/* Great Fact Big Book Step Study — Design System
   Adapted from Portland BBSS proven dark theme.
   Portland wins applied: dark palette, Lora/Inter fonts, fluid clamp(),
   skip link, focus management, mobile sticky CTA, accordion, hamburger nav */

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0d1b2a;
  --bg-card: #1b2838;
  --bg-accent: #1f3044;
  --cream: #e8e2d6;
  --cream-dim: #b0a898;
  --blue: #4a90d9;
  --blue-light: #6aacf0;
  --blue-dark: #2d6a9f;
  --white: #ffffff;
  --radius: 12px;
  --max-width: 800px;
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--cream);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

main { min-height: 60vh; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Skip Link (a11y) ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 200;
  background: var(--blue);
  color: var(--white);
  padding: 8px 16px;
  border-radius: 0 0 8px 8px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 27, 42, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-inner {
  max-width: var(--max-width);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--cream);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  color: var(--cream-dim);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--cream);
  background: rgba(255,255,255,0.06);
}

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--cream);
}
.hamburger svg { width: 24px; height: 24px; }

@media (max-width: 768px) {
  .hamburger { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(13, 27, 42, 0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 8px; font-size: 1rem; }
}

/* ===== Hero ===== */
.hero {
  padding: clamp(100px, 14vw, 140px) 24px clamp(48px, 8vw, 72px);
  text-align: center;
  background: radial-gradient(ellipse at 50% 30%, var(--bg-accent) 0%, var(--bg) 70%);
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-pill {
  display: inline-block;
  background: var(--bg-card);
  border: 1px solid rgba(74, 144, 217, 0.25);
  color: var(--blue-light);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.hero h1 {
  font-family: 'Lora', Georgia, serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 12px;
  color: var(--white);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  color: var(--cream-dim);
  max-width: 540px;
  margin: 0 auto 28px;
  line-height: 1.5;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--blue);
  color: var(--white);
  font-weight: 700;
  font-size: 1.05rem;
  padding: 14px 32px;
  border-radius: 50px;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
  box-shadow: 0 4px 15px rgba(74, 144, 217, 0.25);
}
.hero-cta:hover {
  background: var(--blue-dark);
  transform: translateY(-2px);
}
.hero-cta svg { width: 20px; height: 20px; }

.hero-note {
  font-size: 0.82rem;
  color: var(--cream-dim);
  margin-top: 14px;
}

/* ===== Details Grid ===== */
.details-section {
  padding: 48px 24px;
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.detail-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px 24px;
  border: 1px solid rgba(255,255,255,0.04);
}

.detail-card .label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cream-dim);
  margin-bottom: 6px;
}

.detail-card .value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--cream);
}

.detail-card .value a {
  color: var(--blue-light);
  text-decoration: none;
}
.detail-card .value a:hover { text-decoration: underline; }

@media (max-width: 520px) {
  .details-grid { grid-template-columns: 1fr; }
}

/* ===== Section Titles ===== */
.section-title {
  font-family: 'Lora', Georgia, serif;
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  text-align: center;
  margin-bottom: 12px;
  color: var(--white);
}

.section-subtitle {
  text-align: center;
  color: var(--cream-dim);
  max-width: 540px;
  margin: 0 auto 36px;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== Content Sections ===== */
.content-section {
  padding: 56px 24px;
}
.content-section.alt-bg {
  background: var(--bg-card);
}

/* ===== Pillars Grid ===== */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.pillar-card {
  background: var(--bg-accent);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.04);
}

.pillar-icon {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.pillar-card h3 {
  font-family: 'Lora', Georgia, serif;
  font-size: 1rem;
  margin-bottom: 6px;
  color: var(--white);
}

.pillar-card p {
  font-size: 0.82rem;
  color: var(--cream-dim);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 400px) {
  .pillars-grid { grid-template-columns: 1fr; }
}

/* ===== Steps Grid (first-meeting / newcomer) ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.step-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.04);
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--blue);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.step-card h3 {
  font-size: 0.95rem;
  margin-bottom: 6px;
  color: var(--cream);
}

.step-card p {
  font-size: 0.82rem;
  color: var(--cream-dim);
  line-height: 1.5;
}

@media (max-width: 520px) {
  .steps-grid { grid-template-columns: 1fr; }
}

/* ===== Recording Accordion ===== */
.recording-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.04);
  margin-bottom: 8px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.recording-card.expanded {
  border-color: rgba(74, 144, 217, 0.3);
}

.recording-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  color: var(--cream);
  font-size: 0.95rem;
  font-weight: 500;
  text-align: left;
  font-family: inherit;
  transition: background 0.15s;
}
.recording-header:hover {
  background: rgba(255,255,255,0.03);
}
.recording-header:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}

.recording-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.recording-date {
  font-size: 0.78rem;
  color: var(--cream-dim);
}

.recording-step {
  font-size: 0.72rem;
  color: var(--blue-light);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.recording-chevron {
  width: 20px;
  height: 20px;
  color: var(--cream-dim);
  transition: transform 0.2s;
  flex-shrink: 0;
}
.recording-card.expanded .recording-chevron {
  transform: rotate(180deg);
}

.recording-body {
  display: none;
  padding: 0 20px 20px;
}
.recording-card.expanded .recording-body {
  display: block;
}

.recording-body iframe {
  width: 100%;
  aspect-ratio: 16/9;
  border: none;
  border-radius: 8px;
  background: #000;
}

.recording-body .fallback-link {
  display: block;
  text-align: center;
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--blue-light);
}

/* ===== Email Signup ===== */
.signup-section {
  padding: 48px 24px;
  text-align: center;
}

.signup-form {
  max-width: 440px;
  margin: 0 auto;
  display: flex;
  gap: 8px;
}

.signup-form input[type="email"] {
  flex: 1;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
  background: var(--bg-card);
  color: var(--cream);
  font-size: 0.95rem;
  font-family: inherit;
  outline: none;
}
.signup-form input[type="email"]:focus {
  border-color: var(--blue);
}
.signup-form input[type="email"]::placeholder {
  color: var(--cream-dim);
}

.signup-form button {
  padding: 12px 24px;
  border-radius: 8px;
  border: none;
  background: var(--blue);
  color: var(--white);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}
.signup-form button:hover {
  background: var(--blue-dark);
}

@media (max-width: 520px) {
  .signup-form { flex-direction: column; }
}

/* ===== 7th Tradition / Donate ===== */
.seventh-callout {
  background: var(--bg-accent);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  max-width: var(--max-width);
  margin: 0 auto;
  border: 1px solid rgba(255,255,255,0.04);
}

.seventh-callout h3 {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--white);
}

.seventh-callout p {
  color: var(--cream-dim);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.seventh-callout a {
  color: var(--blue-light);
  font-weight: 600;
  text-decoration: none;
}
.seventh-callout a:hover { text-decoration: underline; }

/* ===== FAQ ===== */
.faq-list {
  max-width: var(--max-width);
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 0;
  background: none;
  border: none;
  color: var(--cream);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
}
.faq-question:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.faq-answer {
  display: none;
  padding-bottom: 20px;
  color: var(--cream-dim);
  font-size: 0.92rem;
  line-height: 1.7;
}
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-chevron { transform: rotate(180deg); }

.faq-chevron {
  width: 18px;
  height: 18px;
  color: var(--cream-dim);
  transition: transform 0.2s;
  flex-shrink: 0;
}

/* ===== Cycle Table (About page) ===== */
.cycle-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin: 0 auto;
  max-width: var(--max-width);
}

.cycle-table th {
  background: var(--bg-accent);
  color: var(--cream);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 12px 16px;
  text-align: left;
}

.cycle-table td {
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  color: var(--cream-dim);
}

.cycle-table tr.current td {
  background: rgba(74, 144, 217, 0.1);
  color: var(--cream);
  font-weight: 600;
}

/* ===== Resources Grid ===== */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.resource-link {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.04);
  border-radius: var(--radius);
  padding: 16px 20px;
  color: var(--cream);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: border-color 0.15s, background 0.15s;
}
.resource-link:hover {
  border-color: rgba(74, 144, 217, 0.3);
  background: var(--bg-accent);
}
.resource-link .icon { font-size: 1.2rem; flex-shrink: 0; }

@media (max-width: 520px) {
  .resources-grid { grid-template-columns: 1fr; }
}

/* ===== Footer ===== */
.site-footer {
  padding: 40px 24px;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: 48px;
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 24px;
  list-style: none;
  margin-bottom: 16px;
}

.footer-nav a {
  color: var(--cream-dim);
  text-decoration: none;
  font-size: 0.85rem;
}
.footer-nav a:hover { color: var(--cream); }

.footer-disclaimer {
  font-size: 0.78rem;
  color: var(--cream-dim);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.6;
  opacity: 0.7;
}

/* ===== Sticky Mobile CTA ===== */
.sticky-mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: rgba(13, 27, 42, 0.95);
  backdrop-filter: blur(12px);
  padding: 12px 16px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid rgba(255,255,255,0.06);
}

.sticky-mobile-cta a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--blue);
  color: var(--white);
  font-weight: 700;
  padding: 14px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 1rem;
}

@media (max-width: 768px) {
  .sticky-mobile-cta { display: block; }
  body { padding-bottom: 72px; }
}

/* ===== Prose (About page body text) ===== */
.prose {
  max-width: var(--max-width);
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--cream-dim);
}

.prose h2 {
  font-family: 'Lora', Georgia, serif;
  font-size: 1.4rem;
  color: var(--white);
  margin: 40px 0 12px;
}

.prose h3 {
  font-size: 1.1rem;
  color: var(--cream);
  margin: 28px 0 8px;
}

.prose p { margin-bottom: 16px; }

.prose ul, .prose ol {
  margin: 0 0 16px 24px;
}

.prose li {
  margin-bottom: 6px;
}

.prose strong { color: var(--cream); }

.prose blockquote {
  border-left: 3px solid var(--blue);
  padding: 12px 20px;
  margin: 20px 0;
  background: var(--bg-card);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--cream);
}

/* ===== Focus Styles ===== */
:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== Print ===== */
@media print {
  .site-header, .sticky-mobile-cta, .hamburger { display: none !important; }
  body { background: #fff; color: #000; padding: 0; }
  .hero { background: none; color: #000; padding: 24px 0; }
  a { color: #000; text-decoration: underline; }
}