:root {
  --bg: #faf8f5;
  --bg-soft: #f4f1ec;
  --accent: #ff6a00;
  --ink: #111111;
  --charcoal: #202020;
  --muted: #666666;
  --border: #e6dfd7;
  --shadow-soft: 0 12px 40px rgba(17,17,17,0.04);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  overflow-x: hidden;
  transition: transform 500ms cubic-bezier(0.22, 1, 0.36, 1);
}

body.nav-shift {
  transform: translateX(-4px) rotate(-0.5deg);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(17,17,17,0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(17,17,17,0.02) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.35), transparent);
  opacity: 0.35;
  z-index: -1;
  animation: drift 18s linear infinite;
}

img {
  max-width: 100%;
  display: block;
}

.page-shell {
  width: min(100%, 1380px);
  margin: 0 auto;
  padding: 24px clamp(16px, 3vw, 32px) 48px;
  position: relative;
  z-index: 2;
  transition: transform 280ms ease;
}

@media (hover: hover) and (pointer: fine) {
  body:hover .page-shell {
    transform: perspective(1000px) rotateX(0.4deg) rotateY(-0.4deg);
  }
}

.intro-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: var(--bg);
  display: grid;
  place-items: center;
  pointer-events: none;
}

.intro-overlay.is-hidden {
  opacity: 0;
  visibility: hidden;
  transition: opacity 400ms ease, visibility 400ms ease;
}

.intro-line {
  position: absolute;
  top: 50%;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transform: translateY(-50%);
  animation: introLine 0.8s ease forwards 0.08s;
}

.intro-stage {
  position: relative;
  min-width: min(90vw, 580px);
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: clamp(1.1rem, 2.4vw, 1.7rem);
  letter-spacing: 0.04em;
  color: var(--ink);
  opacity: 0;
  transform: translateY(10px);
  animation: introRise 0.7s ease forwards 0.62s;
}

.intro-prefix {
  font-weight: 600;
  color: var(--accent);
}

.intro-text {
  min-height: 1.3em;
}

.intro-cursor {
  display: inline-block;
  animation: blink 0.8s steps(1) infinite;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 0 28px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: rgba(250,248,245,0.9);
  backdrop-filter: blur(6px);
  z-index: 10;
}

.brand {
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.topnav {
  display: flex;
  gap: 18px;
}

.topnav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.92rem;
  position: relative;
  padding-bottom: 4px;
  transition: color 180ms ease, transform 220ms ease;
}

.topnav a:hover,
.topnav a:focus-visible {
  color: var(--ink);
  transform: translateY(-1px);
}

.topnav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--ink);
  transition: width 220ms ease;
}

.topnav a:hover::after,
.topnav a:focus-visible::after {
  width: 100%;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  padding: 56px 0 72px;
  align-items: center;
  min-height: 80vh;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.76rem;
  color: var(--accent);
  margin: 0 0 14px;
  font-weight: 700;
}

h1,
h2,
h3,
h4 {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  transition: letter-spacing 180ms ease, transform 180ms ease;
}

h1:hover,
h2:hover,
h3:hover,
h4:hover {
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(2.4rem, 4.2vw, 4.2rem);
  line-height: 0.95;
  max-width: 680px;
  margin-bottom: 18px;
}

.lead {
  font-size: 1.04rem;
  color: var(--muted);
  max-width: 590px;
  margin-bottom: 24px;
}

.hero-note {
  margin-bottom: 28px;
  padding: 12px 0 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  max-width: 460px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding-top: 10px;
  color: var(--muted);
}

.hero-meta div {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 110px;
}

.hero-meta strong {
  color: var(--ink);
  font-size: 0.95rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.editorial-card {
  width: min(420px, 100%);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 20px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transform: perspective(1000px) rotateX(2deg) rotateY(-4deg);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.editorial-card:hover {
  transform: perspective(1000px) rotateX(0deg) rotateY(-2deg) translateY(-3px);
  box-shadow: 0 20px 50px rgba(17,17,17,0.06);
}

.notebook-card {
  padding-bottom: 28px;
}

.path-surface {
  position: relative;
  min-height: 180px;
  margin: 14px 0 18px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.8), rgba(244,241,236,0.9));
  overflow: hidden;
  touch-action: none;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}

.path-surface:active {
  cursor: grabbing;
}

.path-guide,
.path-progress {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
}

.path-guide {
  background: repeating-linear-gradient(90deg, rgba(17,17,17,0.16) 0 6px, transparent 6px 14px);
}

.path-progress {
  width: 0;
  background: var(--accent);
  transition: width 320ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: width;
}

.path-marker {
  position: absolute;
  top: 50%;
  left: 8%;
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(255,106,0,0.12);
  transition: left 320ms cubic-bezier(0.16, 1, 0.3, 1), transform 220ms ease;
  will-change: left, transform;
}

.path-marker:active {
  transform: scale(0.96);
}

.path-labels {
  position: absolute;
  inset: auto 8% 12px 8%;
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.focus-pill {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 8px;
}

.focus-status {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.focus-badge {
  border: 1px solid var(--border);
  padding: 7px 10px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  background: rgba(255,255,255,0.45);
}

.xp-pop {
  position: absolute;
  right: 16px;
  bottom: 16px;
  padding: 8px 10px;
  background: var(--ink);
  color: var(--bg);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 220ms ease, transform 220ms ease;
}

.xp-pop.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.style-section {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 18px;
  padding: 0 0 48px;
}

.style-panel,
.style-outcome {
  border: 1px solid var(--border);
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.style-panel {
  background: var(--bg-soft);
}

.style-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.style-option {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  padding: 10px 14px;
  cursor: pointer;
  font: inherit;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.style-option:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.style-option.is-active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.style-outcome {
  background: var(--bg);
}

.style-kicker {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 10px;
}

.style-outcome h3 {
  font-size: 1.35rem;
  margin-bottom: 8px;
}

.style-outcome p {
  color: var(--muted);
}

.notebook-section {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 18px;
  padding: 0 0 48px;
}

.notebook-panel,
.paper-panel {
  border: 1px solid var(--border);
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.notebook-panel {
  background: var(--bg-soft);
}

.note-stack {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.note-card {
  border: 1px dashed var(--border);
  padding: 12px 14px;
  background: rgba(255,255,255,0.55);
  color: var(--ink);
  font-size: 0.96rem;
  transform: rotate(-1deg);
}

.note-two {
  transform: rotate(1deg);
  margin-left: 12px;
}

.note-three {
  transform: rotate(-0.7deg);
  margin-left: 6px;
}

.paper-panel {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  position: relative;
  min-height: 280px;
}

.paper-ruler {
  position: absolute;
  inset: 20px 20px auto 20px;
  height: 1px;
  background: var(--border);
}

.paper-kicker {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-top: 30px;
  margin-bottom: 8px;
}

.paper-panel h3 {
  font-size: 1.35rem;
  margin-bottom: 8px;
}

.paper-panel p {
  color: var(--muted);
  max-width: 470px;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 20px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.diagram {
  position: relative;
  height: 220px;
  border: 1px solid var(--border);
  background: linear-gradient(90deg, transparent 0 16.66%, rgba(17,17,17,0.03) 16.66% 33.33%, transparent 33.33% 50%, rgba(17,17,17,0.03) 50% 66.66%, transparent 66.66% 100%);
  margin-bottom: 18px;
}

.diagram-line {
  position: absolute;
  left: 44px;
  right: 44px;
  height: 1px;
  background: var(--ink);
  transform-origin: left center;
  animation: draw 900ms ease both;
}

.line-one { top: 56px; width: 70%; }
.line-two { top: 112px; width: 55%; animation-delay: 180ms; }
.line-three { top: 168px; width: 82%; animation-delay: 360ms; }

.diagram-node {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  animation: rise 800ms ease both;
}

.node-one { left: 40px; top: 50px; animation-delay: 200ms; }
.node-two { right: 44px; top: 162px; animation-delay: 420ms; }

.card-caption h3 {
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.card-caption p {
  margin: 0;
  color: var(--muted);
}

.split-section,
.story-section,
.insight-section,
.cta {
  padding: 28px 0 48px;
}

.section-intro {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 24px;
  align-items: end;
  margin-bottom: 28px;
}

.section-intro h2,
.story-panel h2,
.cta h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.feature-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 18px;
}

.feature-block {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 24px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 220ms ease, border-color 220ms ease;
}

.feature-block:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.feature-block.large {
  background: var(--bg-soft);
}

.feature-block.accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.feature-block p:first-child {
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.feature-block.accent p:first-child {
  color: rgba(255,255,255,0.78);
}

.story-section {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 24px;
  align-items: start;
}

.story-panel {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 28px;
  box-shadow: var(--shadow-soft);
  transform: translateX(-6px);
  transition: transform 260ms ease, box-shadow 260ms ease;
}

.story-panel:hover {
  transform: translateX(-3px) translateY(-2px);
  box-shadow: 0 14px 40px rgba(17,17,17,0.05);
}

.sticky-panel {
  position: sticky;
  top: 92px;
}

.story-stack {
  display: grid;
  gap: 16px;
}

.story-item {
  border: 1px solid var(--border);
  padding: 22px 24px;
  background: var(--bg);
  transition: transform 220ms ease, border-color 220ms ease;
  position: relative;
  overflow: hidden;
}

.story-item::before {
  content: '';
  position: absolute;
  left: -20px;
  top: 0;
  width: 0;
  height: 100%;
  background: rgba(255,106,0,0.08);
  transition: width 280ms ease;
}

.story-item:hover::before {
  width: 100%;
}

.story-item:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.story-item h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.story-item p {
  margin: 0;
  color: var(--muted);
}

.marquee {
  padding: 28px 0 8px;
  overflow: hidden;
}

.marquee-track {
  display: flex;
  gap: 40px;
  white-space: nowrap;
  animation: marquee 14s linear infinite;
  color: var(--charcoal);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.24em;
}

.insight-section {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 18px;
}

.insight-card {
  border: 1px solid var(--border);
  padding: 24px;
  background: var(--bg);
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 220ms ease, border-color 220ms ease;
}

.insight-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.insight-card.wide {
  background: var(--bg-soft);
}

.insight-card.accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.insight-card h3 {
  font-size: 1.7rem;
  line-height: 1.05;
}

.cta {
  border-top: 1px solid var(--border);
  margin-top: 20px;
  padding-top: 32px;
}

.construction-frame {
  border: 1px solid var(--border);
  background: linear-gradient(90deg, var(--bg) 0%, var(--bg-soft) 100%);
  padding: 28px;
  display: grid;
  gap: 18px;
  box-shadow: var(--shadow-soft);
}

.construction-markers {
  display: flex;
  gap: 10px;
}

.construction-markers span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.construction-copy h2 {
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  margin-bottom: 10px;
}

.construction-copy p {
  color: var(--muted);
  max-width: 720px;
}

.construction-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.construction-grid span {
  border: 1px solid var(--border);
  padding: 8px 12px;
  font-size: 0.9rem;
  color: var(--charcoal);
  background: rgba(255,255,255,0.5);
}

.footer {
  padding: 24px 0 8px;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

.discovery {
  position: relative;
  cursor: help;
  border-bottom: 1px dotted var(--accent);
}

.hover-tip {
  position: fixed;
  pointer-events: none;
  z-index: 50;
  background: var(--ink);
  color: var(--bg);
  padding: 8px 10px;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.hover-tip.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(26px) scale(0.985);
  transition: opacity 700ms cubic-bezier(0.22, 1, 0.36, 1), transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

@keyframes draw {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

@keyframes rise {
  from { transform: translateY(8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(0, -18px, 0); }
}

@keyframes introFade {
  0% { opacity: 1; }
  90% { opacity: 1; }
  100% { opacity: 0; visibility: hidden; }
}

@keyframes introLine {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes introRise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes introWord {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

@media (min-width: 1600px) {
  .hero {
    gap: 64px;
  }
}

@media (max-width: 900px) {
  .hero,
  .story-section,
  .section-intro,
  .feature-grid,
  .insight-section,
  .style-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-bottom: 48px;
  }

  .cta {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 1200px);
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding-bottom: 20px;
  }

  .topnav {
    gap: 14px;
    flex-wrap: wrap;
  }

  .hero {
    padding-top: 40px;
    min-height: auto;
  }

  .hero-meta {
    flex-direction: column;
  }

  .story-panel {
    transform: none;
    position: static;
  }

  .xp-pop {
    right: 12px;
    bottom: 12px;
  }

  .path-labels {
    font-size: 0.64rem;
    inset: auto 6% 8px 6%;
  }

  .notebook-section {
    grid-template-columns: 1fr;
  }

  body.nav-shift {
    transform: none;
  }

  .style-option {
    width: 100%;
    text-align: left;
  }
}