/* ========== RESET & VARIABLES ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #eef2ff;
    --secondary: #06b6d4;
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --radius: 10px;
    --radius-sm: 6px;
    --sidebar-w: 250px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

.sidebar {
    width: var(--sidebar-w);
    background: linear-gradient(180deg, #1e1b4b 0%, #312e81 100%);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: transform 0.3s;
}

.sidebar-header {
    padding: 24px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
    transition: all 0.15s;
}
.nav-item:hover { background: rgba(255,255,255,0.08); color: white; }
.nav-item.active {
    background: rgba(255,255,255,0.15);
    color: white;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 10px;
}
.user-info { flex: 1; display: flex; align-items: center; gap: 10px; min-width: 0; }
.user-avatar {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 600; font-size: 14px;
    flex-shrink: 0;
}
.user-meta { flex: 1; min-width: 0; }
.user-name { font-size: 13px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-email { font-size: 11px; color: rgba(255,255,255,0.6); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.btn-logout {
    background: rgba(255,255,255,0.08);
    color: white;
    border: none;
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    transition: background 0.15s;
}
.btn-logout:hover { background: rgba(239,68,68,0.3); }

.main {
    margin-left: var(--sidebar-w);
    flex: 1;
    min-width: 0;
}

.topbar {
    background: white;
    padding: 14px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 50;
}
.topbar h1 { flex: 1; font-size: 20px; font-weight: 700; color: var(--gray-900); }
.topbar-actions { display: flex; gap: 10px; align-items: center; }

.menu-toggle {
    display: none;
    background: none; border: none;
    cursor: pointer; color: var(--gray-700);
    padding: 6px;
}

.content { padding: 24px; max-width: 1400px; }

/* ========== STATS CARDS ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: white;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    display: flex;
    gap: 14px;
    align-items: center;
    transition: transform 0.15s, box-shadow 0.15s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.stat-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.stat-icon.purple { background: var(--primary-light); color: var(--primary); }
.stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-icon.orange { background: var(--warning-light); color: var(--warning); }
.stat-icon.cyan { background: #cffafe; color: #0891b2; }
.stat-icon.pink { background: #fce7f3; color: #db2777; }
.stat-icon.red { background: var(--danger-light); color: var(--danger); }
.stat-label { font-size: 12px; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 600; }
.stat-value { font-size: 26px; font-weight: 700; color: var(--gray-900); line-height: 1.1; margin-top: 2px; }

/* ========== CHARTS ========== */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}
.card {
    background: white;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}
.card-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 16px;
}
.card-title { font-size: 16px; font-weight: 600; color: var(--gray-900); }
.chart-container { position: relative; height: 280px; }

/* ========== TABLE ========== */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
    text-align: left;
    padding: 12px 14px;
    font-size: 12px;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
}
td {
    padding: 14px;
    font-size: 14px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
}
tbody tr:hover { background: var(--gray-50); }
tbody tr:last-child td { border-bottom: none; }

/* ========== BADGES ========== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}
.badge-planifie { background: var(--primary-light); color: var(--primary-dark); }
.badge-termine { background: var(--success-light); color: #047857; }
.badge-annule { background: var(--danger-light); color: #b91c1c; }
.badge-en-cours { background: var(--warning-light); color: #b45309; }

/* ========== BUTTONS ========== */
.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.15s;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}
.btn-secondary:hover { background: var(--gray-50); border-color: var(--gray-400); }
.btn-danger {
    background: white;
    color: var(--danger);
    border: 1px solid var(--gray-300);
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}
.btn-danger:hover { background: var(--danger); color: white; border-color: var(--danger); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon {
    background: var(--gray-100);
    border: none;
    padding: 8px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    color: var(--gray-700);
    transition: background 0.15s;
}
.btn-icon:hover { background: var(--gray-200); }
.btn-icon.active { background: var(--primary); color: white; }

.actions-cell { display: flex; gap: 6px; }

/* ========== FILTERS / TOOLBAR ========== */
.toolbar {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    align-items: center;
}
.toolbar input[type=text] {
    padding: 9px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 14px;
    min-width: 220px;
    background: white;
}
.toolbar input[type=text]:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.1); }
.filter-tabs {
    display: flex;
    gap: 4px;
    background: var(--gray-100);
    padding: 4px;
    border-radius: var(--radius-sm);
}
.filter-tab {
    padding: 6px 14px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 13px;
    color: var(--gray-600);
    font-weight: 500;
    border-radius: 4px;
    transition: all 0.15s;
}
.filter-tab.active { background: white; color: var(--gray-900); box-shadow: var(--shadow-sm); }

/* ========== FORMS ========== */
.form-grid { display: grid; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--gray-700); }
.form-group input, .form-group select, .form-group textarea {
    padding: 9px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: white;
    color: var(--gray-900);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 6px; }

/* ========== MODAL ========== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    animation: fadeIn 0.15s;
}
.modal-content {
    background: white;
    border-radius: var(--radius);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.2s;
}
.modal-header {
    padding: 18px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h2 { font-size: 18px; font-weight: 700; color: var(--gray-900); }
.modal-close {
    background: none; border: none;
    cursor: pointer; color: var(--gray-500);
    padding: 4px; border-radius: 4px;
    display: flex;
}
.modal-close:hover { background: var(--gray-100); color: var(--gray-900); }
.modal-body { padding: 20px; }

.alert-modal { max-width: 420px; text-align: center; padding: 30px 24px; }
.alert-pulse {
    width: 80px; height: 80px;
    margin: 0 auto 16px;
    background: var(--warning-light);
    color: var(--warning);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    animation: pulseRing 1.5s infinite;
}
@keyframes pulseRing {
    0%, 100% { box-shadow: 0 0 0 0 rgba(245,158,11,0.4); }
    50% { box-shadow: 0 0 0 20px rgba(245,158,11,0); }
}
.alert-modal h2 { font-size: 22px; margin-bottom: 12px; color: var(--gray-900); }
.alert-modal .rdv-card {
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    padding: 14px;
    margin: 16px 0;
    text-align: left;
}
.alert-modal .rdv-card strong { color: var(--gray-900); font-size: 16px; display: block; margin-bottom: 6px; }
.alert-modal .rdv-card .meta { font-size: 13px; color: var(--gray-600); }
.alert-actions { margin-top: 16px; }

/* ========== TOAST ========== */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toast {
    background: white;
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--success);
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-800);
    animation: slideIn 0.2s;
    max-width: 360px;
}
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }

/* ========== ALERTS / EMPTY ========== */
.alert-error {
    background: var(--danger-light);
    color: #b91c1c;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    margin-bottom: 14px;
    font-size: 14px;
}
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}
.empty-state svg { margin-bottom: 12px; opacity: 0.5; }
.empty-state h3 { color: var(--gray-700); margin-bottom: 6px; }

/* ========== UPCOMING LIST ========== */
.upcoming-list { display: flex; flex-direction: column; gap: 10px; }
.upcoming-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-sm);
    background: var(--gray-50);
    align-items: center;
    transition: background 0.15s;
}
.upcoming-item:hover { background: var(--gray-100); }
.upcoming-date {
    background: white;
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    text-align: center;
    min-width: 56px;
    border: 1px solid var(--gray-200);
}
.upcoming-date .day { font-size: 18px; font-weight: 700; color: var(--gray-900); line-height: 1; }
.upcoming-date .month { font-size: 10px; text-transform: uppercase; color: var(--gray-500); font-weight: 600; }
.upcoming-info { flex: 1; min-width: 0; }
.upcoming-info .title { font-weight: 600; color: var(--gray-900); font-size: 14px; }
.upcoming-info .meta { font-size: 12px; color: var(--gray-500); margin-top: 2px; }

/* ========== CLIENT DETAILS ========== */
.client-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}
.detail-row {
    padding: 10px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
}
.detail-row .label { font-size: 11px; color: var(--gray-500); text-transform: uppercase; font-weight: 600; }
.detail-row .value { font-size: 14px; color: var(--gray-900); margin-top: 2px; font-weight: 500; }

/* ========== LOGIN ========== */
.login-body {
    background: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.login-box {
    background: white;
    padding: 40px 32px;
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}
.login-logo {
    width: 72px; height: 72px;
    margin: 0 auto 16px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.login-box h1 { font-size: 24px; color: var(--gray-900); margin-bottom: 6px; }
.login-subtitle { color: var(--gray-500); margin-bottom: 24px; font-size: 14px; }
.login-form { display: flex; flex-direction: column; gap: 14px; text-align: left; }
.login-form label { display: flex; flex-direction: column; gap: 6px; }
.login-form label span { font-size: 13px; font-weight: 600; color: var(--gray-700); }
.login-form input {
    padding: 11px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 14px;
}
.login-form input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.1); }
.login-form button { padding: 11px; margin-top: 6px; justify-content: center; }
.login-hint {
    margin-top: 20px;
    font-size: 12px;
    color: var(--gray-500);
    padding: 10px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
}

/* ========== ANIMATIONS ========== */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(10px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ========== RESPONSIVE ========== */
@media (max-width: 900px) {
    .charts-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .client-detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }
    .main { margin-left: 0; }
    .menu-toggle { display: flex; }
    .content { padding: 16px; }
    .topbar { padding: 12px 16px; }
    .topbar h1 { font-size: 18px; }
    .topbar-actions .btn-primary { padding: 8px 10px; font-size: 13px; }
    .topbar-actions .btn-primary span:not(.icon) { display: none; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-card { padding: 14px; }
    .stat-value { font-size: 20px; }
    .stat-icon { width: 38px; height: 38px; }
    .stat-icon svg { width: 18px; height: 18px; }
}
@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    th, td { padding: 10px 8px; font-size: 13px; }
}