/* ============================================
   ELILAB - Laboratory Information & Management System
   Main Stylesheet
   ============================================ */

/* === CSS Variables === */
:root {
    --primary: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --primary-bg: #eff6ff;
    --success: #16a34a;
    --success-bg: #f0fdf4;
    --warning: #d97706;
    --warning-bg: #fffbeb;
    --danger: #dc2626;
    --danger-bg: #fef2f2;
    --info: #0891b2;
    --info-bg: #ecfeff;
    --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-collapsed-width: 70px;
    --topbar-height: 64px;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.05);
    --transition: 0.2s ease;
}

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

html {
    font-size: 14px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--gray-800);
    background: var(--gray-50);
    line-height: 1.6;
    min-height: 100vh;
}

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

img { max-width: 100%; }

input, select, textarea, button {
    font-family: inherit;
    font-size: inherit;
}

/* === Typography === */
h1 { font-size: 1.75rem; font-weight: 700; }
h2 { font-size: 1.5rem; font-weight: 700; }
h3 { font-size: 1.125rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }

.link { color: var(--primary); cursor: pointer; }
.link:hover { text-decoration: underline; }

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 50%, #1d4ed8 100%);
    background-size: 400% 400%;
    animation: gradientShift 12s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
}

.login-header h1 {
    font-size: 1.75rem;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.login-header p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.login-form .input-icon {
    position: relative;
}

.login-form .input-icon svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
}

.login-form .input-icon input {
    width: 100%;
    padding: 10px 14px 10px 40px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius);
    color: var(--gray-800);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.login-form .input-icon input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-200);
}

.login-footer p {
    color: var(--gray-400);
    font-size: 0.75rem;
}

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

/* === Sidebar === */
.sidebar {
    width: var(--sidebar-width);
    background: var(--gray-900);
    color: var(--white);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: width var(--transition), transform var(--transition);
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 20px;
    border-bottom: 1px solid var(--gray-800);
}

.sidebar-brand span {
    font-size: 1.25rem;
    font-weight: 700;
    white-space: nowrap;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: var(--gray-400);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--transition);
    white-space: nowrap;
}

.nav-item:hover {
    background: rgba(255,255,255,0.08);
    color: var(--white);
}

.nav-item.active {
    background: var(--primary);
    color: var(--white);
}

.nav-divider {
    margin: 16px 16px 8px;
    border-top: 1px solid var(--gray-800);
    padding-top: 12px;
}

.nav-divider span {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-600);
    font-weight: 600;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-800);
}

.sidebar-footer p {
    color: var(--gray-600);
    font-size: 0.75rem;
}

.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
}

.sidebar-collapsed .sidebar-brand span,
.sidebar-collapsed .nav-item span,
.sidebar-collapsed .nav-divider span,
.sidebar-collapsed .sidebar-footer,
.sidebar-collapsed .user-info {
    display: none;
}

.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

/* === Top Bar === */
.topbar {
    height: var(--topbar-height);
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--gray-600);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius);
    transition: all var(--transition);
}

.sidebar-toggle:hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

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

.topbar-date {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--gray-600);
    font-size: 0.875rem;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
}

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

.user-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--gray-800);
}

.user-role {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* === Main Content === */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-content {
    padding: 24px;
    flex: 1;
}

.page-title {
    margin-bottom: 24px;
}

.page-title h2 {
    color: var(--gray-900);
    margin-bottom: 4px;
}

.page-title p {
    color: var(--gray-500);
    font-size: 0.9rem;
}

/* === Section === */
.section {
    margin-bottom: 32px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.section-header h3 {
    color: var(--gray-900);
}

/* ============================================
   COMPONENTS
   ============================================ */

/* === Stats Grid === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: box-shadow var(--transition);
}

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

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gray-500);
    font-weight: 500;
}

/* === Quick Actions === */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

.action-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray-700);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition);
}

.action-card:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.action-card svg {
    flex-shrink: 0;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: all var(--transition);
    line-height: 1.5;
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}
.btn-primary:hover { background: var(--white); color: var(--primary); border-color: var(--primary); }

.btn-success {
    background: var(--success);
    color: var(--white);
}
.btn-success:hover { background: #15803d; }

.btn-danger {
    background: var(--danger);
    color: var(--white);
}
.btn-danger:hover { background: #b91c1c; }

.btn-warning {
    background: var(--warning);
    color: var(--white);
}
.btn-warning:hover { background: #b45309; }

.btn-outline {
    background: var(--white);
    color: var(--gray-700);
    border-color: var(--gray-300);
}
.btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
}

.btn-sm { padding: 5px 10px; font-size: 0.8rem; }
.btn-lg { padding: 12px 24px; font-size: 1rem; }
.btn-block { display: flex; width: 100%; }

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

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.form-group .required::after {
    content: ' *';
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius);
    color: var(--gray-800);
    background: var(--white);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}

.form-control:disabled,
.form-control[readonly] {
    background: var(--gray-100);
    color: var(--gray-500);
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236b7280' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

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

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

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
}

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

.form-hint {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 4px;
}

.form-error {
    font-size: 0.8rem;
    color: var(--danger);
    margin-top: 4px;
}

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

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--gray-50);
}

.card-header h3 {
    font-size: 1rem;
    color: var(--gray-900);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* === Tables === */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    background: var(--white);
}

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

.table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--gray-600);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.table td {
    padding: 10px 16px;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.875rem;
}

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

.table tbody tr:last-child td {
    border-bottom: none;
}

.table .empty-row td {
    text-align: center;
    color: var(--gray-400);
    padding: 32px 16px;
}

/* === Badges === */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.status-pending {
    background: #fef3c7;
    color: #92400e;
}

.status-info,
.status-collected,
.status-received {
    background: #dbeafe;
    color: #1e40af;
}

.status-warning,
.status-in-progress,
.status-processing,
.status-partial,
.status-processed {
    background: #fef3c7;
    color: #92400e;
}

.status-success,
.status-completed,
.status-paid,
.status-active,
.status-normal,
.status-approved {
    background: #dcfce7;
    color: #166534;
}

.status-primary,
.status-dispatched {
    background: #dbeafe;
    color: #1e40af;
}

.status-danger,
.status-cancelled,
.status-unpaid,
.status-inactive,
.status-low,
.status-high,
.status-rejected {
    background: #fee2e2;
    color: #991b1b;
}

.status-critical {
    background: #fce7f3;
    color: #9d174d;
}

/* === Alerts === */
.alert {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    margin-bottom: 16px;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid #bbf7d0;
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid #fecaca;
}

.alert-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid #fde68a;
}

.alert-info {
    background: var(--info-bg);
    color: var(--info);
    border: 1px solid #a5f3fc;
}

.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    color: inherit;
    opacity: 0.6;
    padding: 0 4px;
}

.alert-close:hover {
    opacity: 1;
}

/* === Modals === */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

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

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 520px;
    max-height: 85vh;
    overflow-y: auto;
    animation: slideUp 0.2s ease;
}

@keyframes slideUp {
    from { transform: translateY(24px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.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: 1.125rem;
    color: var(--gray-900);
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    font-size: 1.5rem;
    padding: 4px;
    line-height: 0.5;
}

.modal-close:hover { color: var(--gray-700); }

.modal-body {
    padding: 24px;
}

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

/* === Tabs === */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 20px;
}

.tab {
    padding: 10px 20px;
    font-weight: 500;
    color: var(--gray-500);
    cursor: pointer;
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition);
}

.tab:hover { color: var(--gray-700); }

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* === Search Bar === */
.search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-bar .form-control {
    max-width: 300px;
}

.search-bar select.form-control {
    max-width: 200px;
}

/* === Pagination === */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 16px;
}

.pagination a, .pagination span {
    padding: 8px 14px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.85rem;
    border: 1px solid var(--gray-200);
    color: var(--gray-700);
    background: var(--white);
    transition: all var(--transition);
    text-decoration: none;
}

.pagination a:hover {
    background: var(--gray-100);
}

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

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

/* === Filters Bar === */
.filters-bar {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    padding: 16px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    margin-bottom: 16px;
}

.filters-bar label {
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--gray-600);
}

/* ============================================
   PAGE SPECIFIC STYLES
   ============================================ */

/* === Patient Detail === */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: 0.8rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.detail-value {
    font-weight: 500;
    color: var(--gray-800);
}

/* === Results Table === */
.results-table td.result-value {
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

.results-table .flag-normal { color: var(--success); }
.results-table .flag-low { color: var(--danger); }
.results-table .flag-high { color: var(--danger); }
.results-table .flag-critical { color: #9d174d; font-weight: 700; }

/* === Invoice Preview === */
.invoice-preview {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.invoice-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--gray-200);
}

.invoice-from h3 {
    color: var(--primary);
    margin-bottom: 8px;
}

.invoice-from p {
    color: var(--gray-600);
    font-size: 0.85rem;
    line-height: 1.6;
}

.invoice-to {
    text-align: right;
}

.invoice-to h4 {
    color: var(--gray-800);
    margin-bottom: 4px;
}

.invoice-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

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

.invoice-table th {
    background: var(--gray-100);
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    font-size: 0.85rem;
    border-bottom: 2px solid var(--gray-300);
}

.invoice-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--gray-200);
}

.invoice-totals {
    margin-top: 20px;
    text-align: right;
}

.invoice-totals p {
    margin-bottom: 4px;
    font-size: 0.9rem;
}

.invoice-totals .total {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gray-900);
    border-top: 2px solid var(--gray-300);
    padding-top: 8px;
    margin-top: 8px;
}

/* === Reports === */
.report-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 24px;
    transition: all var(--transition);
    cursor: pointer;
    text-decoration: none;
    display: block;
    color: var(--gray-700);
}

.report-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.report-card svg {
    margin-bottom: 12px;
    color: var(--primary);
}

.report-card h4 {
    margin-bottom: 4px;
    color: var(--gray-900);
}

.report-card p {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

/* === Dashboard Summary Numbers === */
.summary-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.summary-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
}

.summary-card .number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
}

.summary-card .label {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 4px;
}

/* === Print Styles === */
@media print {
    .sidebar, .topbar, .btn, .sidebar-toggle, .alert {
        display: none !important;
    }

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

    .page-content {
        padding: 0;
    }

    .card, .invoice-preview {
        border: none;
        box-shadow: none;
    }
}

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

    .sidebar-collapsed .sidebar,
    .sidebar-open .sidebar {
        transform: translateX(0);
        width: var(--sidebar-width);
    }

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

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

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

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

    .page-content {
        padding: 16px;
    }

    .table th, .table td {
        padding: 8px 12px;
    }

    .topbar-date {
        display: none;
    }
}

@media (max-width: 480px) {
    .stats-grid,
    .quick-actions {
        grid-template-columns: 1fr;
    }

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

    .modal {
        width: 95%;
        max-width: none;
    }
}

/* === Utilities === */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mr-1 { margin-right: 8px; }
.mr-2 { margin-right: 16px; }
.ml-auto { margin-left: auto; }
.p-0 { padding: 0; }
.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.p-3 { padding: 24px; }
.p-4 { padding: 32px; }
.w-full { width: 100%; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.hidden { display: none; }

/* === Loading Spinner === */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* === Empty State === */
.empty-state {
    text-align: center;
    padding: 48px 20px;
}

.empty-state svg {
    margin-bottom: 16px;
    color: var(--gray-300);
}

.empty-state h4 {
    color: var(--gray-600);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--gray-400);
    font-size: 0.9rem;
    margin-bottom: 20px;
}