/* ─────────────────────────────────────────────────────────────────────────────
   learn.funfairlabs.com — main stylesheet
   Theme: aligned with funfairlabs.com (thefunfairgates)
   Fonts: Arial/Helvetica (body), matched to parent site
   Colours: warm neutral bg, orange primary hsl(24,78%,42%)
───────────────────────────────────────────────────────────────────────────── */

:root {
  --bg:          #faf9f7;
  --surface:     #ffffff;
  --surface-2:   #f3f1ed;
  --surface-card:#edeae5;
  --border:      #e4e0d8;
  --border-s:    #ccc8be;
  --text:        #1c1a17;
  --text-2:      #4a4540;
  --text-3:      #908a80;

  /* Orange primary — matches funfairlabs.com exactly */
  
  --accent:      #c8611a;
  --accent-d:    #8f3d0d;
  --accent-soft: #fef0e8;
  --accent-t:    rgba(200, 97, 26, 0.13);

  --radius:      10px;
  --radius-lg:   18px;
  --rule:        var(--border);
  --max-w:       1080px;

  /* Font stack matching funfairlabs.com */
  --font-sans:   Arial, Helvetica, sans-serif;
  --font-mono:   'Courier New', Courier, monospace;
  --font-serif:  Georgia, 'Times New Roman', serif;

  --shadow:      0 1px 4px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:   0 6px 24px rgba(0,0,0,.09);
}

/* ── Reset ─────────────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }

/* ── Header — matches funfairlabs.com nav ───────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(250,249,247,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  border-top: 3px solid var(--accent);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding: 0 32px;
  height: 58px;
  gap: 28px;
}

.wordmark {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  flex-shrink: 0;
}

.wordmark-learn { color: var(--accent); }

.header-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 400;
  color: var(--text-2);
  transition: color 0.15s;
}

.nav-link:hover { color: var(--accent); }

/* Auth-gated nav links — hidden until signed in */
.nav-link--plans,
.nav-link--auth {
  display: none;
}

.nav-link--plans.visible,
.nav-link--auth.visible {
  display: inline;
}

/* Sign-in button — always visible in header */
.btn-header-signin {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  padding: 7px 16px;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-header-signin:hover { background: var(--accent-d); }

/* Hide sign-in button once authenticated */
.btn-header-signin.hidden { display: none; }

/* ── Hero ──────────────────────────────────────────────────────────────────── */

.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 64px 32px 48px;
  border-bottom: 1px solid var(--border);
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.hero-kicker::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--accent);
  flex-shrink: 0;
}

.hero-headline {
  font-family: var(--font-sans);
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--text);
  margin-bottom: 12px;
}

.hero-headline em {
  color: var(--accent);
  font-style: normal;
}

.hero-sub {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-2);
  max-width: 520px;
  line-height: 1.6;
}

/* ── Topics wrapper ────────────────────────────────────────────────────────── */

.topics-wrapper {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px 56px;
}

.topic-section {
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}

.topic-section:last-child { border-bottom: none; }

.topic-title {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
  color: var(--text);
}

/* Highlight card */

.highlight-card {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 14px 16px;
  margin-bottom: 14px;
}

.highlight-label {
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}

.highlight-link {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  display: block;
  margin-bottom: 4px;
  line-height: 1.4;
  transition: color 0.15s;
}

.highlight-link:hover { color: var(--accent); }

.highlight-summary {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.6;
}

/* Resource cards */

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.resource-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 4px;
  transition: border-color 0.15s, box-shadow 0.15s;
  cursor: pointer;
  box-shadow: var(--shadow);
}

.resource-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.resource-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

.resource-why {
  font-size: 12px;
  color: var(--text-2);
  line-height: 1.5;
}

.resource-link-icon {
  font-size: 11px;
  color: var(--text-3);
  justify-self: end;
}

/* Claude's take */

.claude-take {
  background: var(--surface-2);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 8px;
}

.take-label {
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 3px;
}

.claude-take p {
  font-size: 13px;
  color: var(--text-2);
  font-style: italic;
  line-height: 1.6;
}

.section-meta {
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--text-3);
}

/* ── Auth gate ─────────────────────────────────────────────────────────────── */

.auth-gate {
  min-height: calc(100vh - 61px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.auth-gate-inner {
  max-width: 400px;
  text-align: center;
}

.auth-kicker {
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 16px;
}

.auth-gate-inner h2 {
  font-family: var(--font-sans);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-bottom: 10px;
}

.auth-sub {
  font-size: 15px;
  color: var(--text-2);
  margin-bottom: 28px;
  line-height: 1.6;
}

.btn-signin {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 10px 20px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
  margin-bottom: 12px;
}

.btn-signin:hover { background: var(--accent-d); }

.auth-note {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.5;
}

.auth-gate--inline {
  min-height: auto;
  padding: 3rem 32px;
  max-width: var(--max-w);
  margin: 0 auto;
  justify-content: flex-start;
}

.auth-gate--inline .auth-gate-inner { text-align: left; }

.btn-signin-inline {
  background: none;
  border: none;
  color: var(--accent);
  font-family: var(--font-sans);
  font-size: inherit;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}

/* ── Plans page ────────────────────────────────────────────────────────────── */

.plans-hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 32px 24px;
  border-bottom: 1px solid var(--border);
}

.plans-hero h1 {
  font-family: var(--font-sans);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}

.plans-hero p {
  color: var(--text-2);
  font-size: 15px;
}

.plans-main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px 56px;
}

.plans-grid {
  display: grid;
  gap: 8px;
  padding: 24px 0;
}

.plan-card {
  display: grid;
  grid-template-columns: 2rem 1fr auto;
  align-items: center;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  transition: border-color 0.15s, box-shadow 0.15s;
  box-shadow: var(--shadow);
  cursor: pointer;
}

.plan-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.plan-icon { font-size: 16px; }

.plan-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.plan-arrow {
  font-size: 16px;
  color: var(--text-3);
}

/* ── Plan article ──────────────────────────────────────────────────────────── */

.plan-page { }

.plan-content {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 40px 32px 64px;
}

.plan-article h1 {
  font-family: var(--font-sans);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.plan-article h2 {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 10px;
}

.plan-article h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 24px 0 6px;
}

.plan-article h4 {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 20px 0 6px;
}

.plan-article p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-2);
  margin-bottom: 12px;
}

.plan-article p:first-child { color: var(--text); }

.plan-article ul, .plan-article ol {
  margin: 8px 0 12px 20px;
}

.plan-article li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-2);
  margin-bottom: 3px;
}

.plan-article a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.plan-article code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.35em;
}

.plan-article .code-block {
  background: #1c1a17;
  border-radius: var(--radius);
  padding: 16px 20px;
  overflow-x: auto;
  margin: 14px 0;
}

.plan-article .code-block code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #f3f1ed;
  background: none;
  border: none;
  padding: 0;
}

.plan-article blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 16px;
  margin: 14px 0;
  color: var(--text-2);
  font-style: italic;
}

.plan-article hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 28px 0;
}

.plan-article strong { font-weight: 600; color: var(--text); }

/* ── Footer ────────────────────────────────────────────────────────────────── */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 16px 32px;
  text-align: center;
}

.site-footer p {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--text-3);
}

.site-footer a {
  color: var(--text-2);
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

/* ── Empty state ───────────────────────────────────────────────────────────── */

.empty-state {
  color: var(--text-3);
  font-style: italic;
  padding: 32px 0;
}

/* ── Responsive ────────────────────────────────────────────────────────────── */

@media (max-width: 700px) {
  .header-inner { padding: 0 16px; gap: 12px; }
  .hero { padding: 40px 16px 32px; }
  .topics-wrapper { padding: 0 16px 40px; }
  .resources-grid { grid-template-columns: 1fr 1fr; }
  .plan-content { padding: 32px 16px 48px; }
  .plans-main { padding: 0 16px 40px; }
  .plans-hero { padding: 32px 16px 20px; }
  .site-footer { padding: 14px 16px; }
  .plan-card { gap: 10px; padding: 14px; }
}

@media (max-width: 480px) {
  .resources-grid { grid-template-columns: 1fr; }
}