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

:root {
  --bg:         #07090f;
  --bg-card:    #0f1525;
  --bg-mid:     #111827;
  --slate:      #1a2744;
  --blue:       #2d5a9e;
  --blue-soft:  #4a7fb5;
  --blue-light: #8ab4d4;
  --gold:       #c9a84c;
  --gold-soft:  #e8c97a;
  --text:       #e2e8f4;
  --text-soft:  #8a9bb8;
  --white:      #ffffff;
  --border:     rgba(255,255,255,0.07);

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'Lato', system-ui, sans-serif;

  --section-pad: 110px 24px;
  --radius: 10px;
  --shadow: 0 8px 40px rgba(0,0,0,0.5);
  --shadow-lg: 0 24px 64px rgba(0,0,0,0.65);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── Utility ── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.section    { padding: var(--section-pad); }
.section-bg       { background: var(--bg); }
.section-bg-mid   { background: var(--bg-mid); }
.section-bg-slate { background: var(--slate); }
.center { text-align: center; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.two-col.reverse { direction: rtl; }
.two-col.reverse > * { direction: ltr; }

.section-label {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.section-label.center { text-align: center; }

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
  margin-bottom: 24px;
}
.section-title em { color: var(--blue-light); font-style: italic; }
.section-title.center { text-align: center; }

.body-text {
  font-size: 1.05rem;
  color: var(--text-soft);
  margin-bottom: 20px;
  line-height: 1.9;
}
.body-text.center { text-align: center; max-width: 580px; margin-left: auto; margin-right: auto; }

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s ease;
}
.btn-primary {
  background: var(--gold);
  color: var(--bg);
  border-color: var(--gold);
}
.btn-primary:hover { background: var(--gold-soft); border-color: var(--gold-soft); transform: translateY(-2px); box-shadow: 0 6px 28px rgba(201,168,76,0.3); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: rgba(255,255,255,0.25);
}
.btn-ghost:hover { border-color: var(--blue-light); color: var(--blue-light); }

.btn-outline {
  background: transparent;
  color: var(--gold);
  border-color: var(--gold);
}
.btn-outline:hover { background: var(--gold); color: var(--bg); transform: translateY(-2px); }

.btn-slate {
  background: var(--slate);
  color: var(--text);
  border-color: var(--border);
}
.btn-slate:hover { background: var(--blue); border-color: var(--blue); transform: translateY(-2px); }

/* ── Divider ── */
.divider {
  width: 48px;
  height: 2px;
  background: var(--gold);
  margin: 0 0 28px;
  opacity: 0.7;
}
.divider.center { margin: 0 auto 28px; }

/* ── Navbar ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 24px;
  transition: background 0.35s, padding 0.35s, box-shadow 0.35s;
}
#navbar.scrolled {
  background: rgba(7,9,15,0.96);
  backdrop-filter: blur(12px);
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--white);
  text-decoration: none;
  letter-spacing: 0.02em;
  opacity: 0.85;
  transition: opacity 0.2s;
}
.nav-logo:hover { opacity: 1; }
.nav-links {
  display: flex;
  list-style: none;
  gap: 36px;
  align-items: center;
}
.nav-links a {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-soft);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }
.nav-cta {
  background: var(--gold) !important;
  color: var(--bg) !important;
  padding: 9px 22px;
  border-radius: 4px;
  letter-spacing: 0.12em !important;
}
.nav-cta:hover { background: var(--gold-soft) !important; color: var(--bg) !important; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--white); cursor: pointer; }

/* ── Hero ── */
#hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 140px 24px 100px;
  gap: 60px;
  max-width: 1140px;
  margin: 0 auto;
}
#hero-section {
  position: relative;
  background: var(--bg);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 60% 40%, rgba(45,90,158,0.12) 0%, transparent 55%),
    radial-gradient(ellipse at 20% 80%, rgba(201,168,76,0.05) 0%, transparent 45%);
  pointer-events: none;
}
.hero-noise {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  pointer-events: none;
}
.hero-content { z-index: 2; }

.hero-eyebrow {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::after { content: ''; flex: 0 0 40px; height: 1px; background: var(--gold); opacity: 0.5; }

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3.2rem, 7.5vw, 6.5rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.hero-title em {
  color: var(--blue-light);
  font-style: italic;
  display: block;
}
.hero-volume {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--gold);
  opacity: 0.75;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}
.hero-author {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: 36px;
}
.hero-tagline {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--text-soft);
  max-width: 420px;
  margin-bottom: 48px;
  line-height: 1.7;
  border-left: 2px solid var(--gold);
  padding-left: 20px;
  opacity: 0.85;
}
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero book cover */
.hero-cover-wrap {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  animation: floatCover 6s ease-in-out infinite;
}
@keyframes floatCover {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-14px); }
}
.hero-cover {
  width: 260px;
  border-radius: 4px;
  box-shadow:
    -8px 12px 40px rgba(0,0,0,0.8),
    -2px 0 0 rgba(255,255,255,0.04);
  display: block;
}
/* Fallback cover if no image */
.hero-cover-placeholder {
  width: 260px;
  height: 390px;
  background: linear-gradient(160deg, #1a2744 0%, #0a0f1e 100%);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 24px;
  box-shadow: -8px 12px 40px rgba(0,0,0,0.8);
  border-left: 3px solid var(--slate);
}
.hero-cover-placeholder h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 12px;
}
.hero-cover-placeholder h3 em { color: var(--blue-light); font-style: italic; }
.hero-cover-placeholder .vol { font-size: 0.7rem; letter-spacing: 0.2em; color: var(--gold); margin-bottom: 16px; text-transform: uppercase; }
.hero-cover-placeholder hr { width: 32px; border: none; border-top: 1px solid rgba(201,168,76,0.4); margin-bottom: 16px; }
.hero-cover-placeholder .auth { font-size: 0.6rem; letter-spacing: 0.22em; color: var(--text-soft); text-transform: uppercase; }

.hero-cover-glow {
  position: absolute;
  inset: -20px;
  background: radial-gradient(ellipse, rgba(45,90,158,0.18) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: var(--text-soft);
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  z-index: 2;
  opacity: 0.5;
}
.scroll-arrow { margin-top: 8px; animation: bounce 2s infinite; }
@keyframes bounce { 0%,100% { transform: translateY(0); } 50% { transform: translateY(8px); } }

/* ── About Book ── */
.quote-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 48px 44px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  position: relative;
}
.quote-mark {
  font-family: var(--font-serif);
  font-size: 5rem;
  line-height: 0.6;
  color: var(--gold);
  margin-bottom: 20px;
  opacity: 0.4;
}
.quote-text {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-style: italic;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 24px;
}
.quote-attribution {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
  opacity: 0.75;
}

/* ── Reviews ── */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 24px;
  margin-top: 56px;
}
.review-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 36px 32px;
  border: 1px solid var(--border);
  transition: border-color 0.25s, transform 0.25s;
}
.review-card:hover { border-color: rgba(201,168,76,0.3); transform: translateY(-5px); }
.stars { color: var(--gold); font-size: 0.9rem; letter-spacing: 5px; margin-bottom: 20px; }
.review-text {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 20px;
}
.reviewer {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text-soft);
  text-transform: uppercase;
}

/* ── Author ── */
.author-photo-wrap {
  position: relative;
  display: flex;
  justify-content: flex-start;
}
.author-photo {
  width: 100%;
  max-width: 360px;
  border-radius: var(--radius);
  display: block;
  filter: grayscale(100%) contrast(1.05);
  box-shadow: var(--shadow-lg);
}
.author-photo-placeholder {
  width: 100%;
  max-width: 360px;
  height: 440px;
  background: linear-gradient(145deg, var(--slate), var(--bg));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}
.author-initials {
  font-family: var(--font-serif);
  font-size: 5rem;
  font-weight: 700;
  color: var(--blue-light);
  opacity: 0.3;
}
.author-frame-accent {
  position: absolute;
  bottom: -12px;
  right: -12px;
  width: 80%;
  height: 80%;
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: var(--radius);
  pointer-events: none;
}

/* ── Buy ── */
.buy-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 40px 0 16px;
}
.buy-note {
  font-size: 0.78rem;
  color: var(--text-soft);
  margin-top: 16px;
  font-style: italic;
  opacity: 0.6;
}

/* ── Retailer Grid ── */
.retailer-regions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  margin-top: 56px;
}
.retailer-region {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 24px;
  transition: border-color 0.25s;
}
.retailer-region:hover { border-color: rgba(201,168,76,0.25); }
.region-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.retailer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}
.retailer-btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 16px;
  background: var(--bg-mid);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: all 0.22s;
  line-height: 1.3;
}
.retailer-btn span {
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--text-soft);
  letter-spacing: 0.06em;
  margin-top: 2px;
}
.retailer-btn:hover {
  background: var(--slate);
  border-color: var(--gold);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.retailer-btn:hover span { color: var(--gold); }

/* ── Newsletter ── */
.newsletter-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.newsletter-form input {
  flex: 1;
  min-width: 200px;
  padding: 14px 20px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg-card);
  outline: none;
  transition: border-color 0.2s;
}
.newsletter-form input:focus { border-color: var(--gold); }
.newsletter-form input::placeholder { color: var(--text-soft); }
.form-success {
  margin-top: 20px;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--gold);
}

/* ── Footer ── */
#footer {
  background: #040508;
  padding: 56px 24px 40px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--white);
  opacity: 0.8;
}
.footer-sub { font-size: 0.75rem; color: var(--text-soft); margin-top: 4px; letter-spacing: 0.1em; }
.footer-nav { display: flex; gap: 28px; flex-wrap: wrap; }
.footer-nav a {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-soft);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--gold); }
.footer-copy {
  font-size: 0.72rem;
  color: var(--text-soft);
  opacity: 0.45;
  width: 100%;
  text-align: center;
  margin-top: 12px;
}

/* ── Animations ── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}
.fade-in.visible { opacity: 1; transform: none; }

/* ── Responsive ── */
@media (max-width: 900px) {
  #hero { grid-template-columns: 1fr; padding-top: 120px; }
  .hero-cover-wrap { display: none; }
  .two-col { grid-template-columns: 1fr; gap: 48px; }
  .two-col.reverse { direction: ltr; }
  .author-photo-wrap { justify-content: center; }
}
@media (max-width: 640px) {
  :root { --section-pad: 80px 20px; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: rgba(7,9,15,0.98); padding: 20px 24px 28px; gap: 18px; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero-buttons, .buy-buttons { flex-direction: column; align-items: flex-start; }
  .buy-buttons { align-items: center; }
  .footer-inner { justify-content: center; text-align: center; }
  .footer-nav { justify-content: center; }
}