/* AI99 - Claude Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Claude Color Palette */
  --color-bg: #f5f4ed;
  --color-ivory: #faf9f5;
  --color-white: #ffffff;
  --color-sand: #e8e6dc;
  --color-border: #f0eee6;
  --color-border-warm: #e8e6dc;
  --color-text: #141413;
  --color-text-secondary: #5e5d59;
  --color-text-tertiary: #87867f;
  --color-dark: #30302e;
  --color-deep-dark: #141413;
  --color-brand: #c96442;
  --color-brand-light: #d97757;
  --color-warm-silver: #b0aea5;
  --color-ring: #d1cfc5;
  --color-ring-deep: #c2c0b6;
  
  /* Typography */
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  
  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-3xl: 32px;
  
  /* Shadows */
  --shadow-ring: 0px 0px 0px 1px var(--color-ring);
  --shadow-whisper: 0 4px 24px rgba(0,0,0,0.05);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.2;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1em; }

a {
  color: var(--color-brand);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-brand-light);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  padding: var(--space-md) 0;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-logo .logo-icon {
  width: 32px;
  height: 32px;
  background: var(--color-brand);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.nav-link {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-text);
}

.nav-link-btn {
  background: var(--color-brand);
  color: white !important;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  font-weight: 500;
}

.nav-link-btn:hover {
  background: var(--color-brand-light);
}

/* Hero Section */
.hero {
  padding: var(--space-3xl) 0;
  text-align: center;
  background: var(--color-bg);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

.hero p {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.hero-badges {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background: var(--color-sand);
  border-radius: var(--radius-2xl);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.badge-primary {
  background: var(--color-brand);
  color: white;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  font-family: var(--font-sans);
}

.btn-primary {
  background: var(--color-brand);
  color: white;
  box-shadow: var(--shadow-ring);
}

.btn-primary:hover {
  background: var(--color-brand-light);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-sand);
  color: var(--color-text);
  box-shadow: var(--shadow-ring);
}

.btn-secondary:hover {
  background: var(--color-border-warm);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-warm);
}

.btn-outline:hover {
  background: var(--color-sand);
}

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.875rem;
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1.1rem;
}

/* Category Tabs */
.categories {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-lg) 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.categories::-webkit-scrollbar {
  display: none;
}

.category-tab {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-2xl);
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.category-tab:hover {
  border-color: var(--color-ring);
}

.category-tab.active {
  background: var(--color-text);
  color: var(--color-ivory);
  border-color: var(--color-text);
}

/* Article Cards */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
}

.article-card {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  transition: all 0.2s;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

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

.article-card-featured {
  grid-column: span 2;
  background: var(--color-text);
  color: var(--color-ivory);
  border-color: var(--color-text);
}

.article-card-featured .article-meta,
.article-card-featured .article-excerpt {
  color: var(--color-warm-silver);
}

.article-category {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-brand);
  margin-bottom: var(--space-sm);
  font-weight: 500;
}

.article-card-featured .article-category {
  color: var(--color-brand-light);
}

.article-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.article-excerpt {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
  flex-grow: 1;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-text-tertiary);
}

.article-source {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.article-stats {
  display: flex;
  gap: var(--space-md);
}

.article-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.article-action-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  background: transparent;
  border: none;
  color: var(--color-text-tertiary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.article-action-btn:hover {
  background: var(--color-sand);
  color: var(--color-text);
}

.article-action-btn.liked {
  color: var(--color-brand);
}

/* Article Detail Page */
.article-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
}

.article-header {
  margin-bottom: var(--space-xl);
}

.article-header .article-category {
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
}

.article-header h1 {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.article-summary {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.article-content {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-text);
}

.article-content p {
  margin-bottom: 1.5em;
}

.article-content h2 {
  margin-top: 2em;
  margin-bottom: 1em;
}

.article-content ul, .article-content ol {
  margin-left: 1.5em;
  margin-bottom: 1.5em;
}

.article-content li {
  margin-bottom: 0.5em;
}

.article-content blockquote {
  border-left: 3px solid var(--color-brand);
  padding-left: var(--space-lg);
  margin: var(--space-lg) 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

.article-content pre {
  background: var(--color-deep-dark);
  color: var(--color-ivory);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  margin: var(--space-lg) 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.article-content code {
  font-family: var(--font-mono);
  background: var(--color-sand);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
}

.article-content pre code {
  background: transparent;
  padding: 0;
}

.article-footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.article-tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.tag {
  padding: var(--space-xs) var(--space-md);
  background: var(--color-sand);
  border-radius: var(--radius-2xl);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.back-link:hover {
  color: var(--color-text);
}

/* Comments Section */
.comments-section {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.comments-section h3 {
  margin-bottom: var(--space-lg);
}

.comment-form {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.comment-form textarea {
  width: 100%;
  min-height: 100px;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-family: var(--font-sans);
  font-size: 1rem;
  resize: vertical;
  margin-bottom: var(--space-md);
  background: var(--color-white);
}

.comment-form textarea:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(201, 100, 66, 0.1);
}

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

.comment {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.comment-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.comment-author {
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.comment-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-brand);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
}

.comment-time {
  font-size: 0.85rem;
  color: var(--color-text-tertiary);
}

.comment-content {
  color: var(--color-text);
  line-height: 1.6;
}

.comment-actions {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.comment-action {
  font-size: 0.85rem;
  color: var(--color-text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.comment-action:hover {
  color: var(--color-text);
}

/* Sidebar */
.sidebar {
  position: sticky;
  top: 80px;
}

.sidebar-card {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.sidebar-card h4 {
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

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

.sidebar-list li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-list li:last-child {
  border-bottom: none;
}

.sidebar-list a {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
}

.sidebar-list a:hover {
  color: var(--color-text);
}

/* Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.stat-card {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-brand);
  font-family: var(--font-mono);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-xs);
}

/* Newsletter */
.newsletter {
  background: var(--color-text);
  color: var(--color-ivory);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  text-align: center;
  margin: var(--space-2xl) 0;
}

.newsletter h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.newsletter p {
  color: var(--color-warm-silver);
  margin-bottom: var(--space-lg);
}

.newsletter-form {
  display: flex;
  gap: var(--space-sm);
  max-width: 400px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: var(--space-md);
  border: 1px solid var(--color-dark);
  border-radius: var(--radius-lg);
  background: var(--color-deep-dark);
  color: var(--color-ivory);
  font-size: 1rem;
}

.newsletter-form input::placeholder {
  color: var(--color-text-tertiary);
}

.newsletter-form button {
  background: var(--color-brand);
  color: white;
  border: none;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-weight: 500;
}

/* Footer */
.footer {
  background: var(--color-ivory);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
  margin-top: var(--space-3xl);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
}

.footer-brand {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-brand p {
  margin-top: var(--space-md);
}

.footer-links h5 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-xl);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 0.85rem;
}

/* Admin Panel */
.admin-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  background: var(--color-deep-dark);
  color: var(--color-ivory);
  padding: var(--space-lg);
}

.admin-sidebar .nav-logo {
  color: var(--color-ivory);
  margin-bottom: var(--space-xl);
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  color: var(--color-warm-silver);
  cursor: pointer;
  transition: all 0.2s;
}

.admin-nav-item:hover, .admin-nav-item.active {
  background: var(--color-dark);
  color: var(--color-ivory);
}

.admin-main {
  background: var(--color-bg);
  padding: var(--space-xl);
  overflow-y: auto;
}

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

.admin-header h2 {
  font-size: 1.5rem;
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.admin-stat-card {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.admin-stat-card .stat-value {
  font-size: 1.5rem;
}

.admin-table {
  width: 100%;
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.admin-table th, .admin-table td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.admin-table th {
  background: var(--color-sand);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

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

.admin-table tr:hover td {
  background: var(--color-border);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-2xl);
  font-size: 0.75rem;
  font-weight: 500;
}

.status-published {
  background: #d4edda;
  color: #155724;
}

.status-draft {
  background: var(--color-sand);
  color: var(--color-text-secondary);
}

.status-featured {
  background: var(--color-brand);
  color: white;
}

/* Form Styles */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-family: var(--font-sans);
  background: var(--color-white);
  transition: all 0.2s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(201, 100, 66, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.form-checkbox input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-brand);
}

/* URL Collector */
.url-collector {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.url-collector h3 {
  margin-bottom: var(--space-lg);
}

.url-input-group {
  display: flex;
  gap: var(--space-sm);
}

.url-input-group .form-input {
  flex: 1;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-ivory);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95);
  transition: transform 0.2s;
}

.modal-overlay.active .modal {
  transform: scale(1);
}

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

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-tertiary);
}

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

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  background: var(--color-text);
  color: var(--color-ivory);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-whisper);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  animation: slideIn 0.3s ease;
}

.toast-success {
  background: #155724;
}

.toast-error {
  background: #b53333;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Mobile Responsive */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  
  .nav-links {
    display: none;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .articles-grid {
    grid-template-columns: 1fr;
  }
  
  .article-card-featured {
    grid-column: span 1;
  }
  
  .footer-inner {
    grid-template-columns: 1fr;
  }
  
  .admin-layout {
    grid-template-columns: 1fr;
  }
  
  .admin-sidebar {
    display: none;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .newsletter-form {
    flex-direction: column;
  }
  
  .url-input-group {
    flex-direction: column;
  }
}

/* Loading State */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-brand);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--color-text-secondary);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

/* VIP Badge */
.vip-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: linear-gradient(135deg, #c96442, #d97757);
  color: white;
  border-radius: var(--radius-2xl);
  font-size: 0.75rem;
  font-weight: 500;
}

.vip-badge svg {
  width: 12px;
  height: 12px;
}

/* Backtest Results */
.backtest-card {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

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

.backtest-title {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.backtest-metric {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.backtest-metric-item {
  text-align: center;
  padding: var(--space-md);
  background: var(--color-sand);
  border-radius: var(--radius-md);
}

.backtest-metric-value {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-brand);
  font-family: var(--font-mono);
}

.backtest-metric-label {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-xs);
}

.positive {
  color: #155724;
}

.negative {
  color: #b53333;
}

/* Chart placeholder */
.chart-placeholder {
  height: 200px;
  background: var(--color-sand);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-tertiary);
  margin: var(--space-md) 0;
}

/* Search */
.search-box {
  position: relative;
  margin-bottom: var(--space-lg);
}

.search-box input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  padding-left: 48px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  font-size: 1rem;
  background: var(--color-ivory);
}

.search-box input:focus {
  outline: none;
  border-color: var(--color-brand);
}

.search-box::before {
  content: "🔍";
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  opacity: 0.5;
}

/* Tabs */
.tabs {
  display: flex;
  gap: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-xl);
}

.tab {
  padding: var(--space-md) var(--space-lg);
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.2s;
}

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

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

/* User Dropdown */
.user-menu {
  position: relative;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-brand);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.user-dropdown {
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: var(--space-sm);
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-whisper);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s;
  z-index: 100;
}

.user-menu:hover .user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-dropdown-item {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all 0.2s;
}

.user-dropdown-item:hover {
  background: var(--color-sand);
  color: var(--color-text);
}

.user-dropdown-item:first-child {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.user-dropdown-item:last-child {
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* =====================
   Mobile-First Layout
   ===================== */

.main-content {
  padding-bottom: 70px; /* Space for tab bar */
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 50;
  padding: var(--space-md) 0;
}

.header-inner {
  max-width: 100%;
  padding: 0 var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.header-logo .logo-icon {
  width: 32px;
  height: 32px;
  background: var(--color-brand);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.9rem;
}

.header-search-btn {
  background: var(--color-sand);
  border: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: 1rem;
}

/* Hero Mobile */
.hero-mobile {
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  background: linear-gradient(180deg, var(--color-ivory) 0%, var(--color-bg) 100%);
}

.hero-mobile h1 {
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--color-brand), var(--color-brand-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-slogan {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.hero-desc {
  font-size: 0.9rem;
  color: var(--color-text-tertiary);
  line-height: 1.6;
}

/* Category Scroll */
.category-scroll {
  padding: 0 var(--space-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.category-scroll::-webkit-scrollbar {
  display: none;
}

.category-tabs {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
}

/* Articles Section */
.articles-section {
  padding: 0 var(--space-lg);
}

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

/* Bottom Tab Bar */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-ivory);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-around;
  padding: var(--space-sm) 0;
  padding-bottom: max(var(--space-sm), env(safe-area-inset-bottom));
  z-index: 100;
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: var(--space-xs) var(--space-md);
  color: var(--color-text-tertiary);
  text-decoration: none;
  transition: color 0.2s;
}

.tab-item.active {
  color: var(--color-brand);
}

.tab-icon {
  font-size: 1.25rem;
}

.tab-label {
  font-size: 0.7rem;
  font-weight: 500;
}

/* Me Page */
.me-page {
  padding-bottom: 70px;
}

.me-header {
  position: relative;
  padding: var(--space-2xl) var(--space-lg) var(--space-xl);
  background: linear-gradient(135deg, var(--color-brand), var(--color-brand-light));
  color: white;
}

.me-header-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}

.me-profile {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.me-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,0.5);
}

.me-info {
  flex: 1;
}

.me-nickname {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.me-vip-level {
  display: flex;
}

.me-vip-level .vip-badge {
  background: rgba(255,255,255,0.2);
  color: white;
}

/* Me Stats */
.me-stats {
  display: flex;
  justify-content: space-around;
  align-items: center;
  padding: var(--space-lg);
  background: var(--color-ivory);
  margin: 0 var(--space-lg);
  margin-top: calc(-1 * var(--space-lg));
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-whisper);
  position: relative;
  z-index: 10;
}

.me-stat-item {
  text-align: center;
  flex: 1;
}

.me-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-brand);
  font-family: var(--font-mono);
}

.me-stat-label {
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-xs);
}

.me-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

/* Me Menu */
.me-menu {
  background: var(--color-ivory);
  border-radius: var(--radius-xl);
  margin: var(--space-lg);
  overflow: hidden;
}

.me-menu-item {
  display: flex;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background 0.2s;
}

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

.me-menu-item:hover {
  background: var(--color-sand);
}

.me-menu-icon {
  font-size: 1.25rem;
  margin-right: var(--space-md);
}

.me-menu-text {
  flex: 1;
  font-size: 0.95rem;
  color: var(--color-text);
}

.me-menu-arrow {
  font-size: 1.25rem;
  color: var(--color-text-tertiary);
}

/* Auth Section */
.me-auth-section {
  padding: var(--space-xl) var(--space-lg);
}

.me-login-btn {
  width: 100%;
}

.me-logout-btn {
  width: 100%;
  background: var(--color-sand);
  color: var(--color-text);
}

/* Zhizhen Page */
.zhizhen-hero {
  background: linear-gradient(180deg, #fef9f3 0%, var(--color-bg) 100%);
}

.zhizhen-section {
  padding: var(--space-lg);
}

.zhizhen-section-title {
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

/* Wisdom Cards */
.wisdom-card {
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  cursor: pointer;
  transition: all 0.2s;
}

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

.wisdom-card-featured {
  background: var(--color-text);
  color: var(--color-ivory);
  border-color: var(--color-text);
}

.wisdom-card-featured .wisdom-meta {
  color: var(--color-warm-silver);
}

.wisdom-category {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-brand);
  background: rgba(201, 100, 66, 0.1);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

.wisdom-card-featured .wisdom-category {
  background: rgba(255,255,255,0.2);
  color: white;
}

.wisdom-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.wisdom-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.wisdom-meta {
  display: flex;
  gap: var(--space-lg);
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
}

/* Wisdom Categories */
.wisdom-categories {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.wisdom-category-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s;
}

.wisdom-category-item:hover {
  background: var(--color-sand);
}

.wisdom-cat-icon {
  font-size: 1.5rem;
}

.wisdom-cat-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

/* VIP Badge Variations */
.vip-badge.vip-gold {
  background: linear-gradient(135deg, #ffd700, #ffb347);
  color: #5c4d00;
}

.vip-badge.vip-admin {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
}

/* Search Modal */
.search-modal {
  max-width: 100%;
  width: 100%;
  height: 100vh;
  border-radius: 0;
  display: flex;
  flex-direction: column;
}

.search-box-mobile {
  margin: var(--space-lg) 0;
}

.search-box-mobile input {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  background: var(--color-ivory);
}

.search-results {
  flex: 1;
  overflow-y: auto;
}

/* Desktop adjustments */
@media (min-width: 769px) {
  .tab-bar {
    display: none; /* Hide tab bar on desktop */
  }
  
  .main-content {
    padding-bottom: 0;
  }
  
  .me-page {
    padding-bottom: 0;
  }
  
  .hero-mobile h1 {
    font-size: 2.5rem;
  }
  
  .hero-slogan {
    font-size: 1.25rem;
  }
}

/* =====================
   Header Actions
   ===================== */

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

.header-btn {
  background: var(--color-sand);
  border: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s;
}

.header-btn:hover {
  background: var(--color-border-warm);
}

/* =====================
   Drawer Menu (Half-screen Slide-out)
   ===================== */

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 75%;
  max-width: 320px;
  height: 100vh;
  background: var(--color-ivory);
  z-index: 201;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
}

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

.drawer-header {
  padding: var(--space-xl) var(--space-lg);
  background: linear-gradient(135deg, var(--color-brand), var(--color-brand-light));
  color: white;
}

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

.drawer-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 600;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.drawer-user-info {
  flex: 1;
}

.drawer-nickname {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.drawer-vip {
  font-size: 0.8rem;
  opacity: 0.8;
}

.drawer-menu {
  padding: var(--space-md) 0;
}

.drawer-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  color: var(--color-text);
  text-decoration: none;
  transition: background 0.2s;
}

.drawer-item:hover {
  background: var(--color-sand);
}

.drawer-icon {
  font-size: 1.25rem;
  width: 28px;
  text-align: center;
}

.drawer-text {
  font-size: 0.95rem;
  flex: 1;
}

.drawer-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-sm) var(--space-lg);
}

.drawer-footer {
  margin-top: auto;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border);
}

/* Prevent body scroll when drawer open */
body.drawer-open {
  overflow: hidden;
}

/* Desktop: hide mobile elements */
@media (min-width: 769px) {
  .drawer {
    display: none;
  }
  
  .drawer-overlay {
    display: none;
  }
}

/* =====================
   Banner Carousel
   ===================== */

.banner-carousel {
  position: relative;
  overflow: hidden;
  height: 200px;
}

.banner-track {
  display: flex;
  transition: transform 0.4s ease;
  height: 100%;
  width: 100%;
}

.banner-slide {
  min-width: 100%;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  box-sizing: border-box;
  flex-shrink: 0;
}

.banner-content {
  text-align: center;
  color: white;
}

.banner-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.banner-subtitle {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
  opacity: 0.95;
}

.banner-desc {
  font-size: 0.85rem;
  opacity: 0.85;
}

.banner-dots {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-sm);
}

.banner-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: all 0.3s;
}

.banner-dot.active {
  background: white;
  transform: scale(1.2);
}

/* Me Page Additional Styles */
.me-page-full {
  padding-bottom: 70px;
  min-height: 100vh;
  background: var(--color-bg);
}

.me-page-header {
  background: linear-gradient(135deg, var(--color-brand), var(--color-brand-light));
  padding: var(--space-xl) var(--space-lg);
  padding-top: calc(var(--space-xl) + env(safe-area-inset-top));
  color: white;
}

.me-page-header h1 {
  font-size: 1.25rem;
  font-weight: 600;
}

.me-page-content {
  padding: var(--space-lg);
}

.me-page-menu {
  background: var(--color-ivory);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.me-page-menu-item {
  display: flex;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: background 0.2s;
}

.me-page-menu-item:last-child {
  border-bottom: none;
}

.me-page-menu-item:hover {
  background: var(--color-sand);
}

.me-page-menu-icon {
  font-size: 1.25rem;
  width: 36px;
}

.me-page-menu-text {
  flex: 1;
  font-size: 0.95rem;
  color: var(--color-text);
}

.me-page-menu-arrow {
  color: var(--color-text-tertiary);
  font-size: 1.25rem;
}

.me-page-menu-value {
  color: var(--color-text-tertiary);
  font-size: 0.9rem;
  margin-right: var(--space-sm);
}

.me-page-section-title {
  font-size: 0.85rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-sm);
  padding-left: var(--space-lg);
}

/* Form Page Styles */
.form-page {
  padding-bottom: 70px;
  min-height: 100vh;
  background: var(--color-bg);
}

.form-page-header {
  background: var(--color-ivory);
  padding: var(--space-md) var(--space-lg);
  padding-top: calc(var(--space-md) + env(safe-area-inset-top));
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.form-page-back {
  font-size: 1.5rem;
  color: var(--color-text);
  text-decoration: none;
}

.form-page-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-page-content {
  padding: var(--space-lg);
}

.form-page-section {
  background: var(--color-ivory);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.form-page-section-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.form-page-row {
  display: flex;
  align-items: center;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.form-page-row:last-child {
  border-bottom: none;
}

.form-page-row-label {
  width: 100px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.form-page-row-value {
  flex: 1;
  font-size: 0.95rem;
  color: var(--color-text);
}

/* About Page */
.about-page {
  padding-bottom: 70px;
  min-height: 100vh;
  background: var(--color-bg);
}

.about-header {
  background: linear-gradient(135deg, var(--color-brand), var(--color-brand-light));
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  color: white;
}

.about-logo {
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,0.2);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0 auto var(--space-lg);
}

.about-name {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.about-version {
  opacity: 0.8;
  font-size: 0.9rem;
}

.about-content {
  padding: var(--space-lg);
}

.about-card {
  background: var(--color-ivory);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.about-card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.about-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.about-card p:last-child {
  margin-bottom: 0;
}

.about-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.about-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  color: var(--color-brand);
  font-size: 0.9rem;
}

/* Feedback Page */
.feedback-page {
  padding-bottom: 70px;
  min-height: 100vh;
  background: var(--color-bg);
}

.feedback-content {
  padding: var(--space-lg);
}

.feedback-card {
  background: var(--color-ivory);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.feedback-card h3 {
  font-size: 1rem;
  margin-bottom: var(--space-md);
}

.feedback-textarea {
  width: 100%;
  min-height: 150px;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  resize: vertical;
  background: var(--color-white);
}

.feedback-textarea:focus {
  outline: none;
  border-color: var(--color-brand);
}

.feedback-type {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

.feedback-type-btn {
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-2xl);
  background: var(--color-sand);
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.feedback-type-btn.active {
  background: var(--color-brand);
  color: white;
  border-color: var(--color-brand);
}

.feedback-submit {
  margin-top: var(--space-lg);
}

/* VIP Page */
.vip-page {
  padding-bottom: 70px;
  min-height: 100vh;
  background: var(--color-bg);
}

.vip-hero {
  background: linear-gradient(135deg, #ffd700, #ffb347);
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  color: #5c4d00;
}

.vip-hero-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.vip-hero h1 {
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
}

.vip-hero p {
  opacity: 0.8;
}

.vip-plans {
  padding: var(--space-lg);
  display: grid;
  gap: var(--space-lg);
}

.vip-plan {
  background: var(--color-ivory);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  border: 2px solid var(--color-border);
}

.vip-plan.popular {
  border-color: var(--color-brand);
  position: relative;
}

.vip-plan-badge {
  position: absolute;
  top: -10px;
  right: var(--space-lg);
  background: var(--color-brand);
  color: white;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-2xl);
  font-size: 0.75rem;
  font-weight: 600;
}

.vip-plan-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.vip-plan-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-brand);
  margin-bottom: var(--space-md);
}

.vip-plan-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-tertiary);
}

.vip-plan-features {
  list-style: none;
}

.vip-plan-features li {
  padding: var(--space-xs) 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.vip-plan-features li::before {
  content: "✓ ";
  color: #38ef7d;
  margin-right: var(--space-xs);
}

.vip-plan-btn {
  width: 100%;
  margin-top: var(--space-lg);
}

/* Points Page */
.points-page {
  padding-bottom: 70px;
  min-height: 100vh;
  background: var(--color-bg);
}

.points-header {
  background: linear-gradient(135deg, var(--color-brand), var(--color-brand-light));
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  color: white;
}

.points-value {
  font-size: 3rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.points-label {
  opacity: 0.8;
  font-size: 0.9rem;
}

.points-content {
  padding: var(--space-lg);
}

.points-card {
  background: var(--color-ivory);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.points-card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.points-item {
  display: flex;
  align-items: center;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.points-item-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-sand);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: var(--space-md);
}

.points-item-info {
  flex: 1;
}

.points-item-name {
  font-size: 0.95rem;
  font-weight: 500;
}

.points-item-time {
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
}

.points-item-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-brand);
}

.points-item-value.negative {
  color: #b53333;
}

/* History Page */
.history-page {
  padding-bottom: 70px;
  min-height: 100vh;
  background: var(--color-bg);
}

.history-header {
  background: var(--color-ivory);
  padding: var(--space-md) var(--space-lg);
  padding-top: calc(var(--space-md) + env(safe-area-inset-top));
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.history-header h1 {
  font-size: 1.1rem;
  font-weight: 600;
}

.history-clear {
  font-size: 0.85rem;
  color: var(--color-brand);
  cursor: pointer;
}

.history-content {
  padding: var(--space-lg);
}

.history-item {
  background: var(--color-ivory);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  cursor: pointer;
  transition: all 0.2s;
}

.history-item:hover {
  background: var(--color-sand);
}

.history-item-title {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.history-item-meta {
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
}

/* Favorites Page */
.favorites-page {
  padding-bottom: 70px;
  min-height: 100vh;
  background: var(--color-bg);
}

.favorites-header {
  background: var(--color-ivory);
  padding: var(--space-md) var(--space-lg);
  padding-top: calc(var(--space-md) + env(safe-area-inset-top));
  border-bottom: 1px solid var(--color-border);
}

.favorites-header h1 {
  font-size: 1.1rem;
  font-weight: 600;
}

.favorites-content {
  padding: var(--space-lg);
}

.favorites-item {
  background: var(--color-ivory);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  cursor: pointer;
  display: flex;
  gap: var(--space-md);
  transition: all 0.2s;
}

.favorites-item:hover {
  background: var(--color-sand);
}

.favorites-item-content {
  flex: 1;
}

.favorites-item-title {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.favorites-item-meta {
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
}

.favorites-item-remove {
  color: var(--color-text-tertiary);
  font-size: 1.25rem;
  padding: var(--space-xs);
}

/* Desktop adjustments */
@media (min-width: 769px) {
  .banner-carousel {
    height: 280px;
  }
  
  .banner-slide {
    height: 280px;
  }
  
  .banner-title {
    font-size: 2.5rem;
  }
  
  .banner-subtitle {
    font-size: 1.25rem;
  }
  
  .banner-desc {
    font-size: 1rem;
  }
  
  .banner-slide {
    width: 25%;
  }
}