: var(--gray);
    padding: 4px; border-radius: 4px;
}
.close-btn:hover { background: var(--light); color: #333; }

/* ---- ALERTS ---- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-danger  { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.alert-warning { background: #fff3cd; color: #856404; border: 1px solid #ffeeba; }
.alert-info    { background: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }

/* ---- PROGRESS BAR ---- */
.progress { background: #e9ecef; border-radius: 10px; height: 8px; overflow: hidden; }
.progress-bar { height: 100%; background: var(--primary); border-radius: 10px; transition: width 0.3s; }
.progress-bar.success { background: var(--success); }
.progress-bar.warning { background: var(--warning); }

/* ---- SEARCH / FILTERS ---- */
.toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 200px;
}

.search-box input {
    width: 100%;
    padding: 8px 12px 8px 36px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 13.5px;
}

.search-box::before {
    content: '🔍';
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    pointer-events: none;
}

/* ---- TOAST NOTIFICATIONS ---- */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 18px;
    border-radius: var(--radius);
    background: white;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    border-left: 4px solid var(--primary);
    font-size: 13.5px;
    min-width: 250px;
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.toast.success { border-left-color: var(--success); }
.toast.error   { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }

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

/* ---- EMPTY STATE ---- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray);
}
.empty-state .icon { font-size: 56px; margin-bottom: 16px; }
.empty-state h3 { font-size: 17px; margin-bottom: 8px; }

/* ---- LOGIN PAGE ---- */
#login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 100%);
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.login-card .logo-area {
    text-align: center;
    margin-bottom: 28px;
}

.login-card .logo-area .icon-big { font-size: 50px; }
.login-card .logo-area h1 { font-size: 22px; color: var(--primary); margin-top: 8px; }
.login-card .logo-area p { color: var(--gray); font-size: 13px; }

/* ---- SCAN PAGE ---- */
#scan-page {
    min-height: 100vh;
    background: #111;
    color: white;
    display: flex;
    flex-direction: column;
}

#reader { width: 100%; max-width: 500px; margin: 0 auto; }

.scan-bien-card {
    background: #1a1a1a;
    border-radius: 12px;
    padding: 20px;
    margin: 16px;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    #sidebar {
        transform: translateX(-100%);
    }

    #sidebar.open {
        transform: translateX(0);
    }

    #main {
        margin-left: 0;
    }

    #content { padding: 16px; }

    .form-row.col-2,
    .form-row.col-3 { grid-template-columns: 1fr; }

    .stats-grid { grid-template-columns: 1fr 1fr; }

    #menu-toggle { display: flex !important; }

    table { font-size: 12px; }
    table td, table th { padding: 8px; }

    .hide-mobile { display: none !important; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .modal { max-width: 100%; margin: 0; border-radius: 12px 12px 0 0; }
    .modal-overlay { align-items: flex-end; padding: 0; }
}

/* ---- MENU TOGGLE (mobile) ---- */
#menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: #333;
    padding: 4px;
}

/* ---- LOADER ---- */
.loader {
    display: inline-block;
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

.page-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
}

.page-loader .spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ---- PAGINATION ---- */
.pagination {
    display: flex;
    gap: 6px;
    align-items: center;
    justify-content: center;
    padding: 16px 0;
}

.pagination button {
    padding: 6px 12px;
    border: 1px solid var(--border);
    background: white;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.pagination button:hover,
.pagination button.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ---- SIDEBAR OVERLAY (mobile) ---- */
#sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99;
}