:root {
  --bg: #f4efe5;
  --panel: rgba(255, 250, 244, 0.82);
  --panel-strong: #fffaf2;
  --ink: #1e2326;
  --muted: #5d685f;
  --line: rgba(40, 55, 47, 0.14);
  --accent: #0d6c61;
  --accent-deep: #0d3f43;
  --accent-soft: #d4ece4;
  --signal: #b94f2d;
  --shadow: 0 24px 70px rgba(30, 35, 38, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(13, 108, 97, 0.12), transparent 28rem),
    radial-gradient(circle at right 15%, rgba(185, 79, 45, 0.11), transparent 24rem),
    linear-gradient(180deg, #f6f0e8 0%, #efe8de 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(30, 35, 38, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 35, 38, 0.03) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.4), transparent 72%);
}

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 80px;
}

.site-header,
.hero,
.manifesto-grid,
.section,
.final-call {
  position: relative;
  z-index: 1;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px 22px;
  margin-bottom: 28px;
  background: rgba(255, 250, 244, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(14px);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--accent-deep), var(--accent));
  color: #eef8f6;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.eyebrow {
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--accent);
}

.brand-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.site-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: 1.35fr 0.95fr;
  gap: 28px;
  align-items: stretch;
  margin-bottom: 28px;
}

.hero-copy,
.hero-panel,
.manifesto-card,
.section,
.final-call {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 44px;
  border-radius: 36px;
}

.hero-copy h1,
.section-heading h2,
.final-call h2 {
  margin: 0;
  font-family: "Instrument Serif", "Times New Roman", serif;
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero-copy h1 {
  font-size: clamp(3.4rem, 8vw, 6.8rem);
  max-width: 11ch;
}

.hero-copy h1 span {
  color: var(--accent-deep);
  font-style: italic;
}

.hero-text {
  max-width: 62ch;
  margin: 26px 0 0;
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 20px;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent-deep), var(--accent));
  color: #eff8f6;
  box-shadow: 0 16px 34px rgba(13, 63, 67, 0.22);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  border: 1px solid var(--line);
}

.hero-panel {
  border-radius: 36px;
  padding: 24px;
  display: grid;
  gap: 18px;
  align-content: start;
}

.metric-card,
.bound-card,
.step-card,
.architecture-column,
.principle-card,
.program-card {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 26px;
}

.metric-card {
  padding: 24px;
}

.metric-label,
.metric-note,
.bound-head p,
.bound-values span,
.program-tag {
  margin: 0;
}

.metric-label,
.program-tag,
.bound-head p {
  color: var(--muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
}

.metric-value {
  margin: 14px 0 10px;
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.06em;
}

.metric-note,
.bound-values span,
.step-card p,
.principle-card p,
.program-card p,
.proof-copy p,
.proof-row span:last-child {
  color: var(--muted);
  line-height: 1.65;
}

.bound-card {
  padding: 24px;
}

.bound-head,
.bound-values,
.proof-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.bound-head span {
  font-weight: 800;
  color: var(--signal);
}

.bound-track {
  position: relative;
  height: 180px;
  margin: 18px 0 14px;
  border-radius: 22px;
  overflow: hidden;
  background:
    linear-gradient(rgba(13, 63, 67, 0.08), rgba(13, 63, 67, 0.03)),
    repeating-linear-gradient(
      to top,
      rgba(13, 63, 67, 0.08) 0,
      rgba(13, 63, 67, 0.08) 1px,
      transparent 1px,
      transparent 30px
    );
}

.bound-line {
  position: absolute;
  left: 10px;
  width: calc(100% - 20px);
  height: 3px;
  border-radius: 999px;
  transition: top 600ms ease;
}

.lower-line {
  top: 56%;
  background: linear-gradient(90deg, var(--accent), #7fd2b8);
}

.upper-line {
  top: 18%;
  background: linear-gradient(90deg, var(--signal), #e28c6f);
}

.bound-values strong {
  display: block;
  margin-top: 5px;
  font-size: 1.4rem;
}

.manifesto-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.manifesto-card,
.section,
.final-call {
  border-radius: 34px;
}

.manifesto-card {
  padding: 28px;
}

.card-index {
  margin: 0 0 18px;
  color: var(--signal);
  font-weight: 800;
  font-size: 0.9rem;
}

.manifesto-card h2,
.step-card h3,
.architecture-column h3,
.principle-card h3,
.program-card h3,
.proof-copy h2 {
  margin: 0 0 12px;
}

.manifesto-card h2,
.proof-copy h2 {
  font-family: "Instrument Serif", "Times New Roman", serif;
  font-size: 2rem;
  line-height: 1.02;
  font-weight: 400;
}

.manifesto-card p:last-child,
.theory-copy p,
.final-call p {
  line-height: 1.75;
  color: var(--muted);
}

.section {
  padding: 34px;
  margin-bottom: 28px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
  margin-bottom: 24px;
}

.section-heading h2 {
  font-size: clamp(2.3rem, 5vw, 4.4rem);
  max-width: 12ch;
}

.theory-layout {
  display: grid;
  grid-template-columns: 1.08fr 1fr;
  gap: 24px;
}

.theory-copy {
  background: linear-gradient(180deg, rgba(255, 250, 242, 0.78), rgba(255, 250, 242, 0.58));
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 28px;
}

.theory-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.step-card,
.principle-card,
.program-card {
  padding: 22px;
}

.step-card span {
  color: var(--signal);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 800;
  font-size: 0.75rem;
}

.architecture-frame,
.principles-grid,
.program-grid {
  display: grid;
  gap: 18px;
}

.architecture-frame {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 18px;
}

.architecture-column {
  padding: 26px;
}

.architecture-column-accent {
  background: linear-gradient(180deg, rgba(212, 236, 228, 0.95), rgba(255, 250, 242, 0.95));
}

.architecture-column ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.principles-grid,
.program-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.proof-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 24px;
  align-items: start;
}

.proof-table {
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel-strong);
}

.proof-row {
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}

.proof-row:last-child {
  border-bottom: 0;
}

.proof-head {
  background: rgba(13, 108, 97, 0.08);
  font-weight: 800;
}

.final-call {
  padding: 34px;
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 22px;
  align-items: center;
}

.final-call h2 {
  font-size: clamp(2.2rem, 4vw, 4rem);
  max-width: 12ch;
}

.sim-hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
  margin-bottom: 28px;
}

.sim-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 22px;
  margin-bottom: 28px;
}

.sim-sidebar,
.sim-main,
.sim-card,
.control-card,
.insight-card {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  border-radius: 30px;
}

.sim-sidebar,
.sim-main {
  padding: 24px;
}

.sim-main {
  display: grid;
  gap: 18px;
}

.sim-copy {
  padding: 34px;
  border-radius: 34px;
}

.sim-copy h1 {
  margin: 0;
  font-family: "Instrument Serif", "Times New Roman", serif;
  font-size: clamp(3rem, 7vw, 5.8rem);
  line-height: 0.94;
  font-weight: 400;
  letter-spacing: -0.04em;
}

.sim-copy h1 span {
  color: var(--accent-deep);
  font-style: italic;
}

.sim-copy p,
.sim-card p,
.control-card p,
.insight-card p {
  color: var(--muted);
  line-height: 1.7;
}

.sim-highlight {
  padding: 24px;
  border-radius: 34px;
  background:
    radial-gradient(circle at top, rgba(127, 210, 184, 0.3), transparent 58%),
    linear-gradient(160deg, rgba(255, 250, 242, 0.92), rgba(212, 236, 228, 0.82));
  border: 1px solid var(--line);
}

.sim-highlight h2,
.sim-card h2,
.control-card h2,
.insight-card h2,
.insight-card h3 {
  margin: 0 0 12px;
  font-family: "Instrument Serif", "Times New Roman", serif;
  font-weight: 400;
  letter-spacing: -0.03em;
}

.sim-highlight h2 {
  font-size: 2.2rem;
}

.sim-kpi-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.sim-kpi {
  padding: 16px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
}

.sim-kpi span,
.metric-stat span,
.progress-label,
.range-row label,
.stage-pill small {
  display: block;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
  font-weight: 800;
}

.sim-kpi strong,
.metric-stat strong {
  display: block;
  margin-top: 8px;
  font-size: 1.45rem;
  letter-spacing: -0.04em;
}

.control-card {
  padding: 20px;
}

.control-card + .control-card {
  margin-top: 18px;
}

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

.range-row {
  display: grid;
  gap: 8px;
}

.range-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.range-value {
  color: var(--signal);
  font-weight: 800;
  font-size: 0.92rem;
}

.range-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.control-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.button-ghost {
  background: rgba(255, 255, 255, 0.72);
  color: var(--accent-deep);
  border: 1px solid rgba(13, 108, 97, 0.18);
}

.sim-dashboard {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
}

.sim-card {
  padding: 22px;
}

.particle-cloud {
  display: grid;
  grid-template-columns: repeat(14, minmax(0, 1fr));
  gap: 8px;
  padding: 18px;
  margin-top: 18px;
  border-radius: 24px;
  min-height: 360px;
  background:
    radial-gradient(circle at center, rgba(13, 108, 97, 0.12), transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(244, 239, 229, 0.78));
  border: 1px solid var(--line);
}

.particle {
  aspect-ratio: 1;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(13, 108, 97, 0.9), rgba(127, 210, 184, 0.78));
  box-shadow: 0 0 0 1px rgba(13, 108, 97, 0.08);
  transform: scale(1);
  transition:
    transform 260ms ease,
    opacity 260ms ease,
    background 260ms ease,
    filter 260ms ease;
}

.particle.frozen {
  opacity: 0.16;
  transform: scale(0.65);
  background: linear-gradient(135deg, rgba(30, 35, 38, 0.22), rgba(30, 35, 38, 0.12));
}

.particle.focused {
  filter: brightness(1.14);
  box-shadow: 0 0 0 3px rgba(185, 79, 45, 0.14);
}

.progress-cluster {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.progress-row {
  display: grid;
  gap: 8px;
}

.progress-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.progress-head strong {
  font-size: 0.96rem;
}

.progress-bar {
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(13, 63, 67, 0.08);
}

.progress-fill {
  height: 100%;
  width: 0;
  border-radius: inherit;
  transition: width 260ms ease;
}

.progress-fill.active {
  background: linear-gradient(90deg, var(--accent-deep), var(--accent));
}

.progress-fill.fitness {
  background: linear-gradient(90deg, var(--signal), #ebb39b);
}

.progress-fill.cpu {
  background: linear-gradient(90deg, #3d5660, #90a8a6);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.metric-stat {
  padding: 16px;
  border-radius: 22px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
}

.stage-rail {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.stage-pill {
  padding: 14px 12px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.stage-pill strong {
  display: block;
  margin-top: 8px;
}

.stage-pill.active {
  background: linear-gradient(135deg, rgba(13, 108, 97, 0.16), rgba(127, 210, 184, 0.24));
  border-color: rgba(13, 108, 97, 0.28);
  transform: translateY(-2px);
}

.timeline {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.timeline-bar {
  position: relative;
  height: 44px;
  border-radius: 18px;
  overflow: hidden;
  background: rgba(13, 63, 67, 0.06);
  border: 1px solid var(--line);
}

.timeline-bar::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.7) 50%, rgba(255, 255, 255, 0) 100%);
  transform: translateX(-100%);
  animation: shimmer 3.2s linear infinite;
}

.timeline-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(13, 108, 97, 0.95), rgba(185, 79, 45, 0.72));
  transition: width 240ms ease;
}

.timeline-note {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

.chip-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.chip {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  font-weight: 700;
  font-size: 0.9rem;
}

.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.insight-card {
  padding: 22px;
}

@keyframes shimmer {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

@media (max-width: 1040px) {
  .hero,
  .theory-layout,
  .proof-section,
  .final-call,
  .architecture-frame,
  .principles-grid,
  .program-grid,
  .manifesto-grid,
  .sim-hero,
  .sim-layout,
  .sim-dashboard,
  .insight-grid,
  .sim-kpi-strip,
  .stage-rail {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 780px) {
  .page-shell {
    width: min(100% - 18px, 1200px);
    padding-top: 14px;
  }

  .site-header,
  .hero-copy,
  .hero-panel,
  .section,
  .final-call,
  .manifesto-card {
    padding: 22px;
    border-radius: 24px;
  }

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

  .site-nav {
    gap: 14px;
  }

  .theory-steps {
    grid-template-columns: 1fr;
  }

  .metric-grid {
    grid-template-columns: 1fr;
  }

  .particle-cloud {
    grid-template-columns: repeat(10, minmax(0, 1fr));
    min-height: 280px;
  }

  .hero-copy h1 {
    font-size: clamp(2.8rem, 14vw, 4.5rem);
  }
}