/* BookSprite web — marketing + partner portal */

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

:root {
  --clr-brand: #5542d8;
  --clr-brand-dark: #3d2cb1;
  --clr-accent: #ef8d68;
  --clr-bg: #fbfaf7;
  --clr-text: #25213a;
  --clr-muted: #68627b;
  --clr-surface: #ffffff;
  --clr-border: #e2e8f0;
  --radius: 14px;
  font-family: 'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }
body { background: var(--clr-bg); color: var(--clr-text); line-height: 1.6; }

/* Header */
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 5vw; background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.2rem; color: var(--clr-brand); text-decoration: none; }
.brand img { border-radius: 9px; }
nav { display: flex; gap: 1rem; align-items: center; }
nav a:not(.btn-nav) { color: var(--clr-text); text-decoration: none; font-size: .9rem; }
nav a:not(.btn-nav):hover { color: var(--clr-brand); }
nav span { color: var(--clr-muted); font-size: .9rem; }
.btn-nav {
  background: var(--clr-brand); color: #fff; border: none; border-radius: 8px;
  padding: .5rem 1.1rem; font-size: .9rem; cursor: pointer; text-decoration: none;
  font-family: inherit; transition: background .15s;
}
.btn-nav:hover { background: var(--clr-brand-dark); }

/* Main */
main { max-width: 1100px; margin: auto; padding: 0 5vw; }

/* Hero */
.hero {
  display: grid; grid-template-columns: .85fr 1.15fr; gap: 2.5rem;
  align-items: center; padding: 4.5rem 0 5rem;
}
.hero-copy { position: relative; z-index: 1; }
.hero h1 { margin-bottom: 1.25rem; font-size: clamp(2.7rem, 6vw, 4.7rem); font-weight: 700; line-height: 1.02; letter-spacing: -.045em; }
.eyebrow { color: var(--clr-brand); font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 1rem; }
.tagline { max-width: 620px; margin-bottom: 2.5rem; font-size: 1.15rem; color: var(--clr-muted); }
.referral-notice { display: table; margin: -1.25rem 0 2rem; padding: .55rem 1rem; border-radius: 999px; background: #ebe8ff; color: var(--clr-brand-dark); }
.store-badges { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-art { min-width: 0; border-radius: 28px; overflow: hidden; box-shadow: 0 25px 70px rgba(37,33,58,.2); }
.hero-art img { display: block; width: 100%; height: auto; transform: scale(1.01); }
.store-button { min-width: 180px; min-height: 58px; display: grid; align-content: center; padding: .55rem 1.1rem; border-radius: 12px; background: var(--clr-text); color: #fff; text-align: left; text-decoration: none; font-size: .68rem; line-height: 1.15; transition: transform .15s, box-shadow .15s; }
.store-button strong { display: block; font-size: 1.15rem; }
.store-button:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(37,33,58,.18); }
.store-button.unavailable { position: relative; opacity: .68; cursor: default; }
.store-button.unavailable:hover { transform: none; box-shadow: none; }
.store-button small { position: absolute; top: -8px; right: -8px; padding: .18rem .45rem; border-radius: 999px; background: var(--clr-accent); color: var(--clr-text); font-weight: 700; }

/* Features */
.features { padding: 5rem 0; }
.features h2, .pricing h2, .faq h2 { text-align: center; font-size: 1.8rem; margin-bottom: 2rem; }
.section-intro { max-width: 620px; margin: -1.25rem auto 2.5rem; color: var(--clr-muted); text-align: center; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }
.feature-card {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); padding: 2rem 1.5rem; text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,.04);
}
.feature-card .step { width: 2.6rem; height: 2.6rem; display: grid; place-items: center; margin: 0 auto .9rem; border-radius: 50%; background: #ebe8ff; color: var(--clr-brand); font-size: .78rem; font-weight: 700; }
.feature-card h3 { margin-bottom: .5rem; }
.feature-card p, .plan-card > p:last-child { color: var(--clr-muted); }

.benefits { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; margin: 3rem 0; padding: 3.5rem; border-radius: 24px; background: var(--clr-text); color: #fff; }
.benefits h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1.12; }
.benefits div > p:last-child { margin-top: 1rem; color: rgba(255,255,255,.72); }
.benefits ul { list-style: none; }
.benefits li { padding: .8rem 0; border-bottom: 1px solid rgba(255,255,255,.15); }
.benefits li::before { content: "✓"; margin-right: .75rem; color: var(--clr-accent); font-weight: 700; }

/* Pricing */
.pricing { padding: 4rem 0; background: var(--clr-bg); }
.plan-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; }
.plan-card {
  position: relative;
  background: var(--clr-surface); border: 2px solid var(--clr-border);
  border-radius: var(--radius); padding: 2rem 1.5rem; text-align: center;
}
.plan-card.featured { border-color: var(--clr-brand); box-shadow: 0 4px 20px rgba(61,90,241,.15); }
.price { font-size: 1.8rem; font-weight: 700; color: var(--clr-brand); margin: .5rem 0 1rem; }
.price small { color: var(--clr-muted); font-size: .8rem; font-weight: 400; }
.plan-label { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); padding: .25rem .7rem; border-radius: 999px; background: var(--clr-brand); color: #fff; font-size: .72rem; white-space: nowrap; }
.pricing-note { max-width: 650px; margin: 1.5rem auto 0; color: var(--clr-muted); font-size: .82rem; text-align: center; }
.plan-card ul { list-style: none; color: var(--clr-muted); }
.plan-card li::before { content: "✓ "; color: var(--clr-brand); }

/* FAQ */
.faq { padding: 4rem 0; }
details { border: 1px solid var(--clr-border); border-radius: 8px; padding: 1rem 1.25rem; margin-bottom: .75rem; background: var(--clr-surface); }
summary { cursor: pointer; font-weight: 600; }
details p { margin-top: .5rem; color: var(--clr-muted); }

/* Footer */
footer { text-align: center; padding: 2rem 5vw; color: var(--clr-muted); font-size: .9rem; border-top: 1px solid var(--clr-border); margin-top: 4rem; }
footer a { color: var(--clr-brand); }

/* Partner portal */
.auth-card {
  max-width: 460px; margin: 6rem auto; padding: 2.5rem;
  background: var(--clr-surface); border-radius: var(--radius);
  box-shadow: 0 4px 24px rgba(0,0,0,.08); text-align: center;
}
.auth-card h2 { margin-bottom: 1rem; }
.auth-card p { color: var(--clr-muted); margin-bottom: 1.5rem; }
.btn-google {
  display: inline-flex; align-items: center; gap: .65rem;
  background: #fff; border: 1.5px solid var(--clr-border);
  border-radius: 8px; padding: .75rem 1.5rem; font-size: 1rem;
  cursor: pointer; font-family: inherit; transition: box-shadow .15s;
  color: var(--clr-text);
}
.btn-google:hover { box-shadow: 0 2px 8px rgba(0,0,0,.12); }
.btn-google:disabled { opacity: .5; cursor: not-allowed; }

.partner-hero { padding: 3rem 0 2rem; }
.partner-hero h2 { margin-bottom: 1rem; }
.code-display {
  display: inline-flex; align-items: center; gap: 1rem;
  background: #f0f4ff; border: 1.5px dashed var(--clr-brand);
  border-radius: 10px; padding: 1rem 1.5rem; margin-bottom: .75rem;
}
.code-display span { font-size: 1.8rem; font-weight: 700; letter-spacing: .08em; color: var(--clr-brand); font-family: monospace; }
.btn-copy {
  background: var(--clr-brand); color: #fff; border: none;
  border-radius: 6px; padding: .4rem .9rem; cursor: pointer; font-family: inherit; transition: background .15s;
}
.btn-copy:hover { background: var(--clr-brand-dark); }
.code-hint { color: var(--clr-muted); font-size: .9rem; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin: 2rem 0; }
.stat-card {
  background: var(--clr-surface); border: 1px solid var(--clr-border);
  border-radius: var(--radius); padding: 1.5rem 1rem; text-align: center;
}
.stat-card small { display: block; color: var(--clr-muted); font-size: .8rem; margin-bottom: .5rem; }
.stat-card h2 { font-size: 2rem; color: var(--clr-brand); }

.payout-note {
  background: var(--clr-surface); border-left: 4px solid var(--clr-brand);
  border-radius: 0 var(--radius) var(--radius) 0; padding: 1.5rem;
  margin: 2rem 0;
}
.payout-note h3 { margin-bottom: .5rem; }
.payout-note p { color: var(--clr-muted); margin-bottom: .5rem; }

@media (max-width: 640px) {
  header { align-items: center; }
  nav a:not(.btn-nav) { display: none; }
  .hero { grid-template-columns: 1fr; gap: 2rem; padding: 3rem 0 2rem; }
  .hero h1 { font-size: clamp(2.6rem, 13vw, 4rem); }
  .hero-art { border-radius: 20px; }
  .benefits { grid-template-columns: 1fr; gap: 1.5rem; padding: 2rem; }
}