/* CrossCampus marketing — warm neutral surfaces; brand accent from Expo (#667eea). */
/* Font stacks are injected as :root variables from `partials/font-tokens.njk` (see `src/site/constants.js`). */

:root {
  --brand-primary: #667eea;
  --brand-primary-dark: #4c63d2;
  --brand-tint: #eef0ff;
  --text: #1c1917;
  --text-muted: #57534e;
  --surface: #fffcf9;
  --surface-subtle: #f4f1ec;
  --border: #d6d3d1;
  --border-strong: #a8a29e;
  --draft-bg: #fef3c7;
  --draft-border: #d97706;
  --focus-ring: 0 0 0 3px rgba(102, 126, 234, 0.4);
  --radius-sm: 6px;
  --radius-md: 10px;
  --space: 1rem;
  --max-width: 42rem;
  --measure: 65ch;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-ui, 'Inter', system-ui, sans-serif);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--surface-subtle);
  /* Very subtle vertical rhythm — avoids flat single-fill “template” pages */
  background-image: linear-gradient(180deg, rgba(255, 252, 249, 0.35) 0%, transparent 28rem);
}

a {
  color: var(--brand-primary-dark);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
}

a:hover {
  color: #3730a3;
}

a:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space) calc(var(--space) * 1.5);
  padding: 1.1rem clamp(var(--space), 4vw, 2.5rem);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display, 'Space Grotesk', system-ui, sans-serif);
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text);
}

.brand img {
  border-radius: var(--radius-md);
  box-shadow: 0 1px 2px rgba(28, 25, 23, 0.08);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.35rem;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.site-nav a {
  text-decoration: none;
  color: var(--text-muted);
}

.site-nav a:hover {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--brand-primary);
}

.site-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 3.5rem) clamp(var(--space), 4vw, 2.5rem) 4rem;
}

/* Hero: editorial block — no full-bleed “startup gradient” card */
.hero {
  padding: 0 0 0 clamp(0.75rem, 2vw, 1.25rem);
  margin-bottom: clamp(2.5rem, 6vw, 3.75rem);
  border-left: 4px solid var(--brand-primary);
  background: linear-gradient(90deg, var(--brand-tint) 0%, transparent 55%);
}

.hero h1 {
  margin: 0 0 1rem;
  max-width: var(--measure);
  font-family: var(--font-display, 'Space Grotesk', system-ui, sans-serif);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text);
}

.hero .lead {
  margin: 0;
  max-width: var(--measure);
  font-size: 1.08rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* App Store / Google Play official badges + Web Tracker (see `macros/store-badges.njk`) */
.store-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1.25rem;
}

.store-badge-row--hero {
  margin-top: 1.75rem;
}

.store-badge-row--footer {
  margin-top: 0.35rem;
}

.store-badge-link {
  display: inline-flex;
  line-height: 0;
  border-radius: var(--radius-sm);
}

.store-badge-link:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* Apple: on-screen min height 40px per App Store Marketing Guidelines */
.store-badge-img--apple {
  display: block;
  height: 40px;
  width: auto;
}

/* Google Play badge: proportional to Apple lockup (Play asset is wide/short) */
.store-badge-img--google {
  display: block;
  height: 56px;
  width: auto;
}

.button-web-tracker {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--surface);
  color: var(--brand-primary-dark);
  border-color: var(--brand-primary);
}

.button-web-tracker__label {
  line-height: 1.2;
}

.button-web-tracker__new-tab-icon {
  flex-shrink: 0;
  opacity: 0.85;
}

.button-web-tracker:hover {
  background: var(--brand-tint);
  border-color: var(--brand-primary-dark);
}

.button-web-tracker:hover .button-web-tracker__new-tab-icon {
  opacity: 1;
}

.button {
  display: inline-block;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-ui, 'Inter', system-ui, sans-serif);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition:
    background-color 0.15s ease,
    color 0.15s ease,
    border-color 0.15s ease;
}

.button-primary {
  background: var(--brand-primary);
  color: #fff;
  border-color: var(--brand-primary-dark);
}

.button-primary:hover {
  background: var(--brand-primary-dark);
  color: #fff;
}

.button-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.button-secondary:hover {
  border-color: var(--text-muted);
  background: var(--surface);
}

/* Features: numbered list — reads like a product outline, not three equal cards */
.home-section {
  margin-top: clamp(2rem, 5vw, 3rem);
}

.home-section > h2 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display, 'Space Grotesk', system-ui, sans-serif);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.home-section .section-sub {
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: var(--measure);
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: cc-feat;
}

.feature-list > li {
  counter-increment: cc-feat;
  display: grid;
  grid-template-columns: minmax(2.75rem, 3.25rem) 1fr;
  gap: 0.5rem 1.25rem;
  padding: 1.35rem 0;
  border-top: 1px solid var(--border);
}

.feature-list > li:last-child {
  border-bottom: 1px solid var(--border);
}

.feature-list .feature-index {
  font-family: var(--font-display, 'Space Grotesk', system-ui, sans-serif);
  font-size: 1.35rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--brand-primary-dark);
  line-height: 1.3;
  padding-top: 0.1rem;
}

.feature-list .feature-index::before {
  content: counter(cc-feat, decimal-leading-zero);
}

.feature-list .feature-body h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-ui, 'Inter', system-ui, sans-serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.feature-list .feature-body p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.65;
  max-width: var(--measure);
}

.prose {
  max-width: var(--measure);
}

.prose h1 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-family: var(--font-display, 'Space Grotesk', system-ui, sans-serif);
  font-size: clamp(1.85rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.prose h2 {
  font-family: var(--font-display, 'Space Grotesk', system-ui, sans-serif);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.75rem 0 0.65rem;
  letter-spacing: -0.02em;
}

.prose section {
  margin-bottom: calc(var(--space) * 1.25);
}

.prose p {
  margin: 0 0 1rem;
}

.prose ul {
  padding-left: 1.2rem;
  margin: 0 0 1rem;
}

.draft-banner {
  margin: 0;
  padding: var(--space) clamp(var(--space), 4vw, 2.5rem);
  background: var(--draft-bg);
  border-bottom: 2px solid var(--draft-border);
  color: #78350f;
  font-size: 0.95rem;
}

.draft-banner p {
  margin: 0.35rem 0 0;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

.draft-banner strong {
  display: block;
  max-width: var(--max-width);
  margin: 0 auto;
  font-family: var(--font-ui, 'Inter', system-ui, sans-serif);
}

.site-footer {
  max-width: calc(var(--max-width) + 4rem);
  margin: 0 auto;
  padding: 2.5rem clamp(var(--space), 4vw, 2.5rem) 3rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.92rem;
}

.footer-tagline {
  margin: 0 0 0.5rem;
  font-family: var(--font-display, 'Space Grotesk', system-ui, sans-serif);
  font-size: 1.05rem;
  color: var(--text);
}

.store-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin: 1.25rem 0;
}

.store-links-label {
  width: 100%;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.footer-copy {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
}