/* ══════════════════════════════
   VARIABLES — DARK / LIGHT
══════════════════════════════ */
:root,
[data-theme="dark"] {
  --bg:      #06060b;
  --bg2:     #0b0b12;
  --card:    #0e0e17;
  --accent:  #00ff9d;
  --a-lo:    rgba(0,255,157,.07);
  --a-md:    rgba(0,255,157,.22);
  --white:   #efefef;
  --gray:    #777;
  --border:  rgba(255,255,255,.06);
  --nav-bg:  rgba(6,6,11,.92);
  --text-body: #888;
  --f-d:     'Syne', sans-serif;
  --f-ui:    'Space Grotesk', sans-serif;
  --f-mono:  'JetBrains Mono', monospace;
}

[data-theme="light"] {
  --bg:      #f4f4f0;
  --bg2:     #eaeae4;
  --card:    #ffffff;
  --accent:  #00b86a;
  --a-lo:    rgba(0,184,106,.08);
  --a-md:    rgba(0,184,106,.22);
  --white:   #0a0a0f;
  --gray:    #666;
  --border:  rgba(0,0,0,.08);
  --nav-bg:  rgba(244,244,240,.94);
  --text-body: #555;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
::-webkit-scrollbar       { width:3px; }
::-webkit-scrollbar-track { background:var(--bg); }
::-webkit-scrollbar-thumb { background:var(--accent); border-radius:2px; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--f-ui);
  overflow-x: hidden;
  cursor: none;
  transition: background .35s, color .35s;
}

body::before {
  content:'';
  position:fixed; inset:0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events:none; z-index:0; opacity:.5;
}

/* ── Cursor ── */
.cur-dot {
  position:fixed; width:7px; height:7px;
  background:var(--accent); border-radius:50%;
  pointer-events:none; z-index:9999;
  transform:translate(-50%,-50%);
  transition: transform .1s;
}
.cur-ring {
  position:fixed; width:30px; height:30px;
  border:1px solid var(--a-md); border-radius:50%;
  pointer-events:none; z-index:9998;
  transform:translate(-50%,-50%);
}
.cur-dot.expand  { transform:translate(-50%,-50%) scale(2.5); }
.cur-ring.expand { border-color:var(--accent); }

/* ── Nav ── */
#nav {
  position:fixed; top:0; left:0; right:0; z-index:200;
  padding:24px 64px;
  display:flex; align-items:center; justify-content:space-between;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  border-bottom:1px solid var(--border);
  transition: background .35s;
}
.nav-logo {
  font-family:var(--f-d); font-size:17px; font-weight:800;
  letter-spacing:.04em; color:var(--white); text-decoration:none;
}
.nav-logo b { color:var(--accent); }
.nav-back {
  font-family:var(--f-mono); font-size:12px;
  color:var(--gray); text-decoration:none; letter-spacing:.12em;
  transition:color .25s;
}
.nav-back:hover { color:var(--white); }
.nav-controls { display:flex; gap:8px; align-items:center; }
.nav-icon-btn {
  width:36px; height:36px;
  display:flex; align-items:center; justify-content:center;
  background:transparent; border:1px solid var(--border);
  color:var(--gray); cursor:none; font-size:16px;
  transition:border-color .25s, color .25s;
}
.nav-icon-btn:hover { border-color:var(--accent); color:var(--accent); }
.nav-tg {
  padding:9px 22px; border:1px solid var(--accent);
  color:var(--accent); font-size:12px; font-weight:600;
  letter-spacing:.14em; text-transform:uppercase;
  text-decoration:none; transition:all .25s;
}
.nav-tg:hover { background:var(--accent); color:var(--bg); }

/* ── Page Hero ── */
.page-hero {
  padding: 160px 64px 100px;
  position:relative; overflow:hidden;
  border-bottom:1px solid var(--border);
}
.page-hero::before {
  content:'';
  position:absolute; top:0; left:0; right:0; bottom:0;
  background: radial-gradient(ellipse 60% 80% at 15% 50%, rgba(0,255,157,.06) 0%, transparent 70%);
  pointer-events:none; z-index:0;
}
[data-theme="light"] .page-hero::before {
  background: radial-gradient(ellipse 60% 80% at 15% 50%, rgba(0,184,106,.05) 0%, transparent 70%);
}
#hero-canvas {
  position:absolute; inset:0;
  width:100%; height:100%;
  display:block; z-index:0;
}
.ph-tag, .ph-title, .ph-sub {
  position: relative; z-index: 1;
}
.ph-tag {
  font-family:var(--f-mono); font-size:11px;
  color:var(--accent); letter-spacing:.22em; text-transform:uppercase;
  display:flex; align-items:center; gap:14px; margin-bottom:28px;
}
.ph-tag::before { content:''; width:36px; height:1px; background:var(--accent); }
.ph-title {
  font-family:var(--f-d);
  font-size: clamp(56px, 9vw, 120px);
  font-weight:800; line-height:1.05; letter-spacing:-.02em;
  max-width:900px; padding-bottom:6px; overflow:visible;
}
.ph-title span { color:var(--accent); }
.ph-sub {
  font-size:clamp(15px,1.5vw,18px);
  color:var(--gray); line-height:1.7;
  max-width:560px; margin-top:32px;
}

/* ── Content ── */
.content-wrap {
  padding:100px 64px;
  max-width:1280px; margin:0 auto;
  position:relative; z-index:1;
}

.intro-block {
  max-width:720px; margin-bottom:80px;
  padding-bottom:64px;
  border-bottom:1px solid var(--border);
}
.intro-block p {
  font-size:16px; line-height:1.85; color:var(--text-body);
  margin-bottom:20px;
}
.intro-block p strong { color:var(--white); }

/* Warning block */
.warn-block {
  display:flex; align-items:flex-start; gap:20px;
  background: rgba(255,160,0,.06);
  border:1px solid rgba(255,160,0,.2);
  padding:24px 28px; margin-bottom:64px;
}
.wb-icon { font-size:20px; line-height:1; color: #ffa000; flex-shrink:0; margin-top:2px; }
.wb-text { font-size:14px; color:var(--text-body); line-height:1.7; }

/* ── Topic Grid ── */
.topic-grid {
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:2px;
  background:var(--border);
  border:1px solid var(--border);
  overflow: visible;
}

.topic-card {
  background:var(--card);
  padding:44px 40px 48px;
  position:relative;
  transition:background .35s;
}
.topic-card:hover { background:var(--bg); }
.topic-card::after {
  content:'';
  position:absolute; bottom:0; left:0;
  height:2px; width:0; background:var(--accent);
  transition:width .5s cubic-bezier(.25,1,.5,1);
}
.topic-card:hover::after { width:100%; }

.tc-num {
  font-family:var(--f-mono); font-size:11px;
  color:var(--accent); letter-spacing:.15em;
  opacity:.5; margin-bottom:20px;
}
.tc-title {
  font-family: var(--f-ui);
  font-size: 21px; font-weight: 700;
  line-height: 1.35; letter-spacing: -.01em;
  margin-bottom: 14px;
}
.tc-desc {
  font-size:13px; color:var(--text-body);
  line-height:1.7; margin-bottom:24px;
}
.tc-list {
  list-style:none; display:flex; flex-direction:column; gap:8px;
}
.tc-list li {
  font-family:var(--f-mono); font-size:12px;
  color:var(--gray); padding-left:16px; position:relative;
  line-height:1.5;
}
.tc-list li::before {
  content:'▸'; position:absolute; left:0;
  color:var(--accent); font-size:9px; top:3px;
}

/* ── Page CTA ── */
.page-cta {
  background:var(--bg2);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:100px 64px;
  text-align:center; position:relative; overflow:hidden;
}
.page-cta::before {
  content:'';
  position:absolute; top:50%; left:50%;
  transform:translate(-50%,-50%);
  width:600px; height:400px;
  background:radial-gradient(ellipse, rgba(0,255,157,.05) 0%, transparent 70%);
  pointer-events:none;
}
.pcta-inner { position:relative; z-index:1; }
.pcta-tag {
  font-family:var(--f-mono); font-size:11px;
  color:var(--accent); letter-spacing:.24em; text-transform:uppercase;
  display:block; margin-bottom:20px;
}
.pcta-title {
  font-family:var(--f-d);
  font-size:clamp(36px,5vw,64px);
  font-weight:800; line-height:1.18; letter-spacing:-.02em;
  margin-bottom:20px; padding-bottom:4px; overflow:visible;
}
.pcta-sub {
  font-size:15px; color:var(--gray);
  max-width:440px; margin:0 auto 44px; line-height:1.7;
}
.pcta-btn {
  display:inline-flex; align-items:center; gap:12px;
  padding:18px 44px; background:var(--accent);
  color:var(--bg); font-size:13px; font-weight:700;
  letter-spacing:.1em; text-transform:uppercase;
  text-decoration:none;
  transition:transform .3s, box-shadow .3s;
}
.pcta-btn:hover {
  transform:translateY(-3px);
  box-shadow:0 20px 60px rgba(0,255,157,.3);
}

/* ── Footer ── */
.disclaimer-bar {
  border-top:1px solid var(--border);
  padding:32px 64px;
  position:relative; z-index:1;
}
.disclaimer-bar p {
  max-width:880px; margin:0 auto;
  font-family:var(--f-mono); font-size:11px; line-height:1.8;
  color:var(--gray); opacity:.75;
  letter-spacing:.02em; text-align:center;
}
.disclaimer-bar b { color:var(--text-body, #c8cdd4); font-weight:600; }
.page-footer {
  border-top:1px solid var(--border);
  padding:36px 64px;
  display:flex; align-items:center; justify-content:space-between;
  position:relative; z-index:1;
}
.f-logo {
  font-family:var(--f-d); font-size:15px; font-weight:800;
  color:var(--white); text-decoration:none;
}
.f-logo b { color:var(--accent); }
.f-nav { display:flex; gap:24px; flex-wrap:wrap; }
.f-nav a {
  font-family:var(--f-mono); font-size:11px;
  color:var(--gray); text-decoration:none; letter-spacing:.1em;
  transition:color .25s;
}
.f-nav a:hover { color:var(--accent); }
.f-tg {
  font-family:var(--f-mono); font-size:11px;
  color:var(--accent); text-decoration:none; letter-spacing:.1em;
}

/* ── Back to Top ── */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 500;
  width: 44px; height: 44px;
  background: var(--accent); color: var(--bg);
  border: none; cursor: none;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: translateY(16px);
  transition: opacity .3s, transform .3s, box-shadow .3s;
  pointer-events: none;
}
.back-to-top.visible { opacity: 1; transform: none; pointer-events: all; }
.back-to-top:hover { box-shadow: 0 8px 28px var(--a-md); }

/* ── Reading Progress ── */
.reading-progress {
  position: fixed; top: 0; left: 0; z-index: 9997;
  height: 2px; width: 0%;
  background: var(--accent);
  pointer-events: none;
  transition: width .08s linear;
}

/* ── PWA Install Banner ── */
.pwa-banner {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(120px);
  z-index: 600;
  background: var(--card); border: 1px solid var(--border);
  display: flex; align-items: center; gap: 16px;
  padding: 16px 20px;
  max-width: 440px; width: calc(100% - 48px);
  box-shadow: 0 16px 48px rgba(0,0,0,.4);
  transition: transform .4s cubic-bezier(.25,1,.5,1);
}
.pwa-banner.show { transform: translateX(-50%) translateY(0); }
.pwa-banner-icon { color: var(--accent); flex-shrink: 0; }
.pwa-text { flex: 1; }
.pwa-title { font-size: 13px; font-weight: 600; color: var(--white); margin-bottom: 2px; }
.pwa-sub   { font-family: var(--f-mono); font-size: 11px; color: var(--gray); letter-spacing:.06em; }
.pwa-install {
  padding: 8px 16px; background: var(--accent); color: var(--bg);
  border: none; cursor: none; font-family: var(--f-mono);
  font-size: 11px; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; white-space: nowrap;
  transition: opacity .2s;
}
.pwa-install:hover { opacity: .85; }
.pwa-dismiss {
  background: transparent; border: none; cursor: none;
  color: var(--gray); font-size: 20px; line-height: 1;
  padding: 0 4px; flex-shrink: 0;
  transition: color .2s;
}
.pwa-dismiss:hover { color: var(--white); }

/* ── Share toast ── */
.share-toast {
  position: fixed; bottom: 90px; left: 50%; transform: translateX(-50%) translateY(10px);
  background: var(--card); border: 1px solid var(--border);
  padding: 10px 20px; z-index: 700;
  font-family: var(--f-mono); font-size: 12px; color: var(--accent);
  letter-spacing: .1em; opacity: 0;
  transition: opacity .25s, transform .25s;
  pointer-events: none;
}
.share-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── Premium Section ── */
.premium-wrap {
  padding: 0 64px 100px;
  max-width: 1280px; margin: 0 auto;
  position: relative; z-index: 1;
}
.premium-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 40px; padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.premium-header-left {}
.premium-tag {
  font-family: var(--f-mono); font-size: 10px;
  letter-spacing: .2em; text-transform: uppercase;
  padding: 4px 12px; margin-bottom: 12px;
  display: inline-block;
  background: rgba(255,200,0,.08);
  border: 1px solid rgba(255,200,0,.25);
  color: #ffc800;
}
.premium-h {
  font-family: var(--f-d); font-size: clamp(28px,3.5vw,44px);
  font-weight: 800; line-height: 1.15; letter-spacing: -.02em;
}
.premium-sub {
  font-size: 14px; color: var(--gray); line-height: 1.7;
  max-width: 480px; margin-top: 10px;
}
.premium-price-badge {
  text-align: right;
}
.ppb-label {
  font-family: var(--f-mono); font-size: 10px;
  color: var(--gray); letter-spacing: .14em;
  text-transform: uppercase; display: block; margin-bottom: 6px;
}
.ppb-val {
  font-family: var(--f-d); font-size: 32px; font-weight: 800;
  color: #ffc800;
}
.ppb-period {
  font-family: var(--f-mono); font-size: 11px;
  color: var(--gray); letter-spacing: .1em;
}

/* ══════════════════════════════
   SMC EDUCATIONAL CONTENT
══════════════════════════════ */
.smc-section { border-top: 1px solid var(--border); }
.smc-block { margin-bottom: 80px; padding-top: 72px; border-top: 1px solid var(--border); }
.smc-block:first-child { border-top: none; padding-top: 0; }

.smc-block-header { margin-bottom: 48px; }
.smc-tag {
  font-family: var(--f-mono); font-size: 11px;
  color: var(--accent); letter-spacing: .22em; text-transform: uppercase;
  display: flex; align-items: center; gap: 12px; margin-bottom: 16px;
}
.smc-tag::before { content: ''; width: 24px; height: 1px; background: var(--accent); }
.smc-title {
  font-family: var(--f-d); font-size: clamp(26px,3vw,40px);
  font-weight: 800; letter-spacing: -.02em; margin-bottom: 14px;
}
.smc-intro {
  font-size: 15px; color: var(--text-body); line-height: 1.75;
  max-width: 720px;
}

/* Card grid */
.smc-cards {
  display: grid; grid-template-columns: repeat(2,1fr);
  gap: 2px; background: var(--border);
  border: 1px solid var(--border);
}
.smc-card {
  background: var(--card); padding: 36px 32px;
  display: flex; flex-direction: column; gap: 16px;
  transition: background .3s; position: relative;
}
.smc-card::after {
  content: ''; position: absolute; top: 0; left: 0;
  width: 0; height: 2px; background: var(--accent);
  transition: width .5s cubic-bezier(.25,1,.5,1);
}
.smc-card:hover { background: var(--bg); }
.smc-card:hover::after { width: 100%; }
.smc-card--wide { grid-column: 1 / -1; }

.smc-card-num {
  font-family: var(--f-mono); font-size: 10px;
  color: var(--accent); letter-spacing: .14em; opacity: .7;
}
.smc-card-title {
  font-family: var(--f-ui); font-size: 18px; font-weight: 700;
  color: var(--white); line-height: 1.25;
}
.smc-card-desc {
  font-size: 13px; color: var(--text-body); line-height: 1.75;
}

/* Note box */
.smc-note {
  font-size: 12px; color: var(--gray); line-height: 1.7;
  border-left: 2px solid var(--accent);
  padding: 10px 16px; background: var(--accent-lo);
  margin-top: 4px;
}

/* Chart figures from learning materials */
.smc-figure { margin: 8px 0 0; }
.smc-figure img {
  width: 100%; display: block;
  border: 1px solid var(--border);
  border-radius: 2px;
}
.smc-figcaption {
  font-family: var(--f-mono); font-size: 11px;
  color: var(--gray); letter-spacing: .04em;
  padding: 10px 2px 0; line-height: 1.6;
}

/* Compact data table (risk management) */
.smc-table { width: 100%; border-collapse: collapse; margin-top: 4px; }
.smc-table th {
  font-family: var(--f-mono); font-size: 10px; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--gray); text-align: left;
  padding: 8px 12px; border-bottom: 1px solid var(--border);
}
.smc-table td {
  font-size: 13px; color: var(--text-body, #c8cdd4);
  padding: 8px 12px; border-bottom: 1px solid var(--border);
}
.smc-table td.accent { color: var(--accent); font-family: var(--f-mono); }
.smc-table td.danger { color: #ff5470; font-family: var(--f-mono); }
.smc-table tr:last-child td { border-bottom: none; }

/* Key levels */
.smc-levels { display: flex; flex-direction: column; gap: 8px; }
.smc-level-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 10px 14px; background: var(--bg2);
  border: 1px solid var(--border);
}
.smc-level-item.accent { border-color: var(--accent); background: var(--accent-lo); }
.smc-level-name {
  font-family: var(--f-mono); font-size: 11px; font-weight: 700;
  color: var(--accent); letter-spacing: .08em; min-width: 90px;
}
.smc-level-desc { font-size: 12px; color: var(--gray); line-height: 1.5; }

/* Two-col inside card */
.smc-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.smc-def-item { display: flex; flex-direction: column; gap: 8px; }
.smc-def-term {
  font-family: var(--f-mono); font-size: 11px; font-weight: 700;
  color: var(--white); letter-spacing: .1em; text-transform: uppercase;
  padding: 4px 10px; background: var(--bg2); border: 1px solid var(--border);
  display: inline-block; width: fit-content;
}
.smc-def-term.bisi { color: var(--accent); border-color: var(--accent); background: var(--accent-lo); }
.smc-def-term.sibi { color: #ff6b6b; border-color: rgba(255,107,107,.3); background: rgba(255,107,107,.06); }
.smc-def-text { font-size: 12px; color: var(--text-body); line-height: 1.65; }

/* Rules list */
.smc-rule-title {
  font-family: var(--f-mono); font-size: 10px; font-weight: 700;
  color: var(--accent); letter-spacing: .16em; text-transform: uppercase;
  margin-bottom: 10px;
}
.smc-rule-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.smc-rule-list li {
  font-size: 13px; color: var(--text-body); line-height: 1.5;
  padding-left: 20px; position: relative;
}
.smc-rule-list li::before {
  content: '→'; position: absolute; left: 0;
  color: var(--accent); font-family: var(--f-mono); font-size: 11px;
}
.smc-rule-list--bad li::before { content: '×'; color: #ff6b6b; }

/* Errors */
.smc-errors { display: flex; flex-direction: column; gap: 16px; }
.smc-error-item {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 14px 16px; border: 1px solid var(--border); background: var(--bg2);
}
.smc-error-num {
  font-family: var(--f-mono); font-size: 10px; font-weight: 700;
  color: #ff6b6b; letter-spacing: .08em; white-space: nowrap;
  flex-shrink: 0;
}
.smc-error-item p { font-size: 12px; color: var(--gray); line-height: 1.6; margin-top: 4px; }
.smc-error-item strong { font-size: 13px; color: var(--white); }

/* Steps */
.smc-steps {
  list-style: none; display: flex; flex-direction: column; gap: 10px;
  counter-reset: step;
}
.smc-steps li {
  font-size: 13px; color: var(--text-body); line-height: 1.55;
  padding-left: 28px; position: relative; counter-increment: step;
}
.smc-steps li::before {
  content: counter(step);
  position: absolute; left: 0;
  font-family: var(--f-mono); font-size: 10px; font-weight: 700;
  color: var(--accent); background: var(--accent-lo);
  border: 1px solid var(--accent); border-radius: 50%;
  width: 18px; height: 18px; display: flex; align-items: center;
  justify-content: center; top: 1px;
}

/* Checklist */
.smc-checklist {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}
.smc-check-item {
  font-size: 12px; color: var(--text-body);
  padding: 8px 12px; border: 1px solid var(--border);
  display: flex; align-items: center; gap: 8px;
  line-height: 1.4;
}
.smc-check-item::before { content: ''; flex-shrink: 0; width: 8px; height: 8px; border-radius: 50%; }
.smc-check-item.yes { background: var(--accent-lo); border-color: var(--accent); color: var(--white); }
.smc-check-item.yes::before { background: var(--accent); }
.smc-check-item.no { opacity: .55; }
.smc-check-item.no::before { background: #ff6b6b; }

/* Criteria */
.smc-criteria { display: flex; flex-direction: column; gap: 16px; }
.smc-criterion {
  display: flex; gap: 14px; align-items: flex-start;
}
.smc-criterion-num {
  width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0;
  background: var(--accent-lo); border: 1px solid var(--accent);
  font-family: var(--f-mono); font-size: 12px; font-weight: 700;
  color: var(--accent); display: flex; align-items: center; justify-content: center;
}
.smc-criterion strong { font-size: 13px; color: var(--white); display: block; margin-bottom: 4px; }
.smc-criterion p { font-size: 12px; color: var(--text-body); line-height: 1.6; }

/* Pyramid table */
.pyramid-table {
  border: 1px solid var(--border);
  overflow: hidden; margin-bottom: 2px;
}
.pt-header {
  display: grid; grid-template-columns: 140px 1fr 1fr;
  background: var(--bg); border-bottom: 1px solid var(--border);
}
.pt-header .pt-col {
  font-family: var(--f-mono); font-size: 10px; font-weight: 700;
  color: var(--accent); letter-spacing: .14em; text-transform: uppercase;
  padding: 12px 16px;
}
.pt-row {
  display: grid; grid-template-columns: 140px 1fr 1fr;
  border-bottom: 1px solid var(--border); transition: background .2s;
}
.pt-row:last-child { border-bottom: none; }
.pt-row:hover { background: var(--bg); }
.pt-row--top .pt-tf { color: var(--white); font-size: 13px; font-weight: 700; }
.pt-row--bottom .pt-tf { color: var(--accent); }
.pt-cell {
  padding: 14px 16px; font-size: 12px;
  color: var(--text-body); line-height: 1.5;
  border-right: 1px solid var(--border);
}
.pt-cell:last-child { border-right: none; }
.pt-tf {
  font-family: var(--f-mono); font-size: 11px; font-weight: 600;
  color: var(--gray); letter-spacing: .06em;
}

/* Responsive */
@media (max-width: 768px) {
  .smc-cards { grid-template-columns: 1fr; }
  .smc-two-col { grid-template-columns: 1fr; }
  .smc-checklist { grid-template-columns: 1fr; }
  .smc-card { padding: 24px 20px; }
  .pt-header, .pt-row { grid-template-columns: 100px 1fr; }
  .pt-header .pt-col:last-child,
  .pt-cell:last-child:not(:nth-child(2)) { display: none; }
}

/* ── Premium grid wrapper (position:relative for single overlay) ── */
.premium-grid-wrap {
  position: relative;
}

.premium-grid {
  display: grid; grid-template-columns: repeat(2,1fr);
  gap: 2px; background: var(--border);
  border: 1px solid var(--border);
}

/* Individual premium block — no per-block overlays */
.premium-block {
  background: var(--card); position: relative; overflow: hidden;
}

.pb-meta {
  padding: 28px 32px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.pb-num {
  font-family: var(--f-mono); font-size: 10px;
  color: var(--accent); letter-spacing: .16em; opacity: .6;
}
.pb-lock-badge {
  font-family: var(--f-mono); font-size: 10px;
  color: #ffc800; letter-spacing: .12em;
  padding: 3px 10px; text-transform: uppercase;
  border: 1px solid rgba(255,200,0,.25);
  background: rgba(255,200,0,.06);
}
.pb-title {
  font-family: var(--f-ui); font-size: 17px; font-weight: 700;
  padding: 20px 32px 0;
}
.pb-desc {
  font-size: 13px; color: var(--gray);
  padding: 8px 32px 0; line-height: 1.65;
}

/* Chart area */
.pb-chart-area {
  position: relative; padding: 24px 32px 0; height: 260px;
  overflow: hidden;
}
.pb-chart-area canvas,
.pb-chart-area svg,
.pb-chart-area .tv-wrap { width: 100%; height: 100%; display: block; }

/* ── SINGLE big overlay over the whole grid ── */
.pb-grid-overlay {
  position: absolute; inset: 0; z-index: 10;
  background: rgba(6,6,11,.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 20px; padding: 40px 24px;
  transition: background .3s;
}
[data-theme="light"] .pb-grid-overlay {
  background: rgba(240,240,237,.80);
}
.pb-grid-overlay:hover { background: rgba(6,6,11,.78); }
[data-theme="light"] .pb-grid-overlay:hover { background: rgba(240,240,237,.86); }

.pb-grid-lock {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  color: #ffc800;
  border: 1px solid rgba(255,200,0,.28);
  background: rgba(255,200,0,.07);
}
.pb-grid-title {
  font-family: var(--f-ui); font-size: 18px; font-weight: 800;
  text-align: center; letter-spacing: -.01em;
}
.pb-grid-sub {
  font-size: 13px; color: var(--gray);
  text-align: center; line-height: 1.65; max-width: 280px;
}

/* Small CTA button */
.pb-cta-sm {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px;
  background: transparent;
  color: #ffc800;
  border: 1px solid rgba(255,200,0,.50);
  font-family: var(--f-mono); font-size: 11px; font-weight: 600;
  letter-spacing: .10em; text-transform: uppercase;
  text-decoration: none;
  transition: background .22s, border-color .22s, color .22s, transform .22s;
}
.pb-cta-sm:hover {
  background: #ffc800; color: #06060b;
  border-color: #ffc800; transform: translateY(-1px);
}
[data-theme="light"] .pb-cta-sm { color: #a07800; border-color: rgba(160,120,0,.45); }
[data-theme="light"] .pb-cta-sm:hover { background: #ffc800; color: #06060b; border-color: #ffc800; }

/* keep old .pb-cta for any other usages */
.pb-cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 28px; background: #ffc800;
  color: #06060b; font-size: 12px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  text-decoration: none;
  transition: transform .25s, box-shadow .25s;
}
.pb-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255,200,0,.3);
}

/* Full-width premium block */
.premium-block.full { grid-column: 1 / -1; }
.premium-block.full .pb-chart-area { height: 340px; }

@media (max-width: 960px) {
  .premium-wrap { padding: 0 24px 80px; }
  .premium-grid { grid-template-columns: 1fr; }
  .premium-block.full { grid-column: 1; }
  .premium-header { flex-direction: column; align-items: flex-start; gap: 24px; }
}

/* ── Premium Section (fundamentals / defi style) ── */
.premium-section-wrap {
  padding-top: 0; padding-bottom: 80px;
}
.premium-section-header {
  display: flex; flex-direction: column; align-items: flex-start;
  gap: 12px; margin-bottom: 32px; padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}
.premium-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--f-mono); font-size: 10px; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase;
  color: #ffc800; background: rgba(255,200,0,.08);
  border: 1px solid rgba(255,200,0,.22);
  padding: 4px 10px;
}
.premium-section-title {
  font-family: var(--f-d); font-size: clamp(24px,3vw,38px);
  font-weight: 800; letter-spacing: -.02em; line-height: 1.15;
  margin: 0;
}
.premium-section-sub {
  font-size: 14px; color: var(--gray); line-height: 1.7;
  max-width: 560px; margin: 0;
}

/* pb-wide = full-width block in 2-col grid */
.pb-wide { grid-column: 1 / -1; }

/* label bar inside premium block */
.pb-label {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 22px 12px;
  font-family: var(--f-ui); font-size: 13px; font-weight: 600;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}
.pb-tag {
  font-family: var(--f-mono); font-size: 9px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent);
  background: rgba(255,200,0,.07); border: 1px solid rgba(255,200,0,.18);
  padding: 2px 7px; white-space: nowrap; flex-shrink: 0;
}

/* canvas fills block width */
.premium-block canvas {
  display: block; width: 100%;
}

/* description inside overlay */
.pb-overlay-desc {
  font-size: 12px; color: var(--gray);
  text-align: center; line-height: 1.6; max-width: 240px;
}

@media (max-width: 700px) {
  .pb-wide { grid-column: 1; }
  .pb-label { padding: 12px 16px 10px; }
}

/* ── Scroll Reveal ── */
.rv {
  opacity:0; transform:translateY(32px);
  transition:opacity .8s cubic-bezier(.25,1,.5,1), transform .8s cubic-bezier(.25,1,.5,1);
}
.rv.visible { opacity:1; transform:none; }
.rv-d1 { transition-delay:.1s; }
.rv-d2 { transition-delay:.2s; }
.rv-d3 { transition-delay:.3s; }

/* ── Responsive: Tablet ── */
@media (max-width:960px) {
  #nav { padding:14px 24px; }
  .page-hero { padding:120px 24px 70px; }
  .content-wrap { padding:60px 24px; }
  .topic-grid { grid-template-columns:1fr; }
  .page-cta { padding:70px 24px; }
  .disclaimer-bar { padding:24px; }
  .page-footer { padding:28px 24px; flex-direction:column; gap:20px; text-align:center; }
  .f-nav { justify-content:center; flex-wrap:wrap; }
}

/* ── Responsive: Mobile ── */
@media (max-width:600px) {
  /* cursor off on touch */
  .cur-dot, .cur-ring { display:none; }
  body { cursor:auto; }
  * { cursor:auto !important; }
  a, button { cursor:pointer !important; }

  /* NAV */
  #nav { padding:12px 16px; }
  .nav-logo { font-size:13px; white-space:nowrap; }
  .nav-back { display:none; }
  .nav-icon-btn { width:32px; height:32px; }
  .nav-tg { padding:8px 10px; font-size:10px; letter-spacing:.06em; }
  .nav-controls { gap:6px; flex-shrink:0; }
  .nav-controls .nav-icon-btn:not(#theme-toggle) { display:none; }

  /* PAGE HERO */
  .page-hero { padding:100px 16px 56px; }
  .ph-title { font-size: clamp(38px, 11vw, 60px); }
  .ph-sub { font-size:14px; margin-top:20px; }
  .ph-tag { font-size:10px; margin-bottom:20px; }

  /* CONTENT */
  .content-wrap { padding:48px 16px; }
  .intro-block { margin-bottom:48px; padding-bottom:40px; }
  .intro-block p { font-size:15px; }

  /* TOPIC CARDS */
  .topic-grid { grid-template-columns:1fr; }
  .topic-card { padding:28px 20px 32px; }
  .tc-num { font-size:9px; margin-bottom:14px; }
  .tc-title { font-size:16px; }
  .tc-desc { font-size:13px; }
  .tc-list li { font-size:12px; }

  /* PAGE CTA */
  .page-cta { padding:56px 16px; }
  .pcta-title { font-size:clamp(24px, 7vw, 36px); }
  .pcta-sub { font-size:13px; }

  /* FOOTER */
  .page-footer { padding:24px 16px; }
  .f-nav { gap:10px; }
  .f-nav a { font-size:12px; }

  /* PREMIUM GRID */
  .premium-grid { grid-template-columns:1fr; }
  .pb-wide, .premium-block.full { grid-column:1; }
  .premium-block canvas { min-height:200px; }
  .pb-chart-area { height:220px; padding:16px 16px 0; }
  .pb-meta { padding:18px 20px 14px; }
  .pb-title { font-size:15px; padding:14px 20px 0; }
  .pb-desc { font-size:12px; padding:6px 20px 0; }
  .premium-header { padding:0 16px; }
  .premium-wrap { padding:0 0 60px; }
  .pb-grid-title { font-size:16px; }
  .pb-grid-sub { font-size:12px; }
  .pb-cta-sm { font-size:10px; padding:7px 14px; }

  /* GLOSSARY */
  .gloss-filters { gap:6px; }
  .gf-btn { padding:7px 12px; font-size:10px; }

  /* ROADMAP */
  .rm-phase { padding:32px 20px; }
  .rm-topics { grid-template-columns:1fr; }
}