:root {
  color-scheme: light dark;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-soft: #e9eef4;
  --surface-strong: #dbe3ec;
  --text: #15202e;
  --muted: #5a6777;
  --line: #cdd7e2;
  --accent: #245fce;
  --accent-strong: #16499f;
  --accent-soft: #dbe8ff;
  --on-accent: #f8fbff;
  --code-bg: #142033;
  --code-text: #e5eefc;
  --radius: 16px;
  --radius-control: 10px;
  --shadow: 0 26px 70px rgba(36, 70, 112, 0.14);
  --font-sans: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111721;
    --surface: #192230;
    --surface-soft: #202c3d;
    --surface-strong: #2a384c;
    --text: #edf3fb;
    --muted: #a8b5c6;
    --line: #33445b;
    --accent: #76a5ff;
    --accent-strong: #a8c6ff;
    --accent-soft: #213b69;
    --on-accent: #0d1726;
    --code-bg: #0b111a;
    --code-text: #e5eefc;
    --shadow: 0 26px 70px rgba(0, 0, 0, 0.34);
  }
}

:root[data-theme="dark"] {
  --bg: #111721;
  --surface: #192230;
  --surface-soft: #202c3d;
  --surface-strong: #2a384c;
  --text: #edf3fb;
  --muted: #a8b5c6;
  --line: #33445b;
  --accent: #76a5ff;
  --accent-strong: #a8c6ff;
  --accent-soft: #213b69;
  --on-accent: #0d1726;
  --code-bg: #0b111a;
  --code-text: #e5eefc;
  --shadow: 0 26px 70px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 10% 3%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.86' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
  content: "";
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  font: inherit;
}

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

h1,
h2,
h3,
p,
figure,
ul {
  margin-top: 0;
}

h1,
h2,
h3 {
  letter-spacing: -0.045em;
  line-height: 1.08;
}

h1 {
  max-width: none;
  margin-bottom: 22px;
  font-size: clamp(3rem, 4.2vw, 4.3rem);
  font-weight: 690;
}

.headline-tail {
  display: inline-block;
  white-space: nowrap;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2.25rem, 4.5vw, 4.8rem);
  font-weight: 660;
}

h3 {
  font-size: clamp(1.3rem, 2vw, 2rem);
}

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 70%, transparent);
  outline-offset: 3px;
}

.shell {
  width: min(1400px, calc(100% - 48px));
  margin-inline: auto;
}

.section {
  padding-block: clamp(88px, 10vw, 148px);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  transform: translateY(-160%);
  border-radius: var(--radius-control);
  background: var(--text);
  color: var(--bg);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 74%, transparent);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(18px);
}

.nav {
  display: grid;
  min-height: 72px;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: var(--radius-control);
  background: var(--accent);
  color: var(--on-accent);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 800;
}

.brand-copy {
  display: grid;
  line-height: 1.12;
}

.brand-copy strong {
  font-size: 0.94rem;
  letter-spacing: -0.02em;
}

.brand-copy small {
  margin-top: 4px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.67rem;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: clamp(16px, 2.1vw, 32px);
  color: var(--muted);
  font-size: 0.88rem;
  white-space: nowrap;
}

.nav-links a,
.footer a,
.text-link {
  transition: color 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.footer a:hover,
.text-link:hover {
  color: var(--accent-strong);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle,
.menu-toggle {
  border: 0;
  background: transparent;
  cursor: pointer;
}

.theme-toggle {
  min-width: 38px;
  color: var(--muted);
  font-size: 0.83rem;
}

.menu-toggle {
  display: none;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-control);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 750;
  white-space: nowrap;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.button:hover {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
  transform: translateY(-2px);
}

.button:active,
.filter-button:active,
.phase-tab:active,
.copy-template:active {
  transform: translateY(1px) scale(0.98);
}

.button-small {
  min-height: 40px;
  padding-inline: 16px;
  font-size: 0.84rem;
}

.hero {
  display: grid;
  min-height: calc(100dvh - 72px);
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  align-items: center;
  gap: clamp(38px, 6vw, 92px);
  padding-block: 48px;
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin-bottom: 18px;
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-summary {
  max-width: 28rem;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.4vw, 1.2rem);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 22px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 720;
  white-space: nowrap;
}

.text-link span {
  transition: transform 180ms ease;
}

.text-link:hover span {
  transform: translate(3px, -3px);
}

.hero-media {
  position: relative;
  margin: 0;
}

.hero-media::before {
  position: absolute;
  right: -18px;
  bottom: 52px;
  width: 42%;
  aspect-ratio: 1;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  content: "";
}

.hero-media img {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
}

.hero-media figcaption {
  max-width: 48rem;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.83rem;
}

.metrics-band {
  border-block: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 68%, transparent);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.metrics-grid > div {
  display: grid;
  gap: 3px;
  padding: 28px clamp(18px, 3vw, 42px);
  border-left: 1px solid var(--line);
}

.metrics-grid > div:last-child {
  border-right: 1px solid var(--line);
}

.metrics-grid strong {
  font-size: clamp(1.45rem, 2.4vw, 2.4rem);
  letter-spacing: -0.04em;
}

.metrics-grid span {
  color: var(--muted);
  font-size: 0.82rem;
}

.section-heading {
  max-width: 830px;
  margin-bottom: 54px;
}

.section-heading p {
  max-width: 61ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.transfer-map {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 28px;
}

.transfer-lead {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  padding: clamp(28px, 4vw, 54px);
  border-radius: var(--radius);
  background: var(--code-bg);
  color: var(--code-text);
}

.transfer-kicker {
  margin-bottom: auto;
  color: color-mix(in srgb, var(--accent) 88%, white);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.transfer-lead h3 {
  max-width: 12ch;
  margin-top: 72px;
  margin-bottom: 16px;
  font-size: clamp(2rem, 3.8vw, 3.8rem);
}

.transfer-lead p {
  max-width: 43ch;
  color: #b9c8dc;
}

.transfer-targets,
.stack-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.transfer-targets span {
  padding: 6px 9px;
  border: 1px solid #3c4e66;
  border-radius: 7px;
  color: #dce7f7;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.transfer-bridges {
  display: grid;
  gap: 12px;
}

.bridge-row {
  display: grid;
  min-height: 112px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  padding: 22px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
}

.bridge-row > div {
  display: grid;
  gap: 4px;
}

.bridge-row div:last-child {
  text-align: right;
}

.bridge-row strong {
  letter-spacing: -0.025em;
}

.bridge-row span:not(.bridge-arrow) {
  color: var(--muted);
  font-size: 0.78rem;
}

.bridge-arrow {
  color: var(--accent);
  font-size: 1.4rem;
}

.roadmap {
  border-block: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-soft) 60%, transparent);
}

.phase-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1.28fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.phase-tabs {
  display: grid;
  background: var(--surface-soft);
}

.phase-tab {
  display: grid;
  grid-template-columns: 78px 1fr;
  align-items: center;
  gap: 12px;
  padding: 22px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.phase-tab:last-child {
  border-bottom: 0;
}

.phase-tab span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.73rem;
}

.phase-tab strong {
  font-size: 0.96rem;
}

.phase-tab:hover,
.phase-tab.is-active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.phase-tab.is-active span {
  color: var(--accent-strong);
}

.phase-panel {
  display: grid;
  min-height: 480px;
  align-content: space-between;
  padding: clamp(30px, 5vw, 68px);
}

.phase-panel > div:first-child > span {
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.phase-panel h3 {
  max-width: 14ch;
  margin-block: 16px;
  font-size: clamp(2.4rem, 4.8vw, 5rem);
}

.phase-panel p {
  max-width: 57ch;
  color: var(--muted);
}

.phase-outcomes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 42px;
}

.phase-outcomes div {
  padding-top: 16px;
  border-top: 2px solid var(--accent);
}

.phase-outcomes strong,
.phase-outcomes span {
  display: block;
}

.phase-outcomes strong {
  margin-bottom: 6px;
  font-size: 0.91rem;
}

.phase-outcomes span {
  color: var(--muted);
  font-size: 0.78rem;
}

.curriculum-toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 26px;
  margin-bottom: 28px;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-button,
.reset-progress,
.copy-template {
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: var(--surface);
  cursor: pointer;
  transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.filter-button {
  padding: 10px 14px;
  font-size: 0.83rem;
  font-weight: 700;
}

.filter-button:hover,
.filter-button.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.progress-summary {
  display: grid;
  min-width: 230px;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 8px 14px;
}

.progress-summary > span {
  font-size: 0.8rem;
  font-weight: 700;
}

.progress-line {
  height: 5px;
  grid-column: 1;
  overflow: hidden;
  border-radius: 99px;
  background: var(--surface-strong);
}

.progress-line i {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width 260ms ease;
}

.reset-progress {
  grid-row: 1 / span 2;
  grid-column: 2;
  padding: 8px 10px;
  color: var(--muted);
  font-size: 0.76rem;
}

.reset-progress:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.curriculum-list {
  display: grid;
  gap: 12px;
}

.curriculum-block {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: clip;
  background: color-mix(in srgb, var(--surface) 86%, transparent);
}

.curriculum-block[hidden] {
  display: none;
}

.curriculum-block summary {
  display: grid;
  min-height: 94px;
  grid-template-columns: 105px minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
}

.curriculum-block summary::-webkit-details-marker {
  display: none;
}

.curriculum-block summary > span:first-child {
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.curriculum-block summary div {
  display: grid;
  gap: 3px;
}

.curriculum-block summary strong {
  letter-spacing: -0.025em;
}

.curriculum-block summary small {
  color: var(--muted);
}

.curriculum-block summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.5rem;
}

.curriculum-block[open] summary::after {
  content: "−";
}

.week-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border-top: 1px solid var(--line);
  background: var(--line);
}

.week-card {
  position: relative;
  min-height: 320px;
  padding: 26px;
  background: var(--surface);
}

.week-card.is-complete {
  background: color-mix(in srgb, var(--accent-soft) 34%, var(--surface));
}

.week-card-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.week-number {
  display: grid;
  gap: 4px;
}

.week-number span {
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.week-number strong {
  font-size: 1.22rem;
  letter-spacing: -0.025em;
}

.week-check {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: transparent;
  color: transparent;
  cursor: pointer;
}

.week-check:hover {
  border-color: var(--accent);
}

.week-card.is-complete .week-check {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-accent);
}

.week-focus {
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 0.91rem;
}

.week-meta {
  display: grid;
  gap: 15px;
}

.week-meta div {
  display: grid;
  gap: 3px;
}

.week-meta span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.67rem;
}

.week-meta strong {
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1.5;
}

.curriculum-empty {
  padding: 36px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
}

.projects {
  border-block: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-soft) 54%, transparent);
}

.project-composition {
  display: grid;
  grid-template-columns: minmax(0, 1.36fr) minmax(300px, 0.64fr);
  gap: 18px;
}

.flagship-project {
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.flagship-project img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.flagship-copy {
  padding: clamp(28px, 4vw, 50px);
}

.flagship-copy > span,
.project-card > span,
.score-primary > span,
.closing span {
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.flagship-copy h3 {
  margin-block: 12px;
  font-size: clamp(2rem, 3.8vw, 4rem);
}

.flagship-copy p {
  max-width: 56ch;
  color: var(--muted);
}

.flagship-copy ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 24px;
  margin-bottom: 0;
  padding-left: 20px;
}

.project-side {
  display: grid;
  gap: 18px;
}

.project-card,
.evidence-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.project-card-tinted {
  background: var(--accent-soft);
}

.project-card h3 {
  margin-block: 12px;
}

.project-card p {
  color: var(--muted);
  font-size: 0.9rem;
}

.project-card strong {
  color: var(--accent-strong);
  font-size: 0.79rem;
}

.evidence-card {
  display: grid;
  gap: 14px;
  background: var(--code-bg);
  color: var(--code-text);
}

.evidence-card h3 {
  margin-bottom: 6px;
}

.evidence-card div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-top: 11px;
  border-top: 1px solid #35465d;
  font-size: 0.8rem;
}

.evidence-card span {
  color: #9fb0c6;
}

.architecture-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(108px, 1fr) auto) minmax(108px, 1fr);
  align-items: center;
  gap: 10px;
}

.architecture-flow > div {
  display: grid;
  min-height: 150px;
  align-content: center;
  gap: 5px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: center;
}

.architecture-flow .flow-accent {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.architecture-flow span,
.architecture-flow small {
  color: var(--muted);
  font-size: 0.7rem;
}

.architecture-flow strong {
  font-size: 1.06rem;
}

.architecture-flow > i {
  color: var(--accent);
  font-style: normal;
}

.operating-system {
  border-block: 1px solid var(--line);
  background: var(--surface-soft);
}

.operating-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  align-items: center;
  gap: clamp(36px, 7vw, 110px);
}

.weekly-rhythm p {
  max-width: 52ch;
  color: var(--muted);
}

.time-allocation {
  display: flex;
  min-height: 170px;
  align-items: end;
  gap: 8px;
  margin-block: 34px;
}

.time-allocation div {
  display: flex;
  min-width: 0;
  min-height: calc(var(--weight) * 13px + 32px);
  flex: var(--weight);
  flex-direction: column;
  justify-content: end;
  gap: 3px;
  padding: 12px;
  border-radius: var(--radius-control);
  background: color-mix(in srgb, var(--accent) calc(var(--weight) * 4%), var(--surface));
}

.time-allocation strong {
  color: var(--accent-strong);
  font-size: 1.1rem;
}

.time-allocation span {
  overflow: hidden;
  font-size: 0.69rem;
  text-overflow: ellipsis;
}

.busy-rule {
  padding-left: 16px;
  border-left: 3px solid var(--accent);
  font-size: 0.86rem;
}

.log-template {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--code-bg);
  color: var(--code-text);
  box-shadow: var(--shadow);
}

.template-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 22px;
  border-bottom: 1px solid #33445b;
}

.template-header > div {
  display: grid;
  gap: 3px;
}

.template-header span {
  color: #93a7c1;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.copy-template {
  padding: 8px 12px;
  border-color: #455a75;
  background: transparent;
  color: #dce7f7;
  font-size: 0.76rem;
}

.copy-template:hover {
  border-color: #81a9ef;
  background: #203452;
}

.log-template pre {
  margin: 0;
  padding: 26px;
  overflow-x: auto;
  color: var(--code-text);
  font-family: var(--font-mono);
  font-size: clamp(0.69rem, 1.3vw, 0.82rem);
  line-height: 1.8;
}

.copy-status {
  min-height: 30px;
  margin: 0;
  padding: 0 26px 16px;
  color: #9fb6d4;
  font-size: 0.75rem;
}

.scorecard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.score-primary,
.score-item {
  min-height: 210px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.score-primary {
  display: flex;
  grid-column: span 2;
  grid-row: span 2;
  flex-direction: column;
  justify-content: end;
  background: var(--code-bg);
  color: var(--code-text);
}

.score-primary > strong {
  max-width: 14ch;
  margin-block: 18px;
  font-size: clamp(2.2rem, 4vw, 4.2rem);
  letter-spacing: -0.05em;
  line-height: 1.06;
}

.score-primary p {
  max-width: 47ch;
  margin-bottom: 0;
  color: #acbbcf;
}

.score-item {
  display: grid;
  align-content: end;
}

.score-item > strong {
  color: var(--accent-strong);
  font-size: clamp(2.4rem, 4vw, 4rem);
  letter-spacing: -0.06em;
}

.score-item > span {
  margin-top: 4px;
  font-weight: 750;
}

.score-item > small {
  margin-top: 9px;
  color: var(--muted);
}

.score-item-accent {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.resources {
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-soft) 56%, transparent);
}

.resources-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(40px, 8vw, 120px);
}

.resource-intro p {
  max-width: 52ch;
  color: var(--muted);
}

.stack-cloud span {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.resource-links {
  display: grid;
  align-content: start;
}

.resource-links a {
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: center;
  gap: 18px;
  padding: 22px 8px;
  border-bottom: 1px solid var(--line);
  transition: color 180ms ease, padding-left 180ms ease;
}

.resource-links a:first-child {
  border-top: 1px solid var(--line);
}

.resource-links a:hover {
  padding-left: 16px;
  color: var(--accent-strong);
}

.resource-links span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.closing {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 38px;
  padding-block: clamp(88px, 10vw, 140px);
}

.closing h2 {
  max-width: 16ch;
  margin-block: 14px 0;
}

.footer {
  display: grid;
  min-height: 132px;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.83rem;
}

.footer p {
  margin: 0;
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 650ms cubic-bezier(0.16, 1, 0.3, 1), transform 650ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

@media (max-width: 1120px) {
  .nav-links {
    gap: 14px;
    font-size: 0.82rem;
  }

  .nav-actions .button {
    display: none;
  }

  .architecture-flow {
    grid-template-columns: repeat(3, 1fr);
  }

  .architecture-flow > i {
    display: none;
  }

  .scorecard-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .nav {
    grid-template-columns: auto 1fr auto;
  }

  .menu-toggle {
    display: inline-flex;
    justify-self: end;
    padding: 8px;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    right: 24px;
    left: 24px;
    display: none;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
  }

  .nav-links.is-open {
    display: grid;
  }

  .nav-links a {
    padding: 10px;
  }

  .nav-actions {
    grid-column: 3;
  }

  .hero,
  .transfer-map,
  .phase-layout,
  .project-composition,
  .operating-layout,
  .resources-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-block: 72px;
  }

  .hero-copy {
    max-width: 680px;
  }

  .hero-media {
    width: 88%;
    margin-left: auto;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .metrics-grid > div:nth-child(3) {
    border-top: 1px solid var(--line);
  }

  .metrics-grid > div:nth-child(4) {
    border-top: 1px solid var(--line);
    border-right: 1px solid var(--line);
  }

  .phase-tabs {
    grid-template-columns: repeat(5, minmax(150px, 1fr));
    overflow-x: auto;
  }

  .phase-tab {
    grid-template-columns: 1fr;
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .phase-panel {
    min-height: 430px;
  }

  .curriculum-toolbar {
    grid-template-columns: 1fr;
  }

  .progress-summary {
    max-width: 300px;
  }

  .scorecard-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .shell {
    width: min(100% - 32px, 1400px);
  }

  .section {
    padding-block: 78px;
  }

  .nav-actions {
    display: none;
  }

  .nav {
    grid-template-columns: auto 1fr;
  }

  .hero {
    gap: 42px;
    padding-top: 56px;
  }

  h1 {
    font-size: clamp(2.7rem, 14vw, 4.4rem);
  }

  h2 {
    font-size: clamp(2.1rem, 11vw, 3.6rem);
  }

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

  .hero-media {
    width: 100%;
  }

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

  .metrics-grid > div,
  .metrics-grid > div:last-child {
    border-top: 1px solid var(--line);
    border-right: 1px solid var(--line);
  }

  .metrics-grid > div:first-child {
    border-top: 0;
  }

  .bridge-row {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .bridge-row div:last-child {
    text-align: left;
  }

  .bridge-arrow {
    transform: rotate(90deg);
  }

  .phase-panel h3 {
    font-size: clamp(2.3rem, 13vw, 4rem);
  }

  .phase-outcomes,
  .week-grid,
  .flagship-copy ul,
  .architecture-flow,
  .scorecard-grid {
    grid-template-columns: 1fr;
  }

  .curriculum-block summary {
    grid-template-columns: 74px 1fr auto;
    gap: 10px;
    padding: 18px;
  }

  .curriculum-block summary small {
    display: none;
  }

  .week-card {
    min-height: 0;
  }

  .time-allocation {
    display: grid;
    min-height: 0;
    grid-template-columns: repeat(2, 1fr);
  }

  .time-allocation div {
    min-height: 90px;
  }

  .score-primary {
    grid-column: auto;
    grid-row: auto;
  }

  .closing,
  .footer {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .closing {
    justify-items: start;
  }

  .footer {
    gap: 18px;
    padding-block: 36px;
  }

  .footer p {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header {
    background: var(--bg);
    backdrop-filter: none;
  }
}