/* =====================================================================
   NotesDeFrais - Design system
   ===================================================================== */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #eff6ff;
    --color-success: #16a34a;
    --color-success-light: #f0fdf4;
    --color-danger: #dc2626;
    --color-danger-light: #fef2f2;
    --color-warning: #d97706;
    --color-warning-light: #fffbeb;
    --color-purple: #7c3aed;
    --color-purple-light: #f5f3ff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-500: #6b7280;
    --color-gray-700: #374151;
    --color-gray-900: #111827;
    --radius: 10px;
    --radius-lg: 16px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--font);
    background: var(--color-gray-50);
    color: var(--color-gray-900);
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { margin: 0 0 8px 0; line-height: 1.25; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 12px 0; }

img { max-width: 100%; }

/* ---- Layout ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-sm { max-width: 640px; margin: 0 auto; padding: 0 20px; }

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: #ffffff;
    border-right: 1px solid var(--color-gray-200);
    flex-shrink: 0;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    overflow-y: auto;
    z-index: 100;
    transition: transform 0.25s ease;
}

.main-content {
    flex: 1;
    margin-left: 250px;
    min-width: 0;
    padding: 24px;
}

.sidebar-brand {
    padding: 20px;
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--color-primary);
    border-bottom: 1px solid var(--color-gray-200);
}

.sidebar-nav { padding: 12px; }
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border-radius: var(--radius);
    color: var(--color-gray-700);
    font-weight: 500;
    margin-bottom: 2px;
    text-decoration: none;
}
.sidebar-nav a:hover { background: var(--color-gray-100); }
.sidebar-nav a.active { background: var(--color-primary-light); color: var(--color-primary); }
.sidebar-nav .nav-section-title {
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    color: var(--color-gray-500);
    padding: 16px 14px 6px 14px;
    font-weight: 700;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #fff;
    padding: 14px 24px;
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 0;
    z-index: 50;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-gray-700);
}

/* ---- Cards ---- */
.card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 22px;
    margin-bottom: 20px;
}
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}
.stat-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow);
}
.stat-card .stat-value { font-size: 1.6rem; font-weight: 800; }
.stat-card .stat-label { color: var(--color-gray-500); font-size: 0.85rem; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.92rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
    white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-success { background: var(--color-success); color: #fff; }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-outline { background: #fff; border: 1px solid var(--color-gray-300); color: var(--color-gray-700); }
.btn-outline:hover { background: var(--color-gray-100); }
.btn-ghost { background: transparent; color: var(--color-gray-700); }
.btn-ghost:hover { background: var(--color-gray-100); }
.btn-sm { padding: 6px 12px; font-size: 0.82rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---- Forms ---- */
.form-group { margin-bottom: 18px; }
label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
.form-hint { font-size: 0.8rem; color: var(--color-gray-500); margin-top: 4px; }
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=tel], input[type=search], select, textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: var(--font);
    background: #fff;
    color: var(--color-gray-900);
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}
textarea { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.input-file-zone {
    border: 2px dashed var(--color-gray-300);
    border-radius: var(--radius-lg);
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    background: var(--color-gray-50);
}
.input-file-zone:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: auto; }

/* ---- Badges ---- */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
}
.badge-gray { background: var(--color-gray-100); color: var(--color-gray-700); }
.badge-blue { background: var(--color-primary-light); color: var(--color-primary); }
.badge-green { background: var(--color-success-light); color: var(--color-success); }
.badge-red { background: var(--color-danger-light); color: var(--color-danger); }
.badge-purple { background: var(--color-purple-light); color: var(--color-purple); }
.badge-orange { background: var(--color-warning-light); color: var(--color-warning); }

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 10px; text-align: left; border-bottom: 1px solid var(--color-gray-100); font-size: 0.9rem; }
th { color: var(--color-gray-500); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
tr:hover td { background: var(--color-gray-50); }

/* ---- Alerts / flash ---- */
.alert { padding: 14px 18px; border-radius: var(--radius); margin-bottom: 16px; font-size: 0.9rem; }
.alert-success { background: var(--color-success-light); color: #166534; border: 1px solid #bbf7d0; }
.alert-error { background: var(--color-danger-light); color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: var(--color-primary-light); color: #1e40af; border: 1px solid #bfdbfe; }
.alert-warning { background: var(--color-warning-light); color: #92400e; border: 1px solid #fde68a; }

/* ---- Landing / public pages ---- */
.navbar-public {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    border-bottom: 1px solid var(--color-gray-200);
    background: #fff;
}
.navbar-public .brand { font-weight: 800; font-size: 1.3rem; color: var(--color-primary); }
.hero {
    text-align: center;
    padding: 80px 20px 60px 20px;
    background: linear-gradient(180deg, #eff6ff 0%, #ffffff 100%);
}
.hero h1 { font-size: 2.4rem; max-width: 800px; margin: 0 auto 16px auto; }
.hero p { font-size: 1.1rem; color: var(--color-gray-700); max-width: 600px; margin: 0 auto 28px auto; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding: 60px 0;
}
.feature-item { text-align: center; padding: 20px; }
.feature-icon { font-size: 2.2rem; margin-bottom: 12px; }

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    padding: 40px 0 80px 0;
}
.pricing-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 30px 24px;
    box-shadow: var(--shadow);
    border: 2px solid transparent;
    display: flex;
    flex-direction: column;
}
.pricing-card.featured { border-color: var(--color-primary); box-shadow: var(--shadow-lg); position: relative; }
.pricing-card .badge-featured {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--color-primary); color: #fff; padding: 4px 14px; border-radius: 999px; font-size: 0.75rem; font-weight: 700;
}
.pricing-price { font-size: 2.2rem; font-weight: 800; margin: 12px 0; }
.pricing-price span { font-size: 0.95rem; font-weight: 500; color: var(--color-gray-500); }
.pricing-features { list-style: none; padding: 0; margin: 20px 0; flex: 1; }
.pricing-features li { padding: 8px 0; border-bottom: 1px solid var(--color-gray-100); font-size: 0.9rem; }

.footer-public {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: 40px 0;
    text-align: center;
    font-size: 0.85rem;
}
.footer-public a { color: #fff; }

/* ---- Auth pages ---- */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-gray-50);
    padding: 20px;
}
.auth-card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 36px;
    width: 100%;
    max-width: 440px;
}
.auth-logo { text-align: center; margin-bottom: 20px; font-weight: 800; font-size: 1.3rem; color: var(--color-primary); }
.account-type-selector { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.account-type-option {
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius);
    padding: 16px 10px;
    text-align: center;
    cursor: pointer;
    background: #fff;
}
.account-type-option.selected { border-color: var(--color-primary); background: var(--color-primary-light); }
.account-type-option .icon { font-size: 1.6rem; display: block; margin-bottom: 6px; }

/* ---- Misc ---- */
.text-muted { color: var(--color-gray-500); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.flex-wrap { flex-wrap: wrap; }
.empty-state { text-align: center; padding: 50px 20px; color: var(--color-gray-500); }
.empty-state .icon { font-size: 2.5rem; margin-bottom: 10px; }
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 20px; }
.pagination a, .pagination span {
    padding: 8px 13px; border-radius: 8px; border: 1px solid var(--color-gray-200); color: var(--color-gray-700); font-size: 0.85rem;
}
.pagination .active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.modal-overlay {
    display: none;
    position: fixed; inset: 0; background: rgba(0,0,0,0.5);
    align-items: center; justify-content: center; z-index: 1000; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-box {
    background: #fff; border-radius: var(--radius-lg); padding: 24px; max-width: 480px; width: 100%;
    max-height: 90vh; overflow-y: auto;
}

.upload-preview-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; margin-top: 12px; }
.upload-preview-item { position: relative; border-radius: 8px; overflow: hidden; border: 1px solid var(--color-gray-200); aspect-ratio: 1; }
.upload-preview-item img { width: 100%; height: 100%; object-fit: cover; }
.upload-preview-item .pdf-icon { display: flex; align-items: center; justify-content: center; height: 100%; font-size: 2rem; background: var(--color-gray-100); }

.notif-dropdown { position: relative; }
.notif-badge { position: absolute; top: -4px; right: -4px; background: var(--color-danger); color: #fff; font-size: 0.65rem; border-radius: 999px; padding: 1px 5px; }
.notif-panel {
    display: none;
    position: absolute; right: 0; top: 40px; width: 320px; background: #fff; border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); z-index: 200; max-height: 400px; overflow-y: auto;
}
.notif-panel.open { display: block; }
.notif-item { padding: 12px 16px; border-bottom: 1px solid var(--color-gray-100); font-size: 0.85rem; }
.notif-item.unread { background: var(--color-primary-light); }

/* ---- Responsive ---- */
@media (max-width: 900px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; padding: 16px; }
    .mobile-menu-btn { display: block; }
    .stat-grid { grid-template-columns: 1fr 1fr; }
    .hero h1 { font-size: 1.8rem; }
    .card { padding: 16px; }
    th, td { font-size: 0.82rem; padding: 9px 6px; }
    .account-type-selector { grid-template-columns: 1fr; }
}

.filter-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
    align-items: end;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--color-gray-50);
    border-radius: var(--radius);
}
.filter-bar .form-group { margin-bottom: 0; }
.filter-bar label { font-size: 0.78rem; color: var(--color-gray-500); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.02em; }
.filter-bar .filter-actions { display: flex; gap: 8px; grid-column: 1 / -1; justify-content: flex-end; }
@media (max-width: 768px) {
    .filter-bar { grid-template-columns: 1fr 1fr; }
    .filter-bar .filter-actions { grid-column: 1 / -1; justify-content: flex-start; flex-wrap: wrap; }
}

.sidebar-overlay {
    display: none;
    position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 99;
}
.sidebar-overlay.open { display: block; }