/* ============================================
   Z-SPACE DYNAMICS
   Stylesheet · v3.0
   ============================================ */

:root {
  --void: #07090d;
  --void-2: #0c1018;
  --void-3: #141a26;
  --line: rgba(255, 255, 255, 0.08);
  --line-bright: rgba(255, 255, 255, 0.16);
  --ink: #e8eaf0;
  --ink-dim: #9ba3b3;
  --ink-faint: #5e6675;
  --cyan: #6df1ff;
  --cyan-glow: rgba(109, 241, 255, 0.4);
  --violet: #b58cff;
  --violet-glow: rgba(181, 140, 255, 0.4);
  --amber: #ffc56d;
  --amber-glow: rgba(255, 197, 109, 0.4);
  --serif: 'Cormorant Garamond', 'Garamond', serif;
  --sans: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'Courier New', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--void);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: 0.04;
  mix-blend-mode: overlay;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 2;
}

/* ============================================
   STARFIELD + GALAXY (v3 - brighter)
   ============================================ */
.starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.stars {
  position: absolute;
  inset: 0;
  background-repeat: repeat;
}

/* Concentrated, BRIGHTER star density on left side */
.stars-1 {
  background-image:
    radial-gradient(1.5px 1.5px at 8% 12%, rgba(255,255,255,1), transparent),
    radial-gradient(1px 1px at 14% 8%, rgba(255,255,255,0.95), transparent),
    radial-gradient(1.5px 1.5px at 22% 18%, rgba(255,255,255,0.9), transparent),
    radial-gradient(1px 1px at 5% 24%, rgba(255,255,255,1), transparent),
    radial-gradient(1px 1px at 30% 30%, rgba(255,255,255,0.85), transparent),
    radial-gradient(2.5px 2.5px at 18% 22%, rgba(109,241,255,0.9), transparent),
    radial-gradient(1px 1px at 36% 14%, rgba(255,255,255,0.9), transparent),
    radial-gradient(1.5px 1.5px at 44% 26%, rgba(181,140,255,0.85), transparent),
    radial-gradient(1px 1px at 12% 38%, rgba(255,255,255,1), transparent),
    radial-gradient(1px 1px at 28% 42%, rgba(255,255,255,0.85), transparent),
    radial-gradient(0.8px 0.8px at 10% 18%, rgba(255,255,255,0.9), transparent),
    radial-gradient(0.8px 0.8px at 20% 10%, rgba(255,255,255,0.8), transparent),
    radial-gradient(0.8px 0.8px at 26% 20%, rgba(255,255,255,0.7), transparent),
    radial-gradient(0.8px 0.8px at 32% 36%, rgba(255,255,255,0.75), transparent),
    radial-gradient(0.8px 0.8px at 16% 32%, rgba(255,255,255,0.8), transparent),
    radial-gradient(0.8px 0.8px at 38% 22%, rgba(255,255,255,0.7), transparent),
    radial-gradient(0.8px 0.8px at 24% 8%, rgba(255,255,255,0.65), transparent);
  background-size: 100% 100%;
  background-attachment: fixed;
}

.stars-2 {
  background-image:
    radial-gradient(1px 1px at 70% 80%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 85% 40%, rgba(181,140,255,0.5), transparent),
    radial-gradient(1px 1px at 55% 65%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 90% 70%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 78% 92%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1px 1px at 62% 50%, rgba(255,255,255,0.4), transparent);
  background-size: 700px 700px;
  animation: drift2 360s linear infinite;
}

.stars-3 {
  background-image:
    radial-gradient(2px 2px at 25% 50%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 75% 15%, rgba(255,197,109,0.5), transparent);
  background-size: 900px 900px;
  animation: drift3 480s linear infinite;
}

/* Milky Way galaxy band — BRIGHTER in v3 */
.galaxy {
  position: absolute;
  top: -10%;
  left: -10%;
  width: 80%;
  height: 80%;
  pointer-events: none;
  background:
    radial-gradient(ellipse 40% 22% at 30% 30%, rgba(181, 140, 255, 0.32) 0%, rgba(109, 241, 255, 0.18) 30%, transparent 70%),
    radial-gradient(ellipse 55% 30% at 32% 28%, rgba(255, 255, 255, 0.10) 0%, transparent 70%),
    radial-gradient(ellipse 35% 8% at 28% 32%, rgba(7, 9, 13, 0.4) 0%, transparent 80%);
  transform: rotate(-28deg);
  filter: blur(4px);
  opacity: 1;
}

.galaxy::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(0.7px 0.7px at 25% 25%, rgba(255,255,255,1), transparent),
    radial-gradient(0.7px 0.7px at 32% 30%, rgba(255,255,255,1), transparent),
    radial-gradient(0.7px 0.7px at 28% 28%, rgba(255,255,255,0.95), transparent),
    radial-gradient(0.7px 0.7px at 35% 32%, rgba(255,255,255,0.85), transparent),
    radial-gradient(0.7px 0.7px at 22% 30%, rgba(255,255,255,0.95), transparent),
    radial-gradient(1.2px 1.2px at 30% 28%, rgba(181,140,255,0.75), transparent),
    radial-gradient(1.2px 1.2px at 26% 32%, rgba(109,241,255,0.75), transparent),
    radial-gradient(0.7px 0.7px at 33% 26%, rgba(255,255,255,0.85), transparent),
    radial-gradient(0.7px 0.7px at 27% 34%, rgba(255,255,255,0.8), transparent),
    radial-gradient(0.7px 0.7px at 20% 26%, rgba(255,255,255,0.75), transparent);
  filter: blur(0.3px);
}

@keyframes drift2 {
  from { transform: translate(0, 0); }
  to { transform: translate(700px, -700px); }
}
@keyframes drift3 {
  from { transform: translate(0, 0); }
  to { transform: translate(-900px, 450px); }
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(7, 9, 13, 0.7);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 22px;
  padding-bottom: 22px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 16px;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.15em;
  color: var(--cyan);
  padding: 6px 10px;
  border: 1px solid var(--line-bright);
  border-radius: 2px;
  background: rgba(109, 241, 255, 0.04);
}

.brand-dot {
  color: var(--violet);
  margin: 0 1px;
}

.brand-name {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
  text-decoration: none;
  position: relative;
  padding: 4px 0;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--ink);
}

.nav-link.active {
  color: var(--cyan);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
}

/* ============================================
   HERO — SPLIT LAYOUT
   ============================================ */
.hero-split {
  padding: 100px 0 100px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.9s ease 0.1s forwards;
}

.meta-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  text-transform: uppercase;
}

.meta-divider {
  width: 1px;
  height: 12px;
  background: var(--line-bright);
}

.hero-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(44px, 6.5vw, 92px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin-bottom: 36px;
}

.hero-title .line {
  display: block;
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp 1.1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}
.line-1 { animation-delay: 0.2s; }
.line-2 { animation-delay: 0.4s; padding-left: 0.6em; }
.line-3 { animation-delay: 0.6s; padding-left: 1.2em; }

.hero-title em {
  font-style: italic;
  color: var(--cyan);
  font-weight: 300;
}

.hero-lede {
  max-width: 540px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-dim);
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeUp 0.9s ease 0.8s forwards;
}

.hero-lede strong {
  color: var(--ink);
  font-weight: 500;
}

.hero-lede em {
  color: var(--cyan);
  font-style: italic;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.9s ease 1s forwards;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   HERO VISUAL — CONVERGENCE GRAPHIC
   ============================================ */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  animation: fadeIn 1.4s ease 0.4s forwards;
}

.convergence {
  width: 100%;
  max-width: 580px;
  height: auto;
  filter: drop-shadow(0 0 40px rgba(109, 241, 255, 0.2));
}

.convergence .orbits {
  animation: rotate-slow 80s linear infinite;
  transform-origin: 260px 280px;
}

.convergence .arcs {
  animation: rotate-reverse 120s linear infinite;
  transform-origin: 260px 280px;
}

.convergence .network line {
  animation: pulse-line 4s ease-in-out infinite;
}
.convergence .network line:nth-child(2n) { animation-delay: 0.8s; }
.convergence .network line:nth-child(3n) { animation-delay: 1.6s; }
.convergence .network line:nth-child(5n) { animation-delay: 2.4s; }

.convergence .node {
  animation: float-node 6s ease-in-out infinite;
  transform-origin: center;
}
.convergence .node-helix { animation-delay: 1s; }
.convergence .node-energy { animation-delay: 2s; }
.convergence .node-network { animation-delay: 3s; }
.convergence .node-wave { animation-delay: 4s; }
.convergence .node-compass { animation-delay: 5s; }

@keyframes rotate-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes rotate-reverse {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}
@keyframes pulse-line {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.6; }
}
@keyframes float-node {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}
@keyframes fadeIn {
  to { opacity: 1; }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid;
  border-radius: 2px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--cyan);
  color: var(--void);
  border-color: var(--cyan);
  box-shadow: 0 0 20px rgba(109, 241, 255, 0.2);
}

.btn-primary:hover {
  background: transparent;
  color: var(--cyan);
  box-shadow: 0 0 30px rgba(109, 241, 255, 0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-bright);
}

.btn-ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ============================================
   BAND
   ============================================ */
.band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 80px 0;
  background: linear-gradient(180deg, transparent, rgba(20, 26, 38, 0.3), transparent);
}

.band-inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 64px;
}

.band-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--violet);
  margin-bottom: 16px;
}

.band-head {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 32px;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.band-text {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.7;
}

.band-text em {
  color: var(--cyan);
  font-style: italic;
}

/* ============================================
   INVITATION (Homepage - "Introductions, not textbooks")
   ============================================ */
.invitation {
  padding: 120px 0;
  position: relative;
}

.invitation::before {
  content: "";
  position: absolute;
  top: 50%;
  right: -10%;
  width: 600px;
  height: 600px;
  transform: translateY(-50%);
  background: radial-gradient(circle, rgba(181, 140, 255, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.invitation-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 80px;
  align-items: start;
  max-width: 1080px;
}

.invitation-mark {
  position: sticky;
  top: 120px;
}

.invitation-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  display: block;
  margin-bottom: 24px;
}

.invitation-glyph {
  opacity: 0.8;
  animation: rotate-slow 80s linear infinite;
}

.invitation-title {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
  color: var(--ink);
}

.invitation-text {
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink-dim);
  margin-bottom: 20px;
  max-width: 640px;
}

.invitation-text:last-of-type {
  margin-bottom: 36px;
}

.invitation-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* ============================================
   FEATURED / SECTIONS
   ============================================ */
.featured {
  padding: 80px 0 120px;
}

.section-head {
  margin-bottom: 64px;
  max-width: 720px;
}

.section-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  display: block;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(36px, 5vw, 64px);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.section-sub {
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink-dim);
}

/* ============================================
   REGISTER CARDS (homepage)
   ============================================ */
.register-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

.register-card {
  position: relative;
  display: block;
  padding: 48px 40px;
  border: 1px solid var(--line-bright);
  border-radius: 4px;
  background: linear-gradient(180deg, rgba(20, 26, 38, 0.5), rgba(12, 16, 24, 0.5));
  text-decoration: none;
  color: var(--ink);
  transition: all 0.4s ease;
  overflow: hidden;
}

.register-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  transition: width 0.4s ease;
}

.register-science::before {
  background: linear-gradient(180deg, var(--cyan), var(--violet));
}

.register-reality::before {
  background: linear-gradient(180deg, var(--amber), #ff9d5c);
}

.register-card:hover {
  transform: translateY(-3px);
  border-color: var(--ink-dim);
}

.register-science:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 40px rgba(109, 241, 255, 0.15);
}

.register-reality:hover {
  border-color: var(--amber);
  box-shadow: 0 0 40px rgba(255, 197, 109, 0.15);
}

.register-mark {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  margin-bottom: 16px;
}

.register-science .register-mark { color: var(--cyan); }
.register-reality .register-mark { color: var(--amber); }

.register-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 56px;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1;
}

.register-text {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 28px;
}

.register-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.register-arrow {
  position: absolute;
  bottom: 32px;
  right: 32px;
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-bright);
  border-radius: 50%;
  transition: all 0.3s ease;
}

.register-science .register-arrow { color: var(--cyan); }
.register-reality .register-arrow { color: var(--amber); }

.register-card:hover .register-arrow {
  transform: translateX(4px);
  border-color: currentColor;
}

/* ============================================
   CLOSING LINE (Homepage)
   ============================================ */
.closing {
  padding: 80px 0 120px;
  border-top: 1px solid var(--line);
  text-align: center;
  position: relative;
}

.closing::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(109, 241, 255, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.closing-line {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.5;
  color: var(--ink-dim);
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.closing-emphasis {
  display: block;
  margin-top: 12px;
  color: var(--ink);
}

/* ============================================
   PAPER LIST
   ============================================ */
.paper-list {
  display: flex;
  flex-direction: column;
}

.paper-row {
  display: grid;
  grid-template-columns: 140px 1fr 160px;
  gap: 40px;
  padding: 36px 0;
  border-top: 1px solid var(--line);
  align-items: start;
  transition: background 0.4s ease;
  position: relative;
}

.paper-row:hover {
  background: linear-gradient(90deg, transparent, rgba(109, 241, 255, 0.02), transparent);
}

.paper-row:last-child {
  border-bottom: 1px solid var(--line);
}

.paper-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 4px;
}

.paper-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.paper-row[data-register="reality"] .paper-num {
  color: var(--amber);
}

.paper-date {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
}

.paper-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  color: var(--ink);
}

.paper-abstract {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 640px;
}

.paper-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding: 4px 10px;
  border: 1px solid var(--line-bright);
  border-radius: 2px;
}

.paper-action {
  display: flex;
  justify-content: flex-end;
  padding-top: 4px;
}

.paper-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  text-decoration: none;
  padding: 8px 14px;
  border: 1px solid var(--cyan);
  border-radius: 2px;
  background: rgba(109, 241, 255, 0.04);
  transition: all 0.3s ease;
}

.paper-link:hover {
  background: var(--cyan);
  color: var(--void);
  box-shadow: 0 0 20px var(--cyan-glow);
}

.paper-row[data-register="reality"] .paper-link {
  color: var(--amber);
  border-color: var(--amber);
  background: rgba(255, 197, 109, 0.04);
}

.paper-row[data-register="reality"] .paper-link:hover {
  background: var(--amber);
  color: var(--void);
  box-shadow: 0 0 20px var(--amber-glow);
}

.see-all {
  margin-top: 48px;
  text-align: center;
}

.see-all-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 0.3s ease;
}

.see-all-link:hover {
  color: var(--cyan);
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
  padding: 120px 0 60px;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.page-header::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 600px;
  transform: translateY(-50%);
  background: radial-gradient(ellipse at 80% 50%, rgba(181, 140, 255, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.page-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  display: block;
  margin-bottom: 20px;
}

.page-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(56px, 8vw, 112px);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}

.page-lede {
  max-width: 720px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink-dim);
}

.page-lede strong {
  color: var(--ink);
  font-weight: 500;
}

/* ============================================
   REGISTER JUMP NAV (whitepapers)
   ============================================ */
.register-jump {
  padding: 36px 0;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 73px;
  z-index: 50;
  background: rgba(7, 9, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.register-jump .container {
  display: flex;
  gap: 32px;
}

.jump-link {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

.jump-link:hover {
  border-bottom-color: var(--ink-dim);
}

.jump-mark {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
}

.jump-label {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--ink);
}

/* ============================================
   ARCHIVE SECTIONS
   ============================================ */
.archive-section {
  padding: 80px 0;
  scroll-margin-top: 130px;
}

.archive-section:first-of-type { padding-top: 60px; }

.register-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  padding-bottom: 40px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.register-header-left {
  flex: 1;
  max-width: 720px;
}

.register-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  display: inline-block;
  margin-bottom: 16px;
  padding: 4px 10px;
  border: 1px solid currentColor;
  border-radius: 2px;
}

.register-header-science .register-tag { color: var(--cyan); }
.register-header-reality .register-tag { color: var(--amber); }

.register-name {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 72px;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.register-blurb {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-dim);
  max-width: 640px;
}

.register-header-glyph {
  flex-shrink: 0;
  opacity: 0.7;
  animation: rotate-slow 60s linear infinite;
}

.archive-end {
  text-align: center;
  padding: 60px 0 0;
}

.end-mark {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
}

/* ============================================
   ABOUT — PORTRAIT
   ============================================ */
.about-portrait {
  padding: 80px 0 40px;
}

.portrait-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 64px;
  align-items: center;
  max-width: 960px;
}

.portrait-frame {
  position: relative;
  width: 320px;
}

.portrait-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  filter: contrast(1.05) saturate(0.92);
  box-shadow:
    0 0 0 1px var(--line-bright),
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(109, 241, 255, 0.08);
}

.portrait-corners {
  position: absolute;
  inset: -8px;
  pointer-events: none;
}

.corner {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--cyan);
  opacity: 0.7;
}

.corner-tl { top: 0; left: 0; border-right: none; border-bottom: none; }
.corner-tr { top: 0; right: 0; border-left: none; border-bottom: none; }
.corner-bl { bottom: 0; left: 0; border-right: none; border-top: none; }
.corner-br { bottom: 0; right: 0; border-left: none; border-top: none; }

.portrait-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.portrait-id, .portrait-coord {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
}

.portrait-id {
  color: var(--cyan);
}

.bio-mark {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--violet);
  display: block;
  margin-bottom: 16px;
}

.bio-name {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 56px;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.bio-role {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
}

.bio-text {
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-dim);
}

.bio-text strong {
  color: var(--ink);
  font-weight: 500;
}

/* ============================================
   PROSE / INQUIRIES
   ============================================ */
.prose, .inquiries {
  padding: 60px 0 140px;
}

.prose-container {
  max-width: 760px;
}

.prose-block {
  margin-bottom: 80px;
  position: relative;
}

.block-mark {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--violet);
  display: block;
  margin-bottom: 16px;
}

.prose-head {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 40px;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}

.prose-block p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink-dim);
  margin-bottom: 20px;
}

.prose-block p strong {
  color: var(--ink);
  font-weight: 500;
}

.prose-block p em {
  color: var(--cyan);
  font-style: italic;
}

.prose-list {
  list-style: none;
  padding: 0;
  margin-top: 16px;
}

.prose-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 16px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink-dim);
}

.prose-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--cyan);
  font-family: var(--mono);
}

.prose-list strong {
  color: var(--ink);
  font-weight: 500;
}

.prose-cta {
  margin-top: 100px;
  padding-top: 48px;
  border-top: 1px solid var(--line);
}

.cta-text {
  font-family: var(--serif);
  font-style: italic;
  font-size: 24px;
  color: var(--ink);
  margin-bottom: 32px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
  padding: 80px 0 140px;
}

.contact-single {
  display: flex;
  justify-content: center;
  margin-bottom: 64px;
}

.contact-card-solo {
  max-width: 560px;
  width: 100%;
}

.contact-card {
  padding: 48px 40px;
  border: 1px solid var(--line-bright);
  border-radius: 4px;
  background: linear-gradient(180deg, rgba(20, 26, 38, 0.4), rgba(12, 16, 24, 0.4));
  position: relative;
  transition: all 0.4s ease;
}

.contact-card:hover {
  border-color: var(--cyan);
  background: linear-gradient(180deg, rgba(109, 241, 255, 0.04), rgba(12, 16, 24, 0.4));
  transform: translateY(-2px);
}

.card-mark {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin-bottom: 16px;
}

.card-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 40px;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.card-text {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 28px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-all;
  transition: color 0.3s ease;
}

.card-link:hover {
  color: var(--ink);
}

.contact-note {
  border: 1px dashed var(--line-bright);
  padding: 28px 32px;
  border-radius: 4px;
  max-width: 720px;
  margin: 0 auto;
}

.note-mark {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--violet);
  display: block;
  margin-bottom: 12px;
}

.contact-note p {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.7;
  font-style: italic;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 48px 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.footer-brand {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 4px;
}

.footer-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

.footer-link {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-link:hover {
  color: var(--cyan);
}

.footer-end {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.footer-coord, .footer-copy {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.1em;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-visual {
    max-width: 480px;
    margin: 0 auto;
  }
  .register-grid {
    grid-template-columns: 1fr;
  }
  .portrait-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .portrait-frame {
    margin: 0 auto;
  }
  .register-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .register-header-glyph {
    align-self: flex-end;
  }
  .invitation-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .invitation-mark {
    position: static;
    display: flex;
    align-items: center;
    gap: 24px;
  }
  .invitation-eyebrow {
    margin-bottom: 0;
  }
  .invitation-glyph svg {
    width: 60px;
    height: 60px;
  }
}

@media (max-width: 900px) {
  .header-inner {
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
  }
  .site-nav {
    gap: 20px;
    flex-wrap: wrap;
  }
  .register-jump {
    top: 145px;
  }
  .archive-section {
    scroll-margin-top: 215px;
  }
  .hero-split {
    padding: 60px 0;
  }
  .hero-title .line {
    padding-left: 0 !important;
  }
  .band-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .paper-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .paper-meta {
    flex-direction: row;
    gap: 16px;
  }
  .paper-action {
    justify-content: flex-start;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .footer-end {
    align-items: flex-start;
  }
  .register-name {
    font-size: 56px;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 20px;
  }
  .hero-meta {
    flex-wrap: wrap;
  }
  .register-title {
    font-size: 44px;
  }
  .bio-name {
    font-size: 44px;
  }
}