:root {
  --bg: #0a0a0a;
  --surface: #111111;
  --surface2: #1a1a1a;
  --border: rgba(255,255,255,0.08);
  --border-bright: rgba(255,255,255,0.18);
  --text: #f0f0f0;
  --muted: #666;
  --dim: #999;

  --stim: #00e5ff;
  --dep: #a855f7;
  --psy: #22c55e;
  --opi: #f97316;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Nippo', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ─── NAV ─── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--stim), var(--dep));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.logo-name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--text);
}

.logo-sub {
  font-size: 9px;
  color: var(--muted);
  letter-spacing: 3px;
  display: block;
  margin-top: -2px;
}

.nav-tabs {
  display: flex;
  gap: 4px;
}

.nav-tab {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.nav-tab:hover { color: var(--text); background: var(--surface); }
.nav-tab.active { color: #fff; background: var(--surface2); }
.nav-tab.active::after {
  display: none;
}

.nav-action {
  background: var(--text);
  color: #000;
  border: none;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 9px 20px;
  border-radius: 9999px;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s;
  display: inline-block;
}
.nav-action:hover { opacity: 0.85; }

/* ─── PAGES ─── */
.page { display: none; }
.page.active { display: block; }

/* ─── HOME ─── */
.hero {
  min-height: calc(100vh - 64px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 2rem;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,229,255,0.06) 0%, transparent 70%),
              radial-gradient(ellipse 60% 40% at 80% 80%, rgba(168,85,247,0.06) 0%, transparent 60%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

.hero-inner { position: relative; max-width: 860px; text-align: center; }

.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--stim);
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(52px, 8vw, 100px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -1px;
  margin-bottom: 2rem;
}

.hero h1 span {
  display: block;
  background: linear-gradient(to right, var(--stim), var(--dep));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 18px;
  color: var(--dim);
  line-height: 1.7;
}

.hero-cta {
  margin-block: 4rem;
  display: inline-flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.btn-primary {
  background: var(--text);
  color: #000;
  border: none;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary:hover { background: var(--stim); }

.btn-ghost {
  background: none;
  color: var(--dim);
  border: 1px solid var(--border-bright);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-ghost:hover { color: var(--text); border-color: var(--text); }

.classes-section {
  padding: 5rem 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

.section-heading {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 3rem;
}

.classes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.class-tile {
  background: var(--surface);
  padding: 2.5rem 2rem;
  transition: background 0.2s;
  position: relative;
  overflow: hidden;
}

.class-tile::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}

.class-tile.stim::after  { background: var(--stim); }
.class-tile.dep::after   { background: var(--dep); }
.class-tile.psy::after   { background: var(--psy); }
.class-tile.opi::after   { background: var(--opi); }

.class-tile:hover { background: var(--surface2); }

.class-icon {
  font-size: 32px;
  margin-bottom: 1.5rem;
}

.class-name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.class-tile.stim .class-name { color: var(--stim); }
.class-tile.dep .class-name  { color: var(--dep); }
.class-tile.psy .class-name  { color: var(--psy); }
.class-tile.opi .class-name  { color: var(--opi); }

.class-traits {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.5px;
  line-height: 2;
}

/* ─── CARDS PAGE ─── */
.cards-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2.5rem;
}

.cards-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.cards-header h2 {
  font-size: 32px;
  font-weight: 800;
}

.filters {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.filter-input, .filter-select {
  background: var(--surface);
  border: 1px solid var(--border-bright);
  color: var(--text);
  font-size: 12px;
  letter-spacing: 1px;
  padding: 10px 16px;
  border-radius: 10px;
  outline: none;
  transition: border-color 0.2s;
}
.filter-input:focus, .filter-select:focus { border-color: var(--stim); }
.filter-input { width: 220px; }
.filter-select option { background: #111; }

.filter-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.pill {
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 9999px;
  border: 1px solid var(--border-bright);
  background: none;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s;
}
.pill:hover { color: var(--text); border-color: var(--border-bright); }
.pill.active-all { background: var(--text); color: #000; border-color: var(--text); }
.pill.active-stim { background: var(--stim); color: #000; border-color: var(--stim); }
.pill.active-dep  { background: var(--dep); color: #fff; border-color: var(--dep); }
.pill.active-psy  { background: var(--psy); color: #000; border-color: var(--psy); }
.pill.active-opi  { background: var(--opi); color: #000; border-color: var(--opi); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.card-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.card-item:hover {
  border-color: var(--card-color, var(--border-bright));
  transform: translateY(-2px);
  background: var(--surface2);
}

.card-item::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--card-color, transparent);
  opacity: 0.6;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.2rem;
}

.card-emoji {
  font-size: 28px;
  line-height: 1;
}

.card-class-badge {
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 9999px;
  border: 1px solid currentColor;
  opacity: 0.8;
}

.card-name {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.card-hp {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 1px;
}

.card-attack-preview {
  font-size: 11px;
  color: var(--dim);
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* ─── MODAL ─── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.88);
  z-index: 500;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.modal-overlay.open { display: flex; }

.modal-box {
  background: var(--surface);
  border: 1px solid var(--border-bright);
  border-radius: 20px;
  width: 100%;
  max-width: 780px;
  overflow: hidden;
  animation: slideUp 0.25s ease;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.modal-top-bar {
  height: 4px;
  background: var(--modal-color, var(--stim));
  transition: background 0.3s;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 26px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 12px;
}

.modal-close {
  background: var(--surface2);
  border: none;
  color: var(--dim);
  width: 36px; height: 36px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: all 0.15s;
}
.modal-close:hover { background: var(--border-bright); color: var(--text); }

.modal-body {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 0;
}

.modal-card-visual {
  padding: 2rem;
  border-right: 1px solid var(--border);
  display: flex;
  align-items: stretch;
}

.card-visual-inner {
  width: 100%;
  border-radius: 14px;
  border: 2px solid var(--modal-color, var(--stim));
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--surface2);
  min-height: 260px;
}

.card-visual-emoji { font-size: 48px; }
.card-visual-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--modal-color, var(--stim));
}
.card-visual-hp {
  font-size: 32px;
  font-weight: 500;
  text-align: right;
  color: var(--dim);
}

.modal-info {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.info-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.info-label {
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.info-value {
  font-size: 14px;
  color: var(--dim);
  background: var(--surface2);
  border-radius: 10px;
  padding: 12px 16px;
  line-height: 1.6;
}

.flavor {
  font-style: italic;
  font-size: 13px;
  color: var(--muted);
  border-left: 2px solid var(--modal-color, var(--stim));
  padding-left: 14px;
  line-height: 1.7;
}

/* ─── RULES PAGE ─── */
.rules-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 4rem 2.5rem;
}

.rules-page h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 3rem;
}

.rules-block {
  margin-bottom: 3rem;
}

.rules-block h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--text);
}

.rules-block p, .rules-block li {
  color: var(--dim);
  line-height: 1.8;
  margin-bottom: 0.5rem;
}

.rules-block ul { padding-left: 1.2rem; }

.counter-chain {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  margin: 1.5rem 0;
}

.counter-node {
  flex: 1;
  padding: 1.5rem 1rem;
  text-align: center;
  border-right: 1px solid var(--border);
}
.counter-node:last-child { border-right: none; }

.counter-node-emoji { font-size: 24px; margin-bottom: 6px; }
.counter-node-name {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.cn-stim { color: var(--stim); }
.cn-dep  { color: var(--dep); }
.cn-psy  { color: var(--psy); }
.cn-opi  { color: var(--opi); }

.counter-arrow {
  padding: 0 6px;
  color: var(--muted);
  font-size: 16px;
  background: var(--surface2);
  display: flex;
  align-items: center;
  align-self: stretch;
  font-size: 20px;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
}

.stat-label {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 28px;
  font-weight: 800;
}

/* ─── ABOUT PAGE ─── */
.about-page {
  max-width: 680px;
  margin: 0 auto;
  padding: 5rem 2.5rem;
}

.about-page h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 2rem;
}

.about-page p {
  color: var(--dim);
  line-height: 1.9;
  margin-bottom: 1.5rem;
  font-size: 16px;
}

.disclaimer-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--muted);
  border-radius: 0 10px 10px 0;
  padding: 1.25rem 1.5rem;
  margin-top: 2rem;
}

.disclaimer-box p {
  font-size: 12px;
  letter-spacing: 0.5px;
  color: var(--muted);
  margin: 0;
}

/* ─── FOOTER ─── */
footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem;
  text-align: center;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--muted);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1080px) {
  nav { padding: 0 1.25rem; }
  .logo-name { font-size: 15px; }
  .nav-tabs { display: none; }
  .mobile-nav { display: flex !important; }

  .hero h1 { font-size: 44px; }
  .classes-grid, .card-grid { grid-template-columns: repeat(2, 1fr); }
  
  .modal-body { grid-template-columns: 1fr; }
  .modal-card-visual { border-right: none; border-bottom: 1px solid var(--border); }
  .stat-grid { grid-template-columns: 1fr; }
  .counter-chain { flex-direction: column; }
  .counter-node { border-right: none; border-bottom: 1px solid var(--border); }
  .counter-arrow { display: none; }
}

.no-results {
  text-align: center;
  padding: 5rem;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 1px;
  grid-column: 1/-1;
}