/* ============================================
   ARC RAIDERS LOOT GUIDE — Design System
   Liquid Glass + Post-Apocalyptic Sci-Fi
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg-deep: #060a10;
  --bg-primary: #0c1119;
  --bg-secondary: #111927;
  --bg-card: rgba(14, 22, 35, 0.65);

  --text-primary: #eae0cd;
  --text-secondary: #8b9ab5;
  --text-muted: #566380;

  --accent-cyan: #00d4ff;
  --accent-cyan-dim: rgba(0, 212, 255, 0.15);
  --accent-amber: #f5a623;
  --accent-green: #4ade80;
  --accent-purple: #a78bfa;
  --accent-teal: #2dd4bf;
  --accent-red: #f87171;

  --cat-keep: #4ade80;
  --cat-strategic: #fbbf24;
  --cat-highvalue: #a78bfa;
  --cat-recycle: #2dd4bf;

  --glass-border: rgba(255, 255, 255, 0.07);
  --glass-border-hover: rgba(255, 255, 255, 0.14);
  --glass-bg: rgba(255, 255, 255, 0.025);
  --glass-highlight: rgba(255, 255, 255, 0.05);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --font-display: 'Teko', sans-serif;
  --font-body: 'Lexend', sans-serif;
  --font-mono: 'Share Tech Mono', monospace;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text-primary);
  background: var(--bg-deep);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-deep);
}
::-webkit-scrollbar-thumb {
  background: rgba(0, 212, 255, 0.2);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 212, 255, 0.4);
}

/* --- Atmospheric Background --- */
.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 15% 50%, rgba(0, 212, 255, 0.06) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 15%, rgba(167, 139, 250, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 95%, rgba(245, 166, 35, 0.03) 0%, transparent 45%);
  animation: gradientDrift 25s ease-in-out infinite alternate;
}

@keyframes gradientDrift {
  0% { transform: scale(1) translate(0, 0); }
  50% { transform: scale(1.05) translate(-2%, 1%); }
  100% { transform: scale(1) translate(1%, -1%); }
}

.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='512' height='512' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* --- Scroll Progress --- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
  z-index: 1000;
  transition: width 0.1s linear;
  box-shadow: 0 0 10px var(--accent-cyan);
}

/* --- Container --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  padding: 100px 24px 60px;
  text-align: center;
  overflow: hidden;
  z-index: 2;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(0, 212, 255, 0.03) 0%, transparent 60%);
  pointer-events: none;
}

.hero-scan-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 10%, rgba(0, 212, 255, 0.3) 50%, transparent 90%);
  animation: scanDown 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes scanDown {
  0%, 100% { top: 0; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 16px;
  padding: 4px 14px;
  border: 1px solid var(--accent-cyan-dim);
  border-radius: 999px;
  background: rgba(0, 212, 255, 0.05);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(60px, 12vw, 120px);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 0.9;
  color: var(--text-primary);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.hero h1 span {
  display: block;
  font-size: 0.45em;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--accent-cyan);
  margin-top: 4px;
}

.hero-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 20px auto 0;
  line-height: 1.7;
}

.hero-divider {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  margin: 28px auto 0;
}

/* --- Legend --- */
.legend {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 20px 0 32px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-secondary);
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 6px currentColor;
}

/* --- Filter Bar --- */
.filter-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 14px 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(6, 10, 16, 0.75);
  border-bottom: 1px solid var(--glass-border);
  transition: box-shadow 0.3s;
}

.filter-bar.scrolled {
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

.filter-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.filter-container::-webkit-scrollbar {
  display: none;
}

.filter-btn {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  padding: 7px 18px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.3s var(--ease-out-expo);
}

.filter-btn:hover {
  border-color: var(--glass-border-hover);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.filter-btn.active {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 212, 255, 0.08);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.1);
}

/* --- Section Headers --- */
.section-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 48px 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
}

.section-header:first-child {
  margin-top: 0;
}

.section-accent {
  width: 3px;
  height: 22px;
  border-radius: 2px;
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.section-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-left: auto;
}

/* --- Item Grid --- */
.item-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  padding-bottom: 16px;
}

/* --- Glass Card --- */
.item-card {
  position: relative;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.035) 0%,
    rgba(255, 255, 255, 0.01) 100%
  );
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px 16px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: all 0.4s var(--ease-out-expo);
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
}

.item-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Liquid refraction overlay */
.item-card::before {
  content: '';
  position: absolute;
  top: -80%;
  left: -80%;
  width: 260%;
  height: 260%;
  background: radial-gradient(
    circle at 40% 40%,
    rgba(255, 255, 255, 0.03) 0%,
    transparent 50%
  );
  transition: transform 0.7s var(--ease-out-expo);
  pointer-events: none;
}

.item-card:hover::before {
  transform: translate(15%, 15%);
}

/* Category glow on hover */
.item-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-3px);
}

.item-card[data-category="always-keep"]:hover {
  border-color: rgba(74, 222, 128, 0.25);
  box-shadow: 0 8px 30px rgba(74, 222, 128, 0.07), 0 0 0 1px rgba(74, 222, 128, 0.05);
}
.item-card[data-category="strategic"]:hover {
  border-color: rgba(251, 191, 36, 0.25);
  box-shadow: 0 8px 30px rgba(251, 191, 36, 0.07), 0 0 0 1px rgba(251, 191, 36, 0.05);
}
.item-card[data-category="high-value"]:hover {
  border-color: rgba(167, 139, 250, 0.25);
  box-shadow: 0 8px 30px rgba(167, 139, 250, 0.07), 0 0 0 1px rgba(167, 139, 250, 0.05);
}
.item-card[data-category="recycle"]:hover {
  border-color: rgba(45, 212, 191, 0.25);
  box-shadow: 0 8px 30px rgba(45, 212, 191, 0.07), 0 0 0 1px rgba(45, 212, 191, 0.05);
}

/* Rarity indicator strip */
.item-card .rarity-strip {
  position: absolute;
  top: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  border-radius: 0 0 2px 2px;
  opacity: 0.5;
}

/* Item image */
.item-img-wrap {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.item-img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
  transition: transform 0.4s var(--ease-out-expo);
}

.item-card:hover .item-img {
  transform: scale(1.08);
}

.item-img-fallback {
  width: 64px;
  height: 64px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  border: 1px solid var(--glass-border);
}

/* Item text */
.item-name {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: center;
  line-height: 1.35;
  z-index: 1;
}

.item-tip {
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.4;
  z-index: 1;
}

/* Badge */
.badge {
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.02em;
  z-index: 1;
}

.badge-keep { background: rgba(74, 222, 128, 0.12); color: #4ade80; }
.badge-strategic { background: rgba(251, 191, 36, 0.12); color: #fbbf24; }
.badge-highvalue { background: rgba(167, 139, 250, 0.12); color: #a78bfa; }
.badge-recycle { background: rgba(45, 212, 191, 0.12); color: #2dd4bf; }

/* Click hint */
.item-card .click-hint {
  position: absolute;
  bottom: 8px;
  right: 10px;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 0.3s;
}

.item-card:hover .click-hint {
  opacity: 1;
}

/* --- Advice Cards (recycle tips) --- */
.advice-card {
  position: relative;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.025) 0%,
    rgba(255, 255, 255, 0.005) 100%
  );
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s var(--ease-out-expo);
}

.advice-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.advice-card:hover {
  border-color: rgba(45, 212, 191, 0.2);
}

.advice-icon {
  width: 44px;
  height: 44px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  border: 1px solid var(--glass-border);
}

.advice-content {
  flex: 1;
}

.advice-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.advice-text {
  font-size: 11.5px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- Detail Panel (Drawer) --- */
.detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease-out-expo);
}

.detail-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.detail-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(480px, 92vw);
  background: var(--bg-primary);
  border-left: 1px solid var(--glass-border);
  z-index: 501;
  transform: translateX(100%);
  transition: transform 0.5s var(--ease-out-expo);
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
}

.detail-panel.open {
  transform: translateX(0);
}

.detail-panel::-webkit-scrollbar {
  width: 4px;
}
.detail-panel::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
}

.detail-close {
  position: sticky;
  top: 0;
  display: flex;
  justify-content: flex-end;
  padding: 16px 20px;
  background: linear-gradient(180deg, var(--bg-primary) 60%, transparent);
  z-index: 10;
}

.detail-close-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.3s;
}

.detail-close-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: rotate(90deg);
}

.detail-header {
  padding: 0 28px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.detail-img-wrap {
  width: 96px;
  height: 96px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--glass-border);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.detail-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.detail-img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
  position: relative;
  z-index: 1;
}

.detail-img-fallback {
  font-size: 42px;
}

.detail-title-group {
  flex: 1;
}

.detail-name {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.1;
  color: var(--text-primary);
}

.detail-name-en {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.detail-meta {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.detail-meta .badge {
  font-size: 10px;
}

.detail-rarity {
  font-size: 10px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
}

.detail-rarity.common { color: #9ca3af; border-color: rgba(156,163,175,0.3); }
.detail-rarity.uncommon { color: #4ade80; border-color: rgba(74,222,128,0.3); }
.detail-rarity.rare { color: #60a5fa; border-color: rgba(96,165,250,0.3); }
.detail-rarity.epic { color: #c084fc; border-color: rgba(192,132,252,0.3); }

/* Detail sections */
.detail-body {
  padding: 0 28px 40px;
}

.detail-section {
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(12px);
  transition: all 0.4s var(--ease-out-expo);
}

.detail-panel.open .detail-section {
  opacity: 1;
  transform: translateY(0);
}

.detail-panel.open .detail-section:nth-child(1) { transition-delay: 0.1s; }
.detail-panel.open .detail-section:nth-child(2) { transition-delay: 0.17s; }
.detail-panel.open .detail-section:nth-child(3) { transition-delay: 0.24s; }
.detail-panel.open .detail-section:nth-child(4) { transition-delay: 0.31s; }
.detail-panel.open .detail-section:nth-child(5) { transition-delay: 0.38s; }
.detail-panel.open .detail-section:nth-child(6) { transition-delay: 0.45s; }

.detail-section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.detail-section-label::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
}

.detail-description {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Source list */
.source-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.source-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  color: var(--text-primary);
  padding: 8px 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

.source-icon {
  font-size: 15px;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}

.source-detail {
  font-size: 11px;
  color: var(--text-muted);
  margin-left: auto;
  white-space: nowrap;
}

/* Recipe/use list */
.use-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.use-item {
  font-size: 12.5px;
  color: var(--text-secondary);
  padding-left: 14px;
  position: relative;
  line-height: 1.5;
}

.use-item::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-weight: 600;
}

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
}

.stat-box {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

/* Tips list */
.tip-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tip-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.tip-icon {
  color: var(--accent-amber);
  font-size: 13px;
  flex-shrink: 0;
  margin-top: 1px;
}

/* --- Golden Rules --- */
.rules-section {
  margin: 60px 0 40px;
}

.rules-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.rules-header-icon {
  font-size: 24px;
}

.rules-header-text {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.rules-container {
  background: linear-gradient(145deg, rgba(255,255,255,0.02) 0%, rgba(255,255,255,0.005) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.rule-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 24px;
  border-bottom: 1px solid var(--glass-border);
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.4s var(--ease-out-expo);
}

.rule-item.visible {
  opacity: 1;
  transform: translateX(0);
}

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

.rule-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  min-width: 20px;
  padding-top: 1px;
}

.rule-text {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.6;
}

.rule-text strong {
  font-weight: 600;
  color: var(--text-primary);
}

.tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  vertical-align: middle;
  margin-right: 4px;
}

.tag-warn { background: rgba(248, 113, 113, 0.15); color: #f87171; }
.tag-ok { background: rgba(74, 222, 128, 0.15); color: #4ade80; }
.tag-info { background: rgba(0, 212, 255, 0.15); color: #00d4ff; }

/* --- Footer --- */
.footer {
  padding: 48px 24px 32px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.footer-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
  margin-bottom: 24px;
}

.footer-text {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.7;
}

.footer-text a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: opacity 0.2s;
}

.footer-text a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content > * {
  animation: fadeInUp 0.8s var(--ease-out-expo) backwards;
}
.hero-tag { animation-delay: 0s; }
.hero h1 { animation-delay: 0.1s; }
.hero-subtitle { animation-delay: 0.2s; }
.hero-divider { animation-delay: 0.3s; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero {
    padding: 72px 20px 40px;
  }

  .hero h1 {
    font-size: clamp(48px, 14vw, 80px);
  }

  .item-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
  }

  .item-card {
    padding: 16px 12px 14px;
  }

  .item-img-wrap {
    width: 60px;
    height: 60px;
  }

  .item-img, .item-img-fallback {
    width: 52px;
    height: 52px;
  }

  .item-name {
    font-size: 12px;
  }

  .item-tip {
    font-size: 10px;
  }

  .detail-panel {
    width: 100vw;
  }

  .detail-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 20px 20px;
  }

  .detail-body {
    padding: 0 20px 32px;
  }

  .section-header {
    margin-top: 36px;
  }

  .section-title {
    font-size: 20px;
  }

  .legend {
    gap: 12px;
    justify-content: flex-start;
    padding: 16px 0 24px;
  }

  .filter-container {
    padding: 0 16px;
  }

  .rule-item {
    padding: 14px 16px;
  }

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

@media (max-width: 400px) {
  .item-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
}

/* --- Section Nav --- */
.section-nav {
  position: sticky;
  top: 0;
  z-index: 101;
  padding: 12px 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(6, 10, 16, 0.8);
  border-bottom: 1px solid var(--glass-border);
  transition: box-shadow 0.3s;
}

.section-nav.scrolled {
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-container::-webkit-scrollbar { display: none; }

.nav-btn {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.3s var(--ease-out-expo);
}

.nav-btn:hover {
  color: var(--text-secondary);
}

.nav-btn.active {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan-dim);
  background: rgba(0, 212, 255, 0.06);
}

/* Filter bar position adjusted */
.filter-bar {
  position: sticky;
  top: 52px;
  z-index: 100;
}

/* --- Section Intro --- */
.section-intro {
  margin-bottom: 24px;
}

.intro-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 12px;
}

.rvi-legend {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* --- RVI Badge --- */
.rvi {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: 4px;
}

.rvi-pos {
  background: rgba(74, 222, 128, 0.15);
  color: #4ade80;
}

.rvi-neg {
  background: rgba(248, 113, 113, 0.12);
  color: #f87171;
}

/* --- Workshop Section --- */
.ws-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.ws-station {
  background: linear-gradient(145deg, rgba(255,255,255,0.025), rgba(255,255,255,0.005));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s var(--ease-out-expo);
}

.ws-station.visible {
  opacity: 1;
  transform: translateY(0);
}

.ws-station:hover {
  border-color: var(--glass-border-hover);
}

.ws-station-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--glass-border);
}

.ws-icon {
  font-size: 22px;
}

.ws-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-primary);
}

.ws-levels {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ws-level {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ws-level-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 2px 8px;
  border: 1px solid;
  border-radius: 4px;
  width: fit-content;
  margin-bottom: 4px;
}

.ws-items {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ws-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 10px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  gap: 8px;
}

.ws-item-name {
  font-size: 12px;
  color: var(--text-primary);
  font-weight: 400;
  flex: 1;
  min-width: 0;
}

.ws-item-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

.ws-qty {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-cyan);
  min-width: 28px;
}

.ws-sell {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  min-width: 40px;
  text-align: right;
}

/* --- Expedition Section --- */
.exp-timeline {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.exp-phase {
  background: linear-gradient(145deg, rgba(255,255,255,0.025), rgba(255,255,255,0.005));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s var(--ease-out-expo);
}

.exp-phase.visible {
  opacity: 1;
  transform: translateY(0);
}

.exp-phase::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: linear-gradient(180deg, #60a5fa, #a78bfa);
  border-radius: 2px;
}

.exp-phase-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
  padding-left: 12px;
}

.exp-phase-num {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: #60a5fa;
  letter-spacing: 0.04em;
}

.exp-phase-name {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.exp-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 6px;
  padding-left: 12px;
}

.exp-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  gap: 8px;
}

.exp-item-name {
  font-size: 12px;
  color: var(--text-primary);
  flex: 1;
}

.exp-item-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

/* --- Quest Section --- */
.quest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px;
}

.quest-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: linear-gradient(145deg, rgba(255,255,255,0.02), rgba(255,255,255,0.005));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  gap: 8px;
  opacity: 0;
  transform: translateY(12px);
  transition: all 0.3s var(--ease-out-expo);
}

.quest-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.quest-item:hover {
  border-color: var(--glass-border-hover);
}

.quest-item-name {
  font-size: 12.5px;
  color: var(--text-primary);
  font-weight: 400;
  flex: 1;
}

.quest-item-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

/* --- Utility --- */
.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Responsive additions --- */
@media (max-width: 768px) {
  .ws-grid {
    grid-template-columns: 1fr;
  }

  .exp-items {
    grid-template-columns: 1fr;
  }

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

  .nav-btn {
    font-size: 14px;
    padding: 6px 14px;
  }

  .filter-bar {
    top: 48px;
  }
}