/* ============================================
   Sistema de Facturación - Taller de Celulares
   Estilos principales
   ============================================ */

/* ── CSS Variables ── */
:root {
    --primary: #1e40af;
    --primary-light: #3b82f6;
    --primary-dark: #1e3a5f;
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --accent: #f59e0b;
    --accent-light: #fbbf24;
    --accent-dark: #d97706;
    --success: #059669;
    --success-light: #d1fae5;
    --warning: #d97706;
    --warning-light: #fef3c7;
    --danger: #dc2626;
    --danger-light: #fee2e2;
    --info: #0284c7;
    --info-light: #e0f2fe;
    --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;
    --white: #ffffff;
    --sidebar-width: 260px;
    --sidebar-bg: #0f172a;
    --sidebar-text: #cbd5e1;
    --sidebar-active: #1e40af;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ── Reset & Base ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea, button { font-family: inherit; font-size: inherit; }

/* ── Layout ── */
.app-container {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding: 24px;
    transition: var(--transition);
}

.content-wrapper {
    max-width: 1400px;
    margin: 0 auto;
}

/* ── Mobile Header ── */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--sidebar-bg);
    color: var(--white);
    align-items: center;
    padding: 0 16px;
    z-index: 1000;
    gap: 12px;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.25rem;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.sidebar-toggle:hover {
    background: rgba(255,255,255,0.1);
}

.mobile-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1rem;
}

.mobile-logo {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    object-fit: cover;
}

/* ── Sidebar ── */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    z-index: 1001;
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.sidebar-header {
    padding: 20px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.15);
}

.sidebar-logo-placeholder {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--white);
}

.sidebar-brand-text h2 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.3;
}

.sidebar-brand-text small {
    font-size: 0.7rem;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-close {
    display: none;
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: var(--gray-400);
    font-size: 1.2rem;
    padding: 6px;
}

/* ── Sidebar Nav ── */
.sidebar-nav {
    flex: 1;
    padding: 16px 10px;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 16px;
    border-radius: var(--radius-md);
    color: var(--sidebar-text);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    margin-bottom: 4px;
}

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

.sidebar-nav a.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.4);
}

.sidebar-nav a i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

/* ── Sidebar Footer ── */
.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.user-avatar {
    font-size: 2rem;
    color: var(--gray-400);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white);
}

.user-role {
    font-size: 0.72rem;
    color: var(--gray-400);
}

.sidebar-logout {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    color: var(--gray-400);
    font-size: 0.85rem;
    transition: var(--transition);
}

.sidebar-logout:hover {
    background: rgba(220, 38, 38, 0.15);
    color: #fca5a5;
}

/* ── Sidebar Overlay ── */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    backdrop-filter: blur(2px);
}

/* ── Page Header ── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header h1 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-header h1 i {
    color: var(--primary);
    font-size: 1.3rem;
}

.page-subtitle {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-top: 2px;
}

/* ── Cards ── */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: var(--transition);
}

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

.card-header {
    padding: 18px 22px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-header h2, .card-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-body {
    padding: 22px;
}

.card-footer {
    padding: 16px 22px;
    border-top: 1px solid var(--gray-100);
    background: var(--gray-50);
}

/* ── Stats Grid ── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 20px;
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card.stat-total::before { background: var(--primary); }
.stat-card.stat-pending::before { background: var(--accent); }
.stat-card.stat-completed::before { background: var(--success); }
.stat-card.stat-cancelled::before { background: var(--danger); }
.stat-card.stat-today::before { background: var(--info); }
.stat-card.stat-income::before { background: #7c3aed; }

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.stat-total .stat-icon { background: var(--primary-100); color: var(--primary); }
.stat-pending .stat-icon { background: var(--warning-light); color: var(--accent-dark); }
.stat-completed .stat-icon { background: var(--success-light); color: var(--success); }
.stat-cancelled .stat-icon { background: var(--danger-light); color: var(--danger); }
.stat-today .stat-icon { background: var(--info-light); color: var(--info); }
.stat-income .stat-icon { background: #ede9fe; color: #7c3aed; }

.stat-content h3 {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 4px;
}

.stat-content .stat-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.2;
}

/* ── Quick Actions ── */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-bottom: 28px;
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 24px 16px;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--gray-700);
    transition: var(--transition);
    text-align: center;
}

.quick-action-btn i {
    font-size: 1.8rem;
    color: var(--primary);
}

.quick-action-btn:hover {
    border-color: var(--primary);
    background: var(--primary-50);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.88rem;
    border: none;
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    box-shadow: 0 2px 8px rgba(30, 64, 175, 0.3);
}
.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(30, 64, 175, 0.45);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #10b981);
    color: var(--white);
}
.btn-success:hover { box-shadow: 0 4px 12px rgba(5,150,105,0.35); }

.btn-warning {
    background: linear-gradient(135deg, var(--accent-dark), var(--accent));
    color: var(--white);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #ef4444);
    color: var(--white);
}

.btn-outline {
    background: var(--white);
    border: 2px solid var(--gray-300);
    color: var(--gray-700);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-50);
}

.btn-whatsapp {
    background: linear-gradient(135deg, #128C7E, #25D366);
    color: var(--white);
}
.btn-whatsapp:hover { box-shadow: 0 4px 12px rgba(37,211,102,0.4); }

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* ── Forms ── */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 6px;
}

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

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--gray-800);
    background: var(--white);
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-control::placeholder {
    color: var(--gray-400);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
    background-position: right 10px center;
    background-repeat: no-repeat;
    background-size: 20px;
    padding-right: 36px;
}

textarea.form-control {
    min-height: 80px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.form-row .form-group {
    margin-bottom: 0;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-top: 4px;
}

/* ── Invoice Form Sections ── */
.form-section {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    margin-bottom: 20px;
    overflow: hidden;
}

.form-section-header {
    padding: 14px 20px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--gray-700);
}

.form-section-header i {
    color: var(--primary);
    font-size: 1rem;
}

.form-section-body {
    padding: 20px;
}

/* ── Tables ── */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-md);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.data-table th {
    background: var(--gray-50);
    padding: 12px 14px;
    text-align: left;
    font-weight: 700;
    color: var(--gray-600);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.data-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: var(--primary-50);
}

.data-table .actions-cell {
    white-space: nowrap;
}

/* ── Status Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.status-pending { background: var(--warning-light); color: var(--accent-dark); }
.status-progress { background: #dbeafe; color: var(--primary); }
.status-completed { background: var(--success-light); color: var(--success); }
.status-delivered { background: #ede9fe; color: #7c3aed; }
.status-cancelled { background: var(--danger-light); color: var(--danger); }

.pay-pending { background: var(--danger-light); color: var(--danger); }
.pay-partial { background: var(--warning-light); color: var(--accent-dark); }
.pay-paid { background: var(--success-light); color: var(--success); }

/* ── Alerts ── */
.alert {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 0.88rem;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}

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

.alert-success { background: var(--success-light); color: #065f46; border-left: 4px solid var(--success); }
.alert-error { background: var(--danger-light); color: #991b1b; border-left: 4px solid var(--danger); }
.alert-warning { background: var(--warning-light); color: #92400e; border-left: 4px solid var(--accent); }
.alert-info { background: var(--info-light); color: #075985; border-left: 4px solid var(--info); }

.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    color: inherit;
    opacity: 0.6;
    font-size: 1rem;
    cursor: pointer;
}

/* ── Pagination ── */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
    background: var(--white);
}

.pagination a:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-50);
}

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

.pagination .disabled {
    opacity: 0.4;
    pointer-events: none;
}

/* ── Search & Filters ── */
.filters-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
    align-items: flex-end;
}

.filters-bar .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 180px;
}

.filters-bar .form-group.search-group {
    flex: 2;
    min-width: 250px;
}

.search-input-wrapper {
    position: relative;
}

.search-input-wrapper .form-control {
    padding-left: 40px;
}

.search-input-wrapper i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
}

/* ── Invoice View ── */
.invoice-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.invoice-header-bar {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
    padding: 24px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.invoice-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.invoice-brand img {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.3);
}

.invoice-brand-info h2 {
    font-size: 1.2rem;
    font-weight: 800;
}

.invoice-brand-info p {
    font-size: 0.8rem;
    opacity: 0.85;
}

.invoice-order-number {
    text-align: right;
}

.invoice-order-number .order-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.invoice-order-number .order-value {
    font-size: 1.4rem;
    font-weight: 800;
}

.invoice-body {
    padding: 28px 30px;
}

.invoice-section {
    margin-bottom: 22px;
}

.invoice-section h4 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--primary-100);
}

.invoice-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 24px;
}

.invoice-field {
    display: flex;
    gap: 6px;
    font-size: 0.88rem;
    padding: 4px 0;
}

.invoice-field .field-label {
    font-weight: 700;
    color: var(--gray-600);
    min-width: 100px;
    flex-shrink: 0;
}

.invoice-field .field-value {
    color: var(--gray-800);
}

.invoice-totals {
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: 18px;
    border: 1px solid var(--gray-200);
}

.invoice-total-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 0.9rem;
}

.invoice-total-row.total-main {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--primary);
    border-top: 2px solid var(--gray-200);
    padding-top: 10px;
    margin-top: 4px;
}

.invoice-footer-note {
    text-align: center;
    padding: 18px 30px;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    font-size: 0.82rem;
    color: var(--gray-500);
    font-style: italic;
}

.invoice-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    padding: 20px;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
}

/* ── Signature Canvas ── */
.signature-pad {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    background: var(--gray-50);
    cursor: crosshair;
    touch-action: none;
}

.signature-actions {
    display: flex;
    gap: 8px;
    margin-top: 6px;
}

/* ── Auth Pages ── */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1e40af 100%);
    padding: 20px;
}

.auth-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 40px;
    width: 100%;
    max-width: 440px;
    animation: fadeUp 0.5s ease;
}

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

.auth-card .auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-card .auth-header .auth-logo {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}

.auth-card .auth-header h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gray-900);
}

.auth-card .auth-header p {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-top: 6px;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.88rem;
    color: var(--gray-500);
}

.auth-footer a {
    color: var(--primary);
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* ── Settings Tabs ── */
.settings-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 24px;
    background: var(--white);
    padding: 6px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.settings-tab {
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gray-600);
    background: transparent;
    border: none;
    transition: var(--transition);
    cursor: pointer;
}

.settings-tab:hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

.settings-tab.active {
    background: var(--primary);
    color: var(--white);
}

.settings-panel {
    display: none;
}

.settings-panel.active {
    display: block;
}

/* ── Tags / Chips ── */
.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: var(--primary-100);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
}

.tag .tag-remove {
    cursor: pointer;
    opacity: 0.6;
    font-size: 0.7rem;
}

.tag .tag-remove:hover {
    opacity: 1;
}

/* ── Empty State ── */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-400);
}

.empty-state i {
    font-size: 3.5rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-500);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 0.88rem;
}

/* ── Modal ── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: fadeUp 0.3s ease;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: var(--gray-400);
    cursor: pointer;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ── Catalog List ── */
.catalog-list {
    list-style: none;
}

.catalog-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition);
}

.catalog-item:hover {
    background: var(--gray-50);
}

.catalog-item:last-child {
    border-bottom: none;
}

.catalog-item-name {
    font-weight: 500;
    font-size: 0.9rem;
}

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

/* ── Lock Pattern Grid ── */
.pattern-grid {
    display: grid;
    grid-template-columns: repeat(3, 40px);
    gap: 12px;
    padding: 10px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    width: fit-content;
}

.pattern-dot {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid var(--gray-300);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pattern-dot.active {
    background: var(--primary);
    border-color: var(--primary);
}

.pattern-dot .dot-number {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--white);
    display: none;
}

.pattern-dot.active .dot-number {
    display: block;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    }
}

@media (max-width: 768px) {
    .mobile-header {
        display: flex;
    }

    .sidebar {
        transform: translateX(-100%);
    }

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

    .sidebar-close {
        display: block;
    }

    .sidebar-overlay.show {
        display: block;
    }

    .main-content {
        margin-left: 0;
        padding: 12px;
        padding-top: 68px;
    }

    .page-header {
        margin-bottom: 16px;
    }

    .page-header h1 {
        font-size: 1.15rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .stat-card {
        padding: 12px;
        gap: 10px;
    }

    .stat-icon {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }

    .stat-content h3 {
        font-size: 0.65rem;
    }

    .stat-content .stat-value {
        font-size: 1.15rem;
    }

    .quick-actions {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .quick-action-btn {
        padding: 16px 10px;
        font-size: 0.8rem;
    }

    .quick-action-btn i {
        font-size: 1.4rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .filters-bar {
        flex-direction: column;
    }

    .filters-bar .form-group {
        min-width: unset;
    }

    .invoice-header-bar {
        flex-direction: column;
        text-align: center;
    }

    .invoice-order-number {
        text-align: center;
    }

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

    .invoice-actions {
        flex-direction: column;
    }

    .invoice-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .btn-group {
        flex-direction: column;
    }

    .settings-tabs {
        flex-direction: column;
    }

    .auth-card {
        padding: 28px 24px;
    }

    /* ── Mobile History Cards ── */
    .table-wrapper {
        overflow: visible;
    }

    .data-table thead {
        display: none;
    }

    .data-table,
    .data-table tbody,
    .data-table tr,
    .data-table td {
        display: block;
        width: 100%;
    }

    .data-table tr {
        background: var(--white);
        border: 1px solid var(--gray-200);
        border-radius: var(--radius-lg);
        padding: 14px;
        margin-bottom: 10px;
        position: relative;
        box-shadow: var(--shadow-sm);
    }

    .data-table tr:hover {
        background: var(--white);
    }

    .data-table td {
        padding: 3px 0;
        border: none;
        font-size: 0.85rem;
    }

    .data-table td::before {
        content: attr(data-label);
        font-weight: 700;
        color: var(--gray-500);
        font-size: 0.72rem;
        text-transform: uppercase;
        letter-spacing: 0.3px;
        display: block;
        margin-bottom: 2px;
    }

    .data-table td.actions-cell {
        padding-top: 10px;
        margin-top: 6px;
        border-top: 1px solid var(--gray-100);
    }

    .data-table td.actions-cell::before {
        display: none;
    }

    .data-table td.actions-cell .btn-group {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: flex-start;
    }

    /* ── Mobile confirm modal ── */
    .confirm-modal {
        padding: 24px;
        margin: 16px;
    }
}

@media (max-width: 480px) {
    html { font-size: 14px; }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .stat-card {
        padding: 10px;
        gap: 8px;
    }

    .stat-icon {
        width: 32px;
        height: 32px;
        font-size: 0.8rem;
    }

    .stat-content h3 {
        font-size: 0.6rem;
    }

    .stat-content .stat-value {
        font-size: 1rem;
    }

    .quick-actions {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .quick-action-btn {
        padding: 14px 8px;
        font-size: 0.75rem;
        gap: 6px;
    }

    .quick-action-btn i {
        font-size: 1.2rem;
    }

    .data-table td {
        font-size: 0.82rem;
    }
}

/* ── Print Styles ── */
@media print {
    body {
        background: white !important;
        color: black !important;
        font-size: 12px !important;
    }

    .sidebar,
    .mobile-header,
    .sidebar-overlay,
    .invoice-actions,
    .btn,
    .page-header,
    .no-print,
    .alert {
        display: none !important;
    }

    .main-content {
        margin: 0 !important;
        padding: 0 !important;
    }

    .invoice-container {
        box-shadow: none !important;
        border: none !important;
        max-width: 100% !important;
    }

    .invoice-header-bar {
        background: var(--gray-800) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
}

/* ── Utilities ── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--accent-dark); }
.font-bold { font-weight: 700; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.d-flex { display: flex; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }

/* ── Loading Spinner ── */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

/* ── WhatsApp Preview ── */
.whatsapp-preview {
    background: #e5ddd5;
    border-radius: var(--radius-md);
    padding: 20px;
    min-height: 200px;
}

.whatsapp-bubble {
    background: #dcf8c6;
    border-radius: 8px;
    padding: 10px 14px;
    max-width: 85%;
    margin-left: auto;
    font-size: 0.9rem;
    line-height: 1.5;
    white-space: pre-wrap;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* ── Confirm Modal ── */
.confirm-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.2s ease;
}

.confirm-modal-overlay.show {
    display: flex;
}

.confirm-modal {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 32px;
    max-width: 420px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-xl);
    animation: modalSlideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

@keyframes modalSlideUp {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.confirm-modal-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--danger-light);
    color: var(--danger);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 18px;
}

.confirm-modal-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.confirm-modal-text {
    font-size: 0.88rem;
    color: var(--gray-500);
    line-height: 1.5;
    margin-bottom: 24px;
}

.confirm-modal-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.confirm-modal-actions .btn {
    min-width: 120px;
    justify-content: center;
}