/* Ditoman shared styles — used by index.html, learn.html, tmn.html */
:root {
  --bg: #04090c;
  --surface: #0a1820;
  --surface-2: #0e212a;
  --line: rgba(127, 245, 222, 0.14);
  --line-strong: rgba(127, 245, 222, 0.32);
  --text: #eaf6f5;
  --muted: #93b3b6;
  --mint: #7ff5de;
  --cyan: #2db7ff;
  --violet: #8b6cff;
  --spectrum: linear-gradient(100deg, #7ff5de 0%, #2db7ff 50%, #8b6cff 100%);
  --en: "Bricolage Grotesque", system-ui, sans-serif;
  --fa: "Vazirmatn", Tahoma, sans-serif;
  --fa-display: "Lalezar", "Vazirmatn", Tahoma, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--en);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
[lang="fa"] { font-family: var(--fa); direction: rtl; }
:focus-visible { outline: 2px solid var(--mint); outline-offset: 3px; border-radius: 6px; }

.wrap { width: min(1180px, 100% - 32px); margin-inline: auto; }

/* ---------- Header ---------- */
header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(4, 9, 12, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: 0.06em; }
.brand img { width: 36px; height: 36px; border-radius: 50%; }
.nav-links { display: flex; gap: 26px; font-size: 0.97rem; color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 9px 18px; border-radius: 999px; font-weight: 700; font-size: 0.92rem;
  border: 1px solid var(--line-strong); color: var(--mint);
}
.nav-cta:hover { background: rgba(127, 245, 222, 0.08); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px; border-radius: 999px; font-weight: 700; font-size: 1rem;
  transition: transform 0.2s ease, background 0.2s ease;
}
.btn-primary { background: var(--spectrum); color: #03121a; }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--text); }
.btn-ghost:hover { background: rgba(127, 245, 222, 0.07); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 72px 0 56px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto auto; width: 70vw; height: 70vw;
  background: radial-gradient(circle, rgba(45, 183, 255, 0.16), transparent 60%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; align-items: center; gap: 40px; position: relative; }
.hero h1 {
  font-size: clamp(2.6rem, 6.4vw, 5.6rem);
  line-height: 0.98; letter-spacing: -0.035em; font-weight: 800;
  max-width: 12ch;
}
.hero h1 .spectrum {
  background: var(--spectrum); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-fa {
  margin-top: 22px; font-family: var(--fa-display); font-size: clamp(1.7rem, 3.2vw, 2.5rem); font-weight: 400;
  color: var(--mint); line-height: 1.5; max-width: 24ch;
}
.hero-lede { margin-top: 22px; font-size: 1.12rem; color: var(--muted); max-width: 52ch; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }

/* The orbit: the one memorable moment */
.orbit { position: relative; width: min(420px, 100%); aspect-ratio: 1; margin-inline: auto; }
.orbit-ring {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 0deg, #7ff5de, #2db7ff, #8b6cff, transparent 70%, #7ff5de);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2px));
  animation: spin 18s linear infinite;
}
.orbit-glow {
  position: absolute; inset: 12%; border-radius: 50%;
  background: conic-gradient(from 180deg, rgba(127, 245, 222, 0.5), rgba(45, 183, 255, 0.35), rgba(139, 108, 255, 0.45), rgba(127, 245, 222, 0.5));
  filter: blur(48px); opacity: 0.55;
  animation: spin 26s linear infinite reverse;
}
.orbit-inner {
  position: absolute; inset: 16%; border-radius: 50%;
  border: 1px dashed var(--line-strong);
  display: grid; place-items: center;
}
.orbit-inner img { width: 46%; border-radius: 50%; box-shadow: 0 0 60px rgba(127, 245, 222, 0.35); }
.orbit-tag {
  position: absolute; padding: 7px 14px; border-radius: 999px; font-size: 0.85rem; font-weight: 600;
  background: rgba(10, 24, 32, 0.92); border: 1px solid var(--line-strong); white-space: nowrap;
}
.orbit-tag:nth-of-type(1) { top: 6%; left: -2%; }
.orbit-tag:nth-of-type(2) { top: 46%; right: -8%; }
.orbit-tag:nth-of-type(3) { bottom: 4%; left: 8%; }
.orbit-tag::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--mint); margin-right: 8px; vertical-align: 1px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Sections ---------- */
section { scroll-margin-top: 84px; }
.block { padding: 88px 0; }
.block + .block { border-top: 1px solid var(--line); }
.head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 40px; flex-wrap: wrap; }
.head h2 { font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.05; letter-spacing: -0.03em; font-weight: 800; }
.head h2 [lang="fa"] { display: block; font-family: var(--fa-display); font-size: 0.62em; font-weight: 400; color: var(--mint); margin-top: 12px; letter-spacing: 0; line-height: 1.4; }
.head p { color: var(--muted); max-width: 46ch; }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 28px; overflow: hidden; }
.pillar { padding: 36px 30px 34px; background: var(--surface); position: relative; }
.pillar + .pillar { border-left: 1px solid var(--line); }
.pillar-icon { width: 52px; height: 52px; margin-bottom: 26px; }
.pillar h3 { font-size: 1.45rem; line-height: 1.2; letter-spacing: -0.01em; margin-bottom: 6px; }
.pillar .fa-sub { color: var(--mint); font-size: 1.02rem; margin-bottom: 14px; display: block; }
.pillar p { color: var(--muted); }

/* Lessons */
.lessons { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 24px; }
.featured {
  border-radius: 28px; overflow: hidden; border: 1px solid var(--line);
  background: var(--surface); display: flex; flex-direction: column;
}
.featured img { width: 100%; height: auto; }
.featured-body { padding: 26px 28px 30px; }
.featured-kicker { color: var(--mint); font-weight: 600; font-size: 0.95rem; }
.featured h3 { font-size: 1.7rem; line-height: 1.15; letter-spacing: -0.02em; margin: 8px 0 10px; }
.featured p { color: var(--muted); margin-bottom: 20px; }
.lesson-list { list-style: none; border-top: 1px solid var(--line); }
.lesson-list a {
  display: grid; grid-template-columns: 88px 1fr auto; align-items: center; gap: 14px;
  padding: 18px 6px; border-bottom: 1px solid var(--line);
}
.lesson-list a:hover { background: rgba(127, 245, 222, 0.04); }
.lesson-list .tag { justify-self: start; padding: 4px 11px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; color: var(--mint); border: 1px solid var(--line-strong); }
.lesson-list .t { font-weight: 600; font-size: 1.06rem; line-height: 1.3; }
.lesson-list .t [lang="fa"] { display: block; font-size: 0.9rem; font-weight: 400; color: var(--muted); margin-top: 3px; text-align: left; direction: rtl; unicode-bidi: plaintext; }
.lesson-list .go { color: var(--mint); font-size: 1.3rem; }
.all-lessons { margin-top: 22px; }

/* TMN */
.tmn {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border-radius: 28px; overflow: hidden; border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(127, 245, 222, 0.06), rgba(139, 108, 255, 0.07));
}
.tmn-copy { padding: 44px 40px; }
.tmn-copy h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); line-height: 1.08; letter-spacing: -0.03em; margin-bottom: 16px; }
.tmn-copy p { color: var(--muted); margin-bottom: 14px; max-width: 48ch; }
.contract {
  margin: 22px 0 26px; display: flex; align-items: center; gap: 10px;
  padding: 10px 10px 10px 16px; border-radius: 14px; background: rgba(4, 9, 12, 0.7); border: 1px solid var(--line);
}
.contract code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.86rem; color: var(--text); word-break: break-all; flex: 1; }
.copy-btn {
  flex-shrink: 0; padding: 8px 14px; border-radius: 10px; border: 1px solid var(--line-strong);
  background: transparent; color: var(--mint); font: 600 0.88rem var(--en); cursor: pointer;
}
.copy-btn:hover { background: rgba(127, 245, 222, 0.08); }
.tmn-facts { padding: 44px 40px; background: rgba(4, 9, 12, 0.45); border-left: 1px solid var(--line); }
.fact { display: flex; justify-content: space-between; gap: 18px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.fact:last-of-type { border-bottom: 0; }
.fact dt { color: var(--muted); }
.fact dd { font-weight: 700; text-align: right; }
.fact dd.ok { color: var(--mint); }
.tmn-note { margin-top: 18px; font-size: 0.93rem; color: var(--muted); }
.tmn-note a { color: var(--mint); text-decoration: underline; text-underline-offset: 3px; }

/* Roadmap */
.road { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.road::before {
  content: ""; position: absolute; top: 15px; left: 15px; right: 15px; height: 2px;
  background: linear-gradient(90deg, var(--mint) 0 25%, var(--cyan) 25% 37%, var(--line) 37%);
}
.phase { padding: 0 22px 0 0; position: relative; }
.dot {
  width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center;
  background: var(--bg); border: 2px solid var(--line-strong); font-weight: 800; font-size: 0.85rem; color: var(--muted);
  position: relative; margin-bottom: 22px;
}
.phase.done .dot { background: var(--mint); border-color: var(--mint); color: #03121a; }
.phase.now .dot { border-color: var(--cyan); color: var(--cyan); box-shadow: 0 0 0 6px rgba(45, 183, 255, 0.15); }
.phase .state { font-size: 0.9rem; font-weight: 600; color: var(--muted); }
.phase.done .state { color: var(--mint); }
.phase.now .state { color: var(--cyan); }
.phase h3 { font-size: 1.3rem; margin: 4px 0 10px; letter-spacing: -0.01em; }
.phase p { color: var(--muted); font-size: 0.97rem; }

/* FAQ */
.faq { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 48px; align-items: start; }
details { border-bottom: 1px solid var(--line); }
details:first-of-type { border-top: 1px solid var(--line); }
summary {
  list-style: none; cursor: pointer; padding: 22px 0; font-size: 1.18rem; font-weight: 700;
  display: flex; justify-content: space-between; gap: 16px;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--mint); font-size: 1.5rem; line-height: 1; transition: transform 0.2s ease; }
details[open] summary::after { transform: rotate(45deg); }
details p { color: var(--muted); padding: 0 0 22px; max-width: 62ch; }
details p a { color: var(--mint); text-decoration: underline; text-underline-offset: 3px; }

/* Whitepapers */
.papers { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.paper {
  padding: 22px 20px; border-radius: 20px; border: 1px solid var(--line); background: var(--surface);
  display: flex; flex-direction: column; gap: 6px; min-height: 150px;
}
.paper:hover { border-color: var(--line-strong); }
.paper .v { font-size: 2rem; font-weight: 800; letter-spacing: -0.03em; color: var(--muted); }
.paper .name { font-weight: 600; line-height: 1.3; }
.paper .open { margin-top: auto; color: var(--mint); font-size: 0.92rem; font-weight: 600; }
.paper.current { border-color: transparent; background: linear-gradient(var(--surface-2), var(--surface-2)) padding-box, var(--spectrum) border-box; border: 1px solid transparent; }
.paper.current .v { background: var(--spectrum); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Closing */
.closing { text-align: center; padding: 110px 0 100px; position: relative; overflow: hidden; }
.closing::before {
  content: ""; position: absolute; left: 50%; top: 50%; width: 900px; height: 900px; transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(127, 245, 222, 0.12), transparent 55%); pointer-events: none;
}
.closing h2 { font-size: clamp(2.2rem, 5vw, 4rem); letter-spacing: -0.035em; line-height: 1.05; position: relative; }
.closing .fa-line { font-family: var(--fa-display); font-size: clamp(1.8rem, 3.4vw, 2.6rem); color: var(--mint); margin-top: 14px; position: relative; }
.closing p { color: var(--muted); margin: 18px auto 30px; max-width: 46ch; position: relative; }
.closing .hero-actions { justify-content: center; position: relative; }

footer { border-top: 1px solid var(--line); padding: 30px 0 40px; color: var(--muted); font-size: 0.93rem; }
.foot { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.foot nav { display: flex; gap: 20px; }
.foot a:hover { color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .hero-grid, .lessons, .tmn, .faq { grid-template-columns: 1fr; }
  .orbit { width: min(300px, 78%); order: -1; }
  .pillars { grid-template-columns: 1fr; }
  .pillar + .pillar { border-left: 0; border-top: 1px solid var(--line); }
  .tmn-facts { border-left: 0; border-top: 1px solid var(--line); }
  .road { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .road::before { display: none; }
  .papers { grid-template-columns: repeat(3, 1fr); }
  .faq { gap: 8px; }
}
@media (max-width: 600px) {
  .hero { padding: 40px 0 48px; }
  .orbit-tag { font-size: 0.76rem; padding: 6px 11px; }
  .orbit-tag:nth-of-type(2) { right: -4%; }
  .block { padding: 64px 0; }
  .hero-actions .btn { flex: 1 1 100%; }
  .tmn-copy, .tmn-facts { padding: 30px 22px; }
  .pillar { padding: 30px 22px; }
  .road { grid-template-columns: 1fr; }
  .papers { grid-template-columns: 1fr 1fr; }
  .contract { flex-direction: column; align-items: stretch; }
}
@media (prefers-reduced-motion: reduce) {
  .orbit-ring, .orbit-glow { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Inner pages (TMN, Learn) ---------- */
.nav-links a.active { color: var(--mint); }
.page-hero { padding: 72px 0 56px; position: relative; overflow: hidden; }
.page-hero::before {
  content: ""; position: absolute; top: -40%; right: -10%; width: 60vw; height: 60vw;
  background: radial-gradient(circle, rgba(45, 183, 255, 0.14), transparent 60%); pointer-events: none;
}
.page-hero .wrap { position: relative; }
.page-hero h1 { font-size: clamp(2.6rem, 6vw, 5rem); line-height: 1; letter-spacing: -0.035em; font-weight: 800; max-width: 14ch; }
.page-hero .hero-fa { max-width: 30ch; }
.page-hero .hero-lede { max-width: 60ch; }
.page-hero .contract { max-width: 640px; margin-bottom: 0; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.panel { border: 1px solid var(--line); border-radius: 28px; background: var(--surface); padding: 36px 34px; }
.panel h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); line-height: 1.1; letter-spacing: -0.025em; margin-bottom: 18px; }
.panel h2 [lang="fa"] { display: block; font-family: var(--fa-display); font-weight: 400; font-size: 0.7em; color: var(--mint); margin-top: 8px; letter-spacing: 0; }
.panel p { color: var(--muted); }
.panel p + p { margin-top: 12px; }
.panel.warn { background: linear-gradient(135deg, rgba(139, 108, 255, 0.08), rgba(10, 24, 32, 1) 60%); }
.checklist { list-style: none; }
.checklist li { padding: 13px 0 13px 30px; border-bottom: 1px solid var(--line); color: var(--text); position: relative; }
.checklist li:last-child { border-bottom: 0; }
.checklist li::before { content: ""; position: absolute; left: 4px; top: 21px; width: 10px; height: 10px; border-radius: 50%; border: 2px solid #8b6cff; }

.supply { display: grid; grid-template-columns: auto 1fr; gap: 48px; align-items: center; }
.supply-num {
  font-size: clamp(5rem, 14vw, 10rem); font-weight: 800; line-height: 0.85; letter-spacing: -0.06em;
  background: var(--spectrum); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.supply h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.1; letter-spacing: -0.025em; margin-bottom: 14px; }
.supply p { color: var(--muted); max-width: 62ch; }
.supply p + p { margin-top: 12px; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 8px; }
.stat { padding: 20px; border-radius: 20px; border: 1px solid var(--line); background: var(--surface); }
.stat span { display: block; color: var(--muted); font-size: 0.92rem; margin-bottom: 6px; }
.stat strong { font-size: 1.2rem; word-break: break-word; }
.stat-note { color: var(--muted); margin-top: 16px; font-size: 0.95rem; }

.notice { border: 1px solid var(--line); border-radius: 22px; padding: 24px 26px; color: var(--muted); font-size: 0.97rem; }
.notice strong { color: var(--text); }

/* Learn */
.topic { padding-top: 8px; }
.topic + .topic { margin-top: 56px; }
.topic-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 20px; flex-wrap: wrap; }
.topic-head h3 { font-size: 1.7rem; letter-spacing: -0.02em; }
.topic-head [lang="fa"] { font-family: var(--fa-display); font-size: 1.35rem; color: var(--mint); }
.topic-head p { color: var(--muted); flex-basis: 100%; }
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.lesson-card {
  display: flex; flex-direction: column; gap: 10px; padding: 28px 28px 26px; border-radius: 24px;
  border: 1px solid var(--line); background: var(--surface); transition: border-color 0.2s ease;
}
.lesson-card:hover { border-color: var(--line-strong); }
.lesson-card h4 { font-size: 1.35rem; line-height: 1.2; letter-spacing: -0.015em; }
.lesson-card p { color: var(--muted); }
.lesson-card .open { margin-top: auto; padding-top: 8px; color: var(--mint); font-weight: 600; }
.featured-wide { display: grid; grid-template-columns: 1.15fr 1fr; border-radius: 28px; overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.featured-wide img { width: 100%; height: auto; align-self: center; }
.featured-wide .featured-body { padding: 36px 34px; display: flex; flex-direction: column; justify-content: center; }
.meta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.meta span { padding: 6px 13px; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--text); font-size: 0.88rem; }

@media (max-width: 960px) {
  .split, .supply, .featured-wide { grid-template-columns: 1fr; }
  .supply { gap: 18px; }
  .stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .page-hero { padding: 44px 0 40px; }
  .panel, .featured-wide .featured-body { padding: 28px 22px; }
  .cards { grid-template-columns: 1fr; }
  .lesson-card { padding: 24px 22px; }
}
.featured-wide h3 { font-size: clamp(1.6rem, 3vw, 2.2rem); line-height: 1.12; letter-spacing: -0.025em; margin: 8px 0 12px; }
.featured-wide p { color: var(--muted); margin-bottom: 20px; }

/* Story / history */
.story { display: grid; grid-template-columns: auto 1fr; gap: 56px; align-items: center; }
.story-year {
  font-size: clamp(5rem, 13vw, 9.5rem); font-weight: 800; line-height: 0.85; letter-spacing: -0.06em;
  color: transparent; -webkit-text-stroke: 2px var(--mint);
}
.story h2 { font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.05; letter-spacing: -0.03em; margin-bottom: 16px; }
.story h2 [lang="fa"] { display: block; font-family: var(--fa-display); font-weight: 400; font-size: 0.62em; color: var(--mint); margin-top: 12px; letter-spacing: 0; line-height: 1.4; }
.story p { color: var(--muted); max-width: 60ch; }
.story p + p { margin-top: 12px; }
.story .hero-actions { margin-top: 26px; }

.timeline { list-style: none; position: relative; max-width: 820px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--mint), var(--cyan) 60%, var(--line)); }
.timeline li { position: relative; padding: 0 0 36px 44px; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li::before { content: ""; position: absolute; left: 0; top: 6px; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 2px solid var(--mint); }
.timeline li.quiet::before { border-style: dashed; border-color: var(--muted); }
.timeline li.next::before { border-color: var(--line-strong); }
.timeline .when { font-weight: 700; color: var(--mint); }
.timeline li.quiet .when, .timeline li.next .when { color: var(--muted); }
.timeline h3 { font-size: 1.35rem; letter-spacing: -0.015em; margin: 2px 0 8px; }
.timeline p { color: var(--muted); }
.timeline a { color: var(--mint); text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 960px) {
  .story { grid-template-columns: 1fr; gap: 20px; }
}

/* Hero network map */
.map { position: relative; width: min(500px, 100%); aspect-ratio: 1; margin-inline: auto; }
.map::before {
  content: ""; position: absolute; inset: 8%; border-radius: 50%;
  background: radial-gradient(circle, rgba(45, 183, 255, 0.16), rgba(139, 108, 255, 0.06) 55%, transparent 70%);
  filter: blur(20px);
}
.map canvas { position: relative; width: 100%; height: 100%; display: block; }
.map .orbit-tag:nth-of-type(1) { top: 4%; left: 2%; }
.map .orbit-tag:nth-of-type(2) { top: 40%; right: -4%; }
.map .orbit-tag:nth-of-type(3) { bottom: 6%; left: 6%; }

/* Whitepapers: V5 first, archive below */
.paper-main {
  display: grid; grid-template-columns: auto 1fr auto; gap: 32px; align-items: center;
  padding: 34px 36px; border-radius: 28px; border: 1px solid transparent;
  background: linear-gradient(var(--surface-2), var(--surface-2)) padding-box, var(--spectrum) border-box;
}
.paper-main .v {
  font-size: clamp(3.5rem, 8vw, 5.5rem); font-weight: 800; line-height: 0.9; letter-spacing: -0.05em;
  background: var(--spectrum); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.paper-title { display: block; font-size: 1.45rem; font-weight: 700; letter-spacing: -0.015em; margin-bottom: 8px; }
.paper-desc { display: block; color: var(--muted); max-width: 62ch; }
.archive { margin-top: 20px; border: 0; }
details.archive:first-of-type { border-top: 0; }
.archive summary { font-size: 1.02rem; font-weight: 600; color: var(--muted); padding: 16px 4px; justify-content: flex-start; gap: 12px; }
.archive summary::after { order: -1; }
.archive-note { color: var(--muted); font-size: 0.95rem; margin: 0 4px 18px; max-width: 70ch; padding: 0; }
.archive .papers { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 960px) {
  .map { width: min(380px, 92%); order: -1; }
  .paper-main { grid-template-columns: 1fr; gap: 16px; padding: 28px 24px; }
  .paper-main .btn { justify-self: start; }
  .archive .papers { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .map .orbit-tag:nth-of-type(2) { right: 0; }
}
.archive .papers { grid-template-columns: minmax(0, 300px); }