/**
 * CRM Dashboard Styles - Modern Edition
 * Clean, neutral dashboard design with CSS Grid/Flexbox
 */

/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    /* Neutral Color Palette */
    --primary-color: #0f172a;
    --primary-hover: #1e293b;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    
    --success-color: #059669;
    --success-bg: #ecfdf5;
    --warning-color: #d97706;
    --warning-bg: #fffbeb;
    --danger-color: #dc2626;
    --danger-bg: #fef2f2;
    --info-color: #0284c7;
    --info-bg: #f0f9ff;
    
    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    
    /* Border & UI */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --border-radius: 6px;
    --border-radius-lg: 10px;
    --border-radius-xl: 16px;
    
    /* Shadows - Subtle */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.03);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.06), 0 1px 2px -1px rgb(0 0 0 / 0.06);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
    --shadow-focus: 0 0 0 3px rgb(59 130 246 / 0.15);
    
    /* Spacing Scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    
    /* Layout */
    --navbar-height: 56px;
    --sidebar-width: 240px;
    --container-max: 1280px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    min-height: 100vh;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-hover);
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.125rem; }

p {
    color: var(--text-secondary);
}

.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-muted { color: var(--text-muted); }

/* ============================================
   Layout - CSS Grid Based
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.main-content {
    padding-top: calc(var(--navbar-height) + var(--space-8));
    padding-bottom: var(--space-12);
    min-height: 100vh;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* ============================================
   Navigation - Modern Minimal
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 var(--space-6);
    z-index: 1000;
}

.navbar-brand h1 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.03em;
}

.navbar-menu {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--space-1);
    margin-left: var(--space-10);
}

.nav-link {
    padding: var(--space-2) var(--space-3);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    line-height: 1.3;
}

.user-email {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.user-role {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

/* ============================================
   Buttons - Clean & Modern
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.btn:focus-visible {
    outline: none;
    box-shadow: var(--shadow-focus);
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-inverse);
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-danger {
    background: var(--danger-color);
    color: var(--text-inverse);
}

.btn-danger:hover:not(:disabled) {
    background: #b91c1c;
}

.btn-success {
    background: var(--success-color);
    color: var(--text-inverse);
}

.btn-success:hover:not(:disabled) {
    background: #047857;
}

.btn-warning {
    background: #f59e0b;
    color: #1f2937;
}

.btn-warning:hover:not(:disabled) {
    background: #d97706;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-sm {
    padding: var(--space-1) var(--space-2);
    font-size: 0.75rem;
}

/* Icon Buttons */
.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    border-radius: var(--border-radius);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-icon.btn-icon-edit:hover {
    background: var(--accent-color);
    color: var(--text-inverse);
}

.btn-icon.btn-icon-delete:hover {
    background: var(--danger-color);
    color: var(--text-inverse);
}

.btn-icon svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.btn-icon.btn-icon-sm {
    width: 28px;
    height: 28px;
}

.btn-icon.btn-icon-sm svg {
    width: 14px;
    height: 14px;
}

/* Modal header with title and actions */
.modal-header-with-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.modal-header-with-actions h2 {
    margin: 0;
}

.modal-header-actions {
    display: flex;
    gap: var(--space-1);
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ============================================
   Forms - Clean Style
   ============================================ */
.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: 0.9375rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: var(--shadow-focus);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    font-size: 0.875rem;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-color);
}

.inline-form {
    display: flex;
    gap: var(--space-4);
    align-items: flex-end;
}

.inline-form .form-group {
    flex: 1;
    margin-bottom: 0;
}

/* ============================================
   Cards - Minimal Style
   ============================================ */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.card-header h3 {
    margin: 0;
}

.card-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.info-card {
    background: var(--info-bg);
    border-color: transparent;
}

.info-card h3 {
    color: var(--info-color);
    font-size: 0.9375rem;
    margin-bottom: var(--space-3);
}

.info-card ul {
    padding-left: var(--space-5);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.info-card li {
    margin-bottom: var(--space-1);
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
    margin-bottom: var(--space-8);
}

.page-header h2 {
    margin-bottom: var(--space-1);
}

.page-header p {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.page-header .btn {
    margin-top: var(--space-2);
}

/* ============================================
   Stats Grid - Modern Cards
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    position: relative;
    transition: border-color var(--transition-fast);
}

.stat-card:hover {
    border-color: var(--text-muted);
}

.stat-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    background: var(--bg-tertiary);
}

.stat-content h3 {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    margin: 0;
}

.stat-content p {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin: 0;
}

.stat-link {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-top: auto;
}

.stat-link:hover {
    color: var(--accent-color);
}

/* ============================================
   Tables - Clean Design
   ============================================ */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.data-table th {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background: transparent;
    border-bottom-color: var(--border-color);
}

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

.data-table tbody tr:hover {
    background: var(--bg-secondary);
}

.data-table td a {
    font-weight: 500;
    color: var(--text-primary);
}

.data-table td a:hover {
    color: var(--accent-color);
}

.data-table.compact th,
.data-table.compact td {
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
}

.actions {
    display: flex;
    gap: var(--space-2);
}

.inactive-row {
    opacity: 0.5;
}

.suspended td {
    background: var(--danger-bg);
}

/* ============================================
   Status & Role Badges - Minimal
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    border-radius: 4px;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    border-radius: 4px;
}

.status-active, .status-new {
    background: var(--success-bg);
    color: var(--success-color);
}

.status-inactive, .status-suspended, .status-lost {
    background: var(--danger-bg);
    color: var(--danger-color);
}

.status-prospect, .status-contacted {
    background: var(--warning-bg);
    color: var(--warning-color);
}

.status-qualified {
    background: var(--info-bg);
    color: var(--info-color);
}

.status-converted {
    background: var(--success-bg);
    color: var(--success-color);
}

.role-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    border-radius: 4px;
}

.role-admin {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.role-user {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

/* ============================================
   Filters
   ============================================ */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.filters select,
.filters input {
    padding: var(--space-2) var(--space-3);
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    transition: border-color var(--transition-fast);
}

.filters select:focus,
.filters input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.filters input {
    flex: 1;
    min-width: 200px;
    max-width: 320px;
}

/* ============================================
   Modals - Clean Overlay
   ============================================ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgb(15 23 42 / 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--space-6);
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-content.modal-large {
    max-width: 720px;
}

.modal-content.modal-small {
    max-width: 400px;
}

.modal-body {
    padding: var(--space-4) var(--space-6);
}

.modal-body p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.125rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-muted);
    padding: var(--space-1);
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-content form,
.modal-content > div:not(.modal-header):not(.modal-body) {
    padding: var(--space-6);
}

.modal-actions {
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
    padding: 0 var(--space-6) var(--space-6) var(--space-6);
    margin-top: 0;
}

/* ============================================
   Detail View
   ============================================ */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.detail-item {
    padding: var(--space-2) 0;
}

.detail-item.full-width {
    grid-column: 1 / -1;
}

.detail-item label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-1);
}

.detail-item p,
.detail-item span {
    color: var(--text-primary);
}

.detail-notes {
    margin-top: var(--space-5);
    padding-top: var(--space-5);
    border-top: 1px solid var(--border-color);
}

.detail-notes label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-1);
}

.detail-notes p {
    white-space: pre-wrap;
}

/* ============================================
   Notes Section
   ============================================ */
.notes-section {
    border-top: 1px solid var(--border-color);
    padding-top: var(--space-6);
    margin-top: var(--space-6);
}

.notes-section h3 {
    margin-bottom: var(--space-4);
}

.note-form {
    margin-bottom: var(--space-6);
}

.note-form textarea {
    width: 100%;
    padding: var(--space-3);
    font-size: 0.875rem;
    font-family: inherit;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: var(--space-3);
    resize: vertical;
    min-height: 80px;
    transition: border-color var(--transition-fast);
}

.note-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.notes-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.note-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    padding: var(--space-4);
}

.note-card.own-note {
    border-left: 3px solid var(--accent-color);
}

.note-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-2);
    font-size: 0.75rem;
}

.note-author {
    font-weight: 600;
    color: var(--text-primary);
}

.note-date {
    color: var(--text-muted);
}

.note-content {
    white-space: pre-wrap;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.note-actions {
    margin-top: var(--space-3);
    display: flex;
    gap: var(--space-2);
}

/* ============================================
   Auth Pages - Clean Minimal
   ============================================ */
.auth-page {
    background: var(--bg-secondary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
}

.auth-container {
    width: 100%;
    max-width: 400px;
}

.auth-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    padding: var(--space-8);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-header h1 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.auth-form {
    margin-top: var(--space-6);
}

.auth-footer {
    margin-top: var(--space-6);
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.auth-footer a {
    color: var(--accent-color);
}

.auth-message {
    text-align: center;
    padding: var(--space-6);
}

.auth-message .message-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
}

.auth-message h2 {
    margin-bottom: var(--space-2);
}

.auth-message p {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

/* ============================================
   Alerts
   ============================================ */
.alert {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--border-radius);
    margin-bottom: var(--space-4);
    font-size: 0.875rem;
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger-color);
}

.alert-success {
    background: var(--success-bg);
    color: var(--success-color);
}

.alert-info {
    background: var(--info-bg);
    color: var(--info-color);
}

/* ============================================
   Loading & Empty States
   ============================================ */
.loading {
    color: var(--text-muted);
    padding: var(--space-6);
    text-align: center;
}

.empty {
    color: var(--text-muted);
    padding: var(--space-8);
    text-align: center;
}

.error {
    color: var(--danger-color);
    padding: var(--space-6);
    text-align: center;
}

/* Full-page Loading State */
#loading-state {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-secondary);
    z-index: 5000;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-5);
}

#loading-state .loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--text-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

#loading-state .loading-text {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Full-page Error State */
#error-state {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-secondary);
    z-index: 5000;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.error-container {
    text-align: center;
    padding: var(--space-10);
    max-width: 400px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
}

.error-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
}

.error-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.error-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    line-height: 1.6;
    font-size: 0.9375rem;
}

.error-code {
    font-size: 0.6875rem;
    color: var(--text-muted);
    font-family: ui-monospace, monospace;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-6);
}

/* Protected content hidden by default */
#protected-content {
    display: none;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgb(248 250 252 / 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--border-color);
    border-top-color: var(--text-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

.loading-message {
    margin-top: var(--space-4);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ============================================
   Notifications - Minimal Toast
   ============================================ */
#notification-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: 4000;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.notification {
    padding: var(--space-3) var(--space-5);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.2s ease;
}

.notification-success {
    background: var(--text-primary);
    color: var(--text-inverse);
}

.notification-error {
    background: var(--danger-color);
    color: var(--text-inverse);
}

.notification.fade-out {
    animation: fadeOut 0.2s ease forwards;
}

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

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: translateY(-5px);
    }
}

/* ============================================
   Dashboard Section
   ============================================ */
.dashboard-section {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
}

.dashboard-section h3 {
    margin-bottom: var(--space-4);
    font-size: 0.9375rem;
}

/* ============================================
   Role Select in Admin
   ============================================ */
.role-select {
    padding: var(--space-1) var(--space-2);
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.role-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-4);
    }
}

@media (max-width: 768px) {
    :root {
        --navbar-height: auto;
    }
    
    .navbar {
        flex-wrap: wrap;
        padding: var(--space-4);
        gap: var(--space-4);
    }

    .navbar-menu {
        order: 3;
        width: 100%;
        margin-left: 0;
        overflow-x: auto;
        padding-bottom: var(--space-1);
        -webkit-overflow-scrolling: touch;
    }

    .navbar-user {
        margin-left: auto;
    }

    .main-content {
        padding-top: 140px;
    }

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

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

    .inline-form {
        flex-direction: column;
        gap: var(--space-3);
    }

    .inline-form .btn {
        width: 100%;
    }

    .data-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .actions {
        flex-wrap: wrap;
    }

    .modal {
        padding: var(--space-4);
    }

    .modal-content {
        border-radius: var(--border-radius-lg);
    }
    
    #notification-container {
        left: var(--space-4);
        right: var(--space-4);
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .navbar,
    .btn,
    .filters,
    .actions,
    #notification-container,
    #loading-state,
    #error-state {
        display: none !important;
    }

    .main-content {
        padding-top: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
    }
    
    body {
        background: white;
    }
}