/* =============================================
   Bible 2460 — Product Website
   Fresh · Refined · Delicate
   ============================================= */

/* --- Tokens --- */
:root {
  --blue: #57B2DA;
  --blue-light: #EDF6FA;
  --blue-soft: #D4EDF8;
  --blue-dark: #3A8BB8;

  --bg: #FFFFFF;
  --bg-alt: #F7F9FA;
  --text: #1A1A1A;
  --text-2: #5F6B7A;
  --text-3: #9CA3AF;
  --border: #E8EAED;

  --serif: 'Source Serif 4', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 32px;

  --max-w: 1060px;
  --max-w-narrow: 700px;
  --gap: clamp(16px, 2vw, 24px);
}

/* --- Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { background: none; border: none; cursor: pointer; font: inherit; color: inherit; }

/* --- Container --- */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.container--narrow { max-width: var(--max-w-narrow); }

/* --- Section --- */
.section { padding: clamp(80px, 12vh, 140px) 0; }
.section--alt { background: var(--bg-alt); }

.section-header { text-align: center; max-width: 640px; margin: 0 auto clamp(48px, 6vh, 72px); }
.section-header h2 {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3.8vw, 2.5rem);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.section-header p {
  font-size: clamp(0.95rem, 1.2vw, 1.06rem);
  color: var(--text-2);
  line-height: 1.75;
}
.section-header-solo {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3.8vw, 2.5rem);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: clamp(40px, 5vh, 64px);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 2px 12px rgba(87, 178, 218, 0.35);
}
.btn-primary:hover { background: var(--blue-dark); box-shadow: 0 4px 20px rgba(87, 178, 218, 0.4); }

.btn-ghost {
  color: var(--text-2);
  border: 1px solid var(--border);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

.btn-white {
  background: #fff;
  color: var(--blue-dark);
  font-weight: 600;
  box-shadow: 0 2px 16px rgba(0,0,0,0.1);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,0,0,0.15); }

/* ========================
   NAV
   ======================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease;
  pointer-events: none;
}
.site-header.visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.nav {
  display: flex;
  align-items: center;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 16px 24px;
  gap: 8px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Montserrat', var(--sans);
  font-weight: 700;
  font-size: 1.15rem;
  margin-right: auto;
}
.nav-logo img { flex-shrink: 0; }
.app-icon { border-radius: 22.37%; }
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 0.85rem;
  color: var(--text-2);
  transition: color 0.2s;
  letter-spacing: 0.01em;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  margin-left: 24px;
  padding: 8px 20px;
  border-radius: 100px;
  background: var(--blue);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 500;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--blue-dark); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  margin-left: 12px;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.open span:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav-toggle.open span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* ========================
   HERO
   ======================== */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 24px 40px;
  position: relative;
  overflow: hidden;
}

/* Large centered brand at top */
.hero-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: clamp(48px, 8vh, 80px);
  margin-bottom: clamp(32px, 5vh, 56px);
}
.hero-logo { flex-shrink: 0; }
.hero-brand-name {
  font-family: 'Montserrat', var(--sans);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}
.hero-nav {
  display: flex;
  gap: 32px;
  margin-top: 24px;
}
.hero-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  transition: color 0.2s;
  letter-spacing: 0.01em;
}
.hero-nav a:hover { color: var(--blue); }
.hero::before {
  content: '';
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(87,178,218,0.08) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -55%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.hero-inner > * {
  opacity: 0;
  transform: translateY(18px);
  animation: fadeUp 0.7s ease-out forwards;
}
.hero-inner > :nth-child(1) { animation-delay: 0.05s; }
.hero-inner > :nth-child(2) { animation-delay: 0.2s; }
.hero-inner > :nth-child(3) { animation-delay: 0.4s; }

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 20px;
}
.hero-headline {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: clamp(32px, 5vh, 56px);
}
.hero-sub {
  max-width: 520px;
  margin: 0 auto clamp(32px, 5vh, 52px);
  font-size: clamp(0.95rem, 1.4vw, 1.1rem);
  line-height: 1.7;
  color: var(--text-2);
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-footnote {
  position: absolute;
  bottom: 28px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
}

/* ========================
   WIDGET SECTION
   ======================== */
.widget-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.widget-text h2 {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.015em;
  margin-bottom: 1.25rem;
}
.widget-text > p {
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 1rem;
}
.check-list {
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.check-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.92rem;
  color: var(--text-2);
  line-height: 1.6;
}
.check-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue-soft);
  border: 2px solid var(--blue);
}
.closing-line {
  font-family: var(--serif);
  font-style: italic;
  color: var(--blue-dark);
  font-size: 1.05rem;
  margin-top: 24px;
}

/* Phone Mockup */
.widget-visual {
  display: flex;
  justify-content: center;
}
.phone {
  width: 260px;
  background: #111;
  border-radius: 42px;
  padding: 10px;
  box-shadow:
    0 20px 60px rgba(0,0,0,0.15),
    0 0 0 1px rgba(255,255,255,0.08) inset;
  position: relative;
}
.phone-island {
  width: 84px;
  height: 24px;
  background: #111;
  border-radius: 12px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
  transform: translateY(8px);
}
.phone-screen {
  width: 100%;
  aspect-ratio: 9 / 17.5;
  border-radius: 34px;
  background: linear-gradient(155deg, #6BB8D9 0%, #4A8EB0 40%, #7A6FA0 100%);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 16px;
}
.ios-widget {
  width: 100%;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 20px;
  padding: 14px 16px 12px;
}
.ios-widget-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}
.ios-widget-book {
  font-size: 0.72rem;
  font-weight: 600;
  color: #333;
}
.ios-widget-time {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1A1A1A;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.ios-widget-verse {
  font-size: 0.7rem;
  color: #444;
  line-height: 1.5;
  margin-bottom: 10px;
  font-weight: 500;
}
.ios-widget-bottom {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.ios-widget-day {
  font-size: 0.65rem;
  font-weight: 500;
  color: #666;
}
.ios-widget-date {
  font-size: 1.2rem;
  font-weight: 500;
  color: #333;
}

/* ========================
   TRIO (How It Works)
   ======================== */
.trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.trio-card {
  padding: 32px 28px;
  border-radius: var(--r-lg);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  transition: transform 0.25s, box-shadow 0.25s;
}
.trio-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}
.trio-num {
  display: block;
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--blue-soft);
  line-height: 1;
  margin-bottom: 16px;
}
.trio-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.trio-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ========================
   BENTO (Features)
   ======================== */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.bento-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.bento-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}
.bento-card--wide { grid-column: span 2; }
.bento-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.bento-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* Bento visual accents */
.bento-demo-time {
  font-family: var(--serif);
  font-size: 3.2rem;
  font-weight: 300;
  color: var(--blue);
  letter-spacing: -0.04em;
  margin-bottom: 16px;
  line-height: 1;
}
.bento-modes {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.bento-mode {
  padding: 6px 16px;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 500;
}
.bento-mode--light {
  background: #F4F4F4;
  color: #333;
}
.bento-mode--dark {
  background: #2A2A2A;
  color: #E0E0E0;
}
.bento-formats {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--blue);
}
.bento-formats small {
  font-size: 0.6em;
  vertical-align: super;
  margin-left: 1px;
}
.bento-formats-sep {
  width: 1px;
  height: 20px;
  background: var(--border);
}

/* ========================
   LANGUAGES
   ======================== */
.lang-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--gap);
}
.lang-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px 12px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--bg);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.lang-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
  border-color: var(--blue-soft);
}
.lang-abbr {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--blue);
  background: var(--blue-light);
  padding: 2px 10px;
  border-radius: 100px;
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}
.lang-card strong {
  font-size: 0.95rem;
  margin-bottom: 4px;
}
.lang-card span:last-child {
  font-size: 0.78rem;
  color: var(--text-2);
}
.lang-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-3);
  margin-top: clamp(32px, 4vh, 48px);
  line-height: 1.7;
}

/* ========================
   FAQ
   ======================== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
}
.faq {
  background: var(--bg);
}
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--text-3);
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq[open] summary::after {
  transform: rotate(45deg);
}
.faq summary:hover { background: var(--bg-alt); }
.faq-body {
  padding: 0 24px 18px;
}
.faq-body p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.7;
}

/* ========================
   CTA
   ======================== */
.cta {
  padding: clamp(80px, 12vh, 140px) 0;
  background: linear-gradient(135deg, #57B2DA 0%, #3A8BB8 100%);
  text-align: center;
  color: #fff;
}
.cta h2 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.cta p {
  font-size: clamp(0.95rem, 1.3vw, 1.1rem);
  opacity: 0.88;
  margin-bottom: 2rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ========================
   FOOTER
   ======================== */
.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 20px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.footer-brand p {
  font-size: 0.82rem;
  color: var(--text-3);
  line-height: 1.6;
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 0.82rem;
  color: var(--text-2);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--blue); }
.footer-disclaimer {
  font-size: 0.75rem;
  color: var(--text-3);
  max-width: 500px;
  line-height: 1.6;
}
.footer-copy {
  font-size: 0.75rem;
  color: var(--text-3);
}

/* ========================
   SCROLL REVEAL
   ======================== */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.trio-card.reveal:nth-child(2) { transition-delay: 0.08s; }
.trio-card.reveal:nth-child(3) { transition-delay: 0.16s; }
.bento-card.reveal:nth-child(2) { transition-delay: 0.06s; }
.bento-card.reveal:nth-child(3) { transition-delay: 0.12s; }
.bento-card.reveal:nth-child(4) { transition-delay: 0.18s; }
.bento-card.reveal:nth-child(5) { transition-delay: 0.24s; }
.lang-card.reveal:nth-child(2) { transition-delay: 0.04s; }
.lang-card.reveal:nth-child(3) { transition-delay: 0.08s; }
.lang-card.reveal:nth-child(4) { transition-delay: 0.12s; }
.lang-card.reveal:nth-child(5) { transition-delay: 0.16s; }
.lang-card.reveal:nth-child(6) { transition-delay: 0.20s; }
.lang-card.reveal:nth-child(7) { transition-delay: 0.24s; }
.lang-card.reveal:nth-child(8) { transition-delay: 0.28s; }
.lang-card.reveal:nth-child(9) { transition-delay: 0.32s; }
.lang-card.reveal:nth-child(10) { transition-delay: 0.36s; }

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .hero-inner > * { opacity: 1; transform: none; }
}

/* ========================
   RESPONSIVE
   ======================== */
@media (max-width: 900px) {
  .widget-grid { grid-template-columns: 1fr; }
  .widget-visual { order: -1; margin-bottom: 16px; }
  .phone { width: 220px; }
  .trio { grid-template-columns: 1fr; gap: 12px; }
  .bento { grid-template-columns: 1fr 1fr; }
  .bento-card--wide { grid-column: span 2; }
  .lang-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  /* Mobile menu */
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }

  .hero-logo { width: 160px; height: 160px; }
  .hero-headline { font-size: clamp(1.8rem, 7vw, 2.5rem); }
  .hero-nav { gap: 20px; }

  .bento { grid-template-columns: 1fr; }
  .bento-card--wide { grid-column: span 1; }

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

  .faq summary { padding: 16px 18px; font-size: 0.9rem; }
  .faq-body { padding: 0 18px 16px; }
}