/* ============================================
   RECOVERY RESOURCE GUIDE - Design Tokens & Styles
   ============================================ */

/* --- Type Scale --- */
:root {
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
}

/* --- Light Mode --- */
:root, [data-theme="light"] {
  --color-bg:             #f7f6f2;
  --color-surface:        #ffffff;
  --color-surface-2:      #f9f8f5;
  --color-surface-offset: #f0efeb;
  --color-divider:        #e5e4e0;
  --color-border:         #d4d1ca;
  --color-text:           #1a1a1a;
  --color-text-muted:     #6b6b6b;
  --color-text-faint:     #9ca3af;
  --color-text-inverse:   #ffffff;
  --color-primary:        #0d9488;
  --color-primary-hover:  #0b7a70;
  --color-primary-active: #096b62;
  --color-primary-light:  #ccfbf1;
  --color-primary-bg:     #f0fdfa;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --color-bg:             #0f0f0f;
  --color-surface:        #1a1a1a;
  --color-surface-2:      #222222;
  --color-surface-offset: #181818;
  --color-divider:        #2a2a2a;
  --color-border:         #333333;
  --color-text:           #e5e5e5;
  --color-text-muted:     #a0a0a0;
  --color-text-faint:     #666666;
  --color-text-inverse:   #1a1a1a;
  --color-primary:        #2dd4bf;
  --color-primary-hover:  #5eead4;
  --color-primary-active: #99f6e4;
  --color-primary-light:  #0d3331;
  --color-primary-bg:     #0a2725;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #0f0f0f;
    --color-surface:        #1a1a1a;
    --color-surface-2:      #222222;
    --color-surface-offset: #181818;
    --color-divider:        #2a2a2a;
    --color-border:         #333333;
    --color-text:           #e5e5e5;
    --color-text-muted:     #a0a0a0;
    --color-text-faint:     #666666;
    --color-text-inverse:   #1a1a1a;
    --color-primary:        #2dd4bf;
    --color-primary-hover:  #5eead4;
    --color-primary-active: #99f6e4;
    --color-primary-light:  #0d3331;
    --color-primary-bg:     #0a2725;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
  }
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

.section {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
}

.section-header {
  margin-bottom: var(--space-8);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
}

/* ============================================
   HEADER / NAV
   ============================================ */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow var(--transition-interactive);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  white-space: nowrap;
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

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

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  margin-left: var(--space-2);
}

.theme-toggle:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}

/* Mobile nav */
.mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: 3.5rem 0 0 0;
  background: var(--color-bg);
  z-index: 99;
  padding: var(--space-6);
  flex-direction: column;
  gap: var(--space-1);
  border-top: 1px solid var(--color-divider);
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav .nav-link {
  font-size: var(--text-base);
  padding: var(--space-3) var(--space-4);
}

@media (max-width: 768px) {
  .nav { display: none; }
  .mobile-menu-btn { display: inline-flex; }
}

/* ============================================
   HERO
   ============================================ */

.hero {
  padding: clamp(var(--space-16), 10vw, var(--space-24)) 0 clamp(var(--space-12), 6vw, var(--space-16));
  text-align: center;
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.hero-title span {
  color: var(--color-primary);
}

.hero-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.hero-stat {
  text-align: center;
}

.hero-stat-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
}

.hero-stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* ============================================
   SEARCH
   ============================================ */

.search-container {
  max-width: 480px;
  margin: 0 auto var(--space-8);
  position: relative;
}

.search-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  padding-left: var(--space-10);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  color: var(--color-text);
  outline: none;
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 15%, transparent);
}

.search-input::placeholder {
  color: var(--color-text-faint);
}

.search-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-faint);
  width: 18px;
  height: 18px;
  pointer-events: none;
}

/* ============================================
   FILTER BAR
   ============================================ */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  cursor: pointer;
  white-space: nowrap;
}

.filter-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

/* ============================================
   CARDS
   ============================================ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.card-grid--3 {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  cursor: pointer;
  transition: transform var(--transition-interactive),
              box-shadow var(--transition-interactive),
              border-color var(--transition-interactive);
}

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

.card-icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-3);
  line-height: 1;
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.card-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge--tag {
  background: var(--color-surface-offset);
  color: var(--color-text-muted);
}

.card-author {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.card-channel {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.card-duration {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}

/* Category cards */
.category-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.category-card .card-icon {
  margin-bottom: 0;
  flex-shrink: 0;
}

.category-card .card-content {
  min-width: 0;
}

/* ============================================
   DETAIL VIEW (Modal-like overlay)
   ============================================ */

.detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: color-mix(in srgb, var(--color-bg) 60%, transparent);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: flex-start;
  justify-content: center;
  overflow-y: auto;
  padding: var(--space-8) var(--space-4);
}

.detail-overlay.open {
  display: flex;
}

.detail-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  max-width: 720px;
  width: 100%;
  padding: var(--space-8);
  position: relative;
  box-shadow: var(--shadow-lg);
  margin-top: var(--space-4);
  margin-bottom: var(--space-8);
}

.detail-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}

.detail-close:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}

.detail-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  padding-right: var(--space-10);
}

.detail-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.detail-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.detail-body {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.7;
}

.detail-body h2 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.detail-body h3 {
  font-size: var(--text-sm);
  font-weight: 700;
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.detail-body p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

.detail-body ul, .detail-body ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-5);
}

.detail-body li {
  margin-bottom: var(--space-2);
  color: var(--color-text-muted);
}

.detail-body blockquote {
  border-left: 3px solid var(--color-primary);
  padding-left: var(--space-4);
  margin: var(--space-4) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

.detail-body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.detail-body a:hover {
  color: var(--color-primary-hover);
}

.detail-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-top: var(--space-4);
}

.detail-link:hover {
  background: var(--color-primary-hover);
}

/* ============================================
   BLOG CARD
   ============================================ */

.blog-card .card-date {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.blog-card .card-title {
  font-size: var(--text-base);
}

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

/* ============================================
   VIEW MORE BUTTON
   ============================================ */

.view-more-row {
  text-align: center;
  margin-top: var(--space-6);
}

.btn-view-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-6);
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
}

.btn-view-more:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding: var(--space-10) 0 var(--space-6);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-8);
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.footer-tagline {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 320px;
}

.footer-heading {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: var(--content-wide);
  margin-left: auto;
  margin-right: auto;
  padding-inline: var(--space-6);
}

@media (max-width: 640px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* ============================================
   PAGE SECTIONS (hash routing)
   ============================================ */

.page-section {
  display: none;
}

.page-section.active {
  display: block;
}

/* ============================================
   RESULTS COUNT
   ============================================ */

.results-count {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

/* ============================================
   EMPTY STATE
   ============================================ */

.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-4);
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-3);
  opacity: 0.4;
}

.empty-state-text {
  font-size: var(--text-sm);
}

/* ============================================
   LEGAL CONTENT
   ============================================ */

.legal-content {
  max-width: 720px;
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
}

.legal-content h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.legal-content h4 {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

.legal-content p {
  margin-bottom: var(--space-4);
}

.legal-content ul {
  margin-bottom: var(--space-4);
  padding-left: var(--space-5);
}

.legal-content li {
  margin-bottom: var(--space-2);
}

.legal-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-content a:hover {
  color: var(--color-primary-hover);
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */

.fade-in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
  .fade-in[data-animate] {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .fade-in[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 640px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    gap: var(--space-6);
  }
  .detail-panel {
    padding: var(--space-5);
    margin-top: 0;
    border-radius: var(--radius-lg);
  }
  .detail-overlay {
    padding: var(--space-4) var(--space-3);
  }
}