:root {
  --bg: #f4efe6;
  --bg-alt: #fbf7f1;
  --surface: rgba(255, 252, 247, 0.82);
  --surface-strong: #fffdf8;
  --ink: #18343a;
  --muted: #5e7376;
  --line: rgba(24, 52, 58, 0.12);
  --accent: #1e7b6f;
  --accent-strong: #145449;
  --accent-soft: #d9efe8;
  --warm: #c98b48;
  --warm-soft: #f6ddbd;
  --shadow: 0 20px 50px rgba(35, 57, 60, 0.12);
  --radius: 28px;
  --radius-sm: 22px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(30, 123, 111, 0.16), transparent 28%),
    radial-gradient(circle at 88% 12%, rgba(201, 139, 72, 0.18), transparent 20%),
    linear-gradient(180deg, #f8f2e8 0%, #f3ecdf 48%, #f8f3eb 100%);
  font-family: "Space Grotesk", "Avenir Next", "Trebuchet MS", sans-serif;
}

code,
pre {
  font-family: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
}

a {
  color: inherit;
}

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding-bottom: 64px;
}

.hero {
  padding: 22px 0 34px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  padding: 14px 18px;
  margin-top: 8px;
  background: rgba(255, 255, 255, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: 999px;
  backdrop-filter: blur(14px);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand a,
.toplinks a,
.button,
.paper-link,
.chip-link,
.footer-link,
.resource-link,
.card-link,
.companion-card {
  text-decoration: none;
}

.toplinks {
  display: flex;
  gap: 18px;
  row-gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  flex: 1 1 auto;
}

.toplinks a {
  opacity: 0.82;
  overflow-wrap: anywhere;
}

.toplinks a:hover,
.footer-link:hover,
.resource-link:hover,
.card-link:hover {
  opacity: 1;
}

.paper-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--ink);
  background: linear-gradient(135deg, rgba(201, 139, 72, 0.34), rgba(217, 239, 232, 0.72));
  border: 1px solid rgba(30, 123, 111, 0.18);
  box-shadow: 0 10px 24px rgba(41, 65, 73, 0.08);
  font-weight: 700;
  white-space: nowrap;
  max-width: 100%;
}

.paper-link:hover,
.button:hover,
.tab-button:hover,
.chip-link:hover,
.resource-link:hover,
.companion-card:hover {
  transform: translateY(-1px);
}

.paper-link-icon {
  position: relative;
  width: 14px;
  height: 16px;
  border: 1.6px solid currentColor;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.78);
  flex: 0 0 auto;
}

.paper-link-icon::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 6px;
  height: 6px;
  background: linear-gradient(135deg, transparent 49%, currentColor 50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(360px, 0.88fr);
  gap: 24px;
  margin-top: 22px;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.section,
.panel-card,
.argument-card,
.comparison-card,
.resource-card,
.workflow-step,
.method-panel,
.info-box,
.companion-card {
  position: relative;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
}

.hero h1,
.section h2,
.panel-card h3,
.argument-card h3,
.comparison-card h3,
.workflow-step h3,
.method-panel h3,
.resource-card h3,
.companion-card h3 {
  font-family: "Source Serif 4", Georgia, serif;
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(2.65rem, 4.8vw, 4.4rem);
  line-height: 0.96;
  margin: 0 0 16px;
  max-width: 16ch;
}

.hero-head {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) clamp(170px, 18vw, 214px);
  gap: clamp(16px, 2.4vw, 26px);
  align-items: center;
  margin-bottom: 10px;
}

.hero-art {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.hero-art img {
  display: block;
  width: min(100%, 218px);
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 16px 30px rgba(41, 65, 73, 0.12));
}

.lede,
.section p,
.argument-card p,
.comparison-card p,
.resource-card p,
.workflow-step p,
.panel-note,
.info-box p,
.info-box li,
.method-summary,
.companion-card p,
.callout,
.summary-text {
  color: var(--muted);
  line-height: 1.7;
}

.lede {
  font-size: 1.08rem;
  max-width: 64ch;
}

.hero-actions,
.hero-pills,
.footer-links,
.link-row,
.chip-row,
.resource-links,
.method-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-actions {
  margin: 24px 0 20px;
}

.chip-row {
  margin-top: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 700;
  max-width: 100%;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button-primary {
  background: var(--ink);
  color: white;
  box-shadow: var(--shadow);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.75);
  color: var(--ink);
  border: 1px solid var(--line);
}

.hero-pills {
  list-style: none;
  padding: 0;
  margin: 0;
}

.hero-pills li,
.badge,
.method-meta span {
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
  font-size: 0.92rem;
  min-width: 0;
  overflow-wrap: anywhere;
}

.hero-panel {
  display: grid;
  gap: 18px;
}

.panel-card,
.section,
.method-panel,
.companion-card {
  background: var(--surface);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.58);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

.panel-card {
  padding: 22px;
}

.gradient-card {
  background:
    linear-gradient(145deg, rgba(30, 123, 111, 0.16), rgba(255, 251, 244, 0.95) 42%, rgba(201, 139, 72, 0.18)),
    var(--surface-strong);
}

.panel-label,
.mini-label,
.step-number {
  margin: 0 0 12px;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

.quick-list,
.plain-list,
.method-list {
  margin: 0;
  padding-left: 18px;
}

.quick-list li,
.plain-list li,
.method-list li {
  margin-bottom: 10px;
  color: var(--muted);
  line-height: 1.68;
}

.code-card pre,
.code-block,
.inline-code {
  margin: 0;
  max-width: 100%;
  overflow-x: auto;
  white-space: pre-wrap;
  line-height: 1.55;
  color: var(--ink);
}

.section {
  padding: 30px;
  margin-top: 26px;
}

.section-heading {
  margin-bottom: 24px;
}

.section-heading h2 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 4vw, 3.3rem);
  line-height: 0.96;
}

.section-heading p,
.section-side-note {
  margin: 0;
  max-width: 72ch;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
  gap: 16px;
  align-items: end;
}

.section-side-note {
  align-self: center;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.72);
  border-radius: 20px;
  border: 1px solid var(--line);
  color: var(--muted);
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.argument-grid,
.comparison-grid,
.resource-grid,
.workflow-grid,
.slot-grid,
.mini-grid,
.feature-grid {
  display: grid;
  gap: 16px;
}

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

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

.argument-grid-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.argument-card,
.comparison-card,
.resource-card,
.workflow-step,
.info-box,
.callout,
.code-block-card {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 18px;
}

.argument-card h3,
.comparison-card h3,
.resource-card h3,
.workflow-step h3,
.info-box h4 {
  margin: 0 0 8px;
}

.argument-card pre,
.resource-card pre,
.code-block-card pre {
  margin-top: 12px;
}

.argument-card strong,
.comparison-card strong,
.resource-card strong,
.workflow-step strong,
.panel-card strong,
.companion-card strong,
.info-box strong {
  color: var(--ink);
}

.comparison-kicker {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
}

.callout {
  margin-top: 18px;
  background: linear-gradient(135deg, rgba(30, 123, 111, 0.11), rgba(201, 139, 72, 0.13));
  overflow-wrap: anywhere;
}

.tab-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.tab-row-primary {
  margin-bottom: 12px;
}

.tab-button {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
  color: var(--ink);
  border-radius: 999px;
  padding: 11px 16px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.tab-button.is-active {
  background: var(--ink);
  color: white;
}

.method-panel {
  padding: 22px;
}

.panel-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.panel-banner h3 {
  margin: 0;
  font-size: 2rem;
}

.method-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.95fr);
  gap: 18px;
}

.method-summary {
  margin: 12px 0 18px;
  font-size: 1.04rem;
}

.method-code {
  margin-top: 16px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
}

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

.info-box ul {
  margin: 0;
  padding-left: 18px;
}

.metric-card {
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
}

.metric-card span {
  display: block;
  color: var(--muted);
  margin-bottom: 6px;
  font-size: 0.92rem;
}

.workflow-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.workflow-step {
  min-height: 100%;
}

.resource-links {
  margin-top: 14px;
}

.resource-link,
.chip-link,
.footer-link,
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink);
  font-weight: 700;
  max-width: 100%;
  transition: transform 0.2s ease;
}

.summary-stack {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.summary-row {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  min-width: 0;
  overflow-wrap: anywhere;
}

.summary-row span {
  display: block;
  color: var(--muted);
  margin-bottom: 4px;
  font-size: 0.88rem;
}

.companion-card {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 20px;
  padding: 22px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.companion-card img {
  width: 100%;
  height: auto;
}

.companion-card-copy p,
.companion-card-copy h3 {
  margin-top: 0;
}

.companion-card-cta {
  display: inline-block;
  margin-top: 8px;
  color: var(--accent-strong);
  font-weight: 700;
}

.footer-links {
  margin-top: 18px;
}

.site-footer {
  margin-top: 28px;
  text-align: center;
  color: var(--muted);
  font-size: 0.96rem;
}

.site-footer p {
  margin: 10px 0 0;
}

.is-revealed {
  animation: fadeUp 0.6s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .hero-grid,
  .split,
  .method-layout,
  .method-columns,
  .argument-grid,
  .feature-grid,
  .comparison-grid,
  .resource-grid,
  .workflow-grid,
  .slot-grid,
  .workflow-strip,
  .mini-grid,
  .companion-card {
    grid-template-columns: 1fr;
  }

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

  .hero-head {
    grid-template-columns: minmax(0, 1fr) 190px;
    gap: 18px;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 100%);
  }

  .topbar {
    border-radius: 28px;
    align-items: flex-start;
    flex-direction: column;
  }

  .paper-link {
    width: 100%;
    justify-content: center;
  }

  .toplinks {
    width: 100%;
    gap: 10px 14px;
  }

  .hero h1 {
    max-width: 100%;
  }

  .hero-head {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .hero-art img {
    width: min(100%, 180px);
    margin: 0 auto;
  }

  .section,
  .panel-card,
  .method-panel,
  .companion-card {
    padding: 20px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .argument-grid-four {
    grid-template-columns: 1fr;
  }
}