@import url("https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,700&family=IBM+Plex+Mono:wght@400;500&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap");

:root {
  --bg: #120f13;
  --panel: rgba(31, 24, 34, 0.82);
  --panel-strong: rgba(44, 33, 48, 0.96);
  --panel-soft: rgba(255, 255, 255, 0.04);
  --text: #f7ede3;
  --muted: #c7b7ab;
  --accent: #ff9f5a;
  --accent-2: #ffd166;
  --accent-3: #7dd3fc;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --radius-sm: 16px;
  --content: 1180px;
  --display: "Fraunces", Georgia, serif;
  --body: "Plus Jakarta Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--body);
  line-height: 1.65;
  background:
    radial-gradient(circle at top left, rgba(255, 159, 90, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(125, 211, 252, 0.14), transparent 24%),
    radial-gradient(circle at 50% 20%, rgba(255, 209, 102, 0.08), transparent 26%),
    linear-gradient(180deg, #19131c 0%, #120f13 45%, #0b0a0d 100%);
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 26rem;
  height: 26rem;
  border-radius: 999px;
  filter: blur(80px);
  opacity: 0.2;
  pointer-events: none;
  z-index: 0;
}

body::before {
  top: 6rem;
  left: -8rem;
  background: #f97316;
}

body::after {
  right: -8rem;
  bottom: 6rem;
  background: #0ea5e9;
}

a {
  color: inherit;
}

.shell {
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(10, 9, 13, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-nav {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0.95rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-back-link {
  flex: 1 0 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #1b140f;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  box-shadow: 0 18px 40px rgba(249, 115, 22, 0.22);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.site-back-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 48px rgba(249, 115, 22, 0.28);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
}

.brand-mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.85rem;
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.6), transparent 35%),
    linear-gradient(135deg, #f97316 0%, #fb7185 45%, #38bdf8 100%);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 30px rgba(249, 115, 22, 0.35);
}

.brand-copy strong {
  display: block;
  font-family: var(--display);
  letter-spacing: -0.03em;
}

.brand-copy span {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.4rem;
}

.nav-links a {
  text-decoration: none;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--muted);
  transition: 180ms ease;
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

main {
  max-width: var(--content);
  margin: 0 auto;
  padding: 2rem 1.25rem 4.5rem;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 4rem 3rem 3.2rem;
  border: 1px solid var(--border);
  border-radius: 2rem;
  background:
    radial-gradient(circle at 10% 15%, rgba(255, 159, 90, 0.22), transparent 20%),
    radial-gradient(circle at 85% 20%, rgba(56, 189, 248, 0.18), transparent 22%),
    linear-gradient(180deg, rgba(46, 32, 52, 0.94), rgba(21, 17, 25, 0.96));
  box-shadow: var(--shadow);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.2) 1px, transparent 1px),
    linear-gradient(120deg, rgba(255, 255, 255, 0.04), transparent 35%);
  background-size: 90px 90px, auto;
  opacity: 0.25;
  pointer-events: none;
}

.eyebrow,
.section-kicker {
  margin: 0 0 0.85rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
}

h1,
h2,
h3 {
  font-family: var(--display);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0;
}

h1 {
  font-size: clamp(2.8rem, 7vw, 5.4rem);
  max-width: 12ch;
}

.hero p {
  max-width: 42rem;
  color: #f3e5d7;
  margin: 1.1rem 0 0;
  font-size: 1.12rem;
}

.hero-actions,
.path-actions,
.step-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.6rem;
}

.button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.8rem 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button {
  color: #1b140f;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  box-shadow: 0 12px 30px rgba(249, 115, 22, 0.25);
}

.ghost-button {
  color: var(--text);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
}

.button:hover,
.ghost-button:hover,
.card:hover,
.mini-card:hover,
.accordion:hover {
  transform: translateY(-2px);
}

.stats,
.card-grid,
.path-grid,
.detail-grid,
.install-grid,
.full-stack,
.done-grid {
  display: grid;
  gap: 1.2rem;
}

.stats {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 1.75rem;
}

.stat,
.card,
.mini-card,
.section-panel,
.install-card,
.done-card,
.progress-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.stat,
.mini-card,
.done-card {
  padding: 1.1rem 1.2rem;
}

.stat strong,
.done-card strong {
  display: block;
  font-size: 1.55rem;
  margin-bottom: 0.2rem;
}

.section {
  margin-top: 2.3rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1rem;
}

.section-header p,
.section-intro {
  color: var(--muted);
  max-width: 42rem;
  margin: 0.4rem 0 0;
}

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

.path-grid,
.detail-grid,
.install-grid,
.done-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.section-panel,
.install-card {
  padding: 1.5rem;
}

.card {
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, rgba(255, 159, 90, 0.16), transparent 45%, rgba(56, 189, 248, 0.14));
  opacity: 0;
  transition: opacity 180ms ease;
}

.card:hover::before {
  opacity: 1;
}

.card h3,
.accordion-label h3 {
  margin-bottom: 0.5rem;
  font-size: 1.55rem;
}

.card p,
.mini-card p,
.install-card p,
.done-card p,
.accordion-copy p,
.overview p,
.step-intro p {
  margin: 0.45rem 0 0;
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.34rem 0.65rem;
  background: rgba(255, 255, 255, 0.06);
  color: #fbe1cb;
  font-size: 0.78rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.card-arrow {
  margin-top: 1.1rem;
  font-weight: 600;
  color: var(--accent-2);
}

.step-shell {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 1.4rem;
  align-items: start;
}

.side-panel {
  position: sticky;
  top: 5.75rem;
  padding: 1.35rem;
}

.side-panel ul {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.side-panel li + li {
  margin-top: 0.5rem;
}

.side-panel a {
  display: block;
  text-decoration: none;
  color: var(--muted);
  padding: 0.45rem 0.55rem;
  border-radius: 0.8rem;
}

.side-panel a:hover,
.side-panel a.is-current {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.hero-compact {
  padding: 2.5rem 2.1rem;
}

.hero-compact h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  max-width: none;
}

.overview,
.section-panel {
  padding: 1.4rem 1.5rem;
}

.resource-box,
.resource-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 209, 102, 0.28);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at top right, rgba(255, 209, 102, 0.18), transparent 28%),
    linear-gradient(135deg, rgba(255, 159, 90, 0.18), rgba(56, 189, 248, 0.14) 62%, rgba(18, 15, 19, 0.98));
  box-shadow:
    0 18px 40px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.resource-box::before,
.resource-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.08), transparent 30%),
    radial-gradient(circle at bottom left, rgba(125, 211, 252, 0.14), transparent 24%);
  pointer-events: none;
}

.resource-box {
  margin-top: 1.4rem;
  padding: 1.5rem;
}

.resource-card {
  padding: 1.35rem;
}

.resource-box > *,
.resource-card > * {
  position: relative;
  z-index: 1;
}

.resource-box h2,
.resource-card h3 {
  margin-top: 0.2rem;
}

.resource-box p,
.resource-card p,
.resource-note {
  color: #f3e5d7;
}

.resource-grid,
.resource-link-list {
  display: grid;
  gap: 1rem;
}

.resource-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.resource-actions,
.resource-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.resource-actions {
  margin-top: 1.15rem;
}

.resource-links {
  margin-top: 1rem;
}

.resource-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.6rem;
  padding: 0.65rem 0.95rem;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.11);
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

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

.resource-link-list {
  margin-top: 1rem;
}

.resource-link-list a {
  color: var(--accent-2);
  text-decoration: none;
}

.resource-link-list a:hover {
  text-decoration: underline;
}

.accordion-group {
  display: grid;
  gap: 0.9rem;
}

.accordion {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  overflow: hidden;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.accordion summary {
  list-style: none;
  cursor: pointer;
  padding: 1.2rem 1.3rem;
}

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

.accordion-label {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: start;
}

.accordion-label span {
  flex: 1;
}

.accordion-label small {
  color: var(--accent-2);
  white-space: nowrap;
  margin-top: 0.2rem;
}

.accordion-copy {
  padding: 0 1.3rem 1.25rem;
}

.accordion[open] {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 209, 102, 0.32);
}

.accordion-copy ul,
.install-card ol,
.done-card ul {
  margin: 0.9rem 0 0;
  padding-left: 1.2rem;
}

.accordion-copy li,
.install-card li,
.done-card li {
  margin-top: 0.4rem;
  color: var(--muted);
}

pre {
  margin: 1rem 0 0;
  padding: 1rem 1.1rem;
  border-radius: 1rem;
  background: #0b0c10;
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow-x: auto;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

code {
  font-family: var(--mono);
  font-size: 0.92rem;
}

p code,
li code {
  padding: 0.12rem 0.35rem;
  border-radius: 0.45rem;
  background: rgba(255, 255, 255, 0.07);
}

.step-nav {
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 1.2rem;
}

.progress-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 1.2rem;
  align-items: start;
}

.progress-card {
  position: sticky;
  top: 5.75rem;
  padding: 1.2rem;
}

.progress-bar {
  width: 100%;
  height: 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
  margin: 1rem 0 0.65rem;
}

.progress-bar span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  transition: width 220ms ease;
}

.progress-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.progress-list li {
  color: var(--muted);
  padding: 0.45rem 0;
}

.progress-list li.is-done {
  color: var(--text);
}

.full-stack {
  grid-template-columns: 1fr;
}

.full-stack .accordion summary {
  padding: 1.35rem 1.45rem;
}

.full-stack .accordion-copy {
  padding: 0 1.45rem 1.35rem;
}

.done-grid {
  margin-top: 1rem;
}

.footer-note {
  margin-top: 2.2rem;
  padding: 1.2rem 1.3rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
}

@media (max-width: 1040px) {
  .step-shell,
  .progress-layout {
    grid-template-columns: 1fr;
  }

  .side-panel,
  .progress-card {
    position: static;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  main,
  .site-nav {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero,
  .hero-compact {
    padding: 2rem 1.35rem;
  }

  .stats,
  .card-grid,
  .path-grid,
  .detail-grid,
  .install-grid,
  .done-grid,
  .resource-grid {
    grid-template-columns: 1fr;
  }

  .section-header,
  .accordion-label {
    display: block;
  }
}