/* ============================================================
   style.css — Site Dr Dan Jager
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --gold:        #c9a84c;
  --gold-light:  #e8d08a;
  --dark:        #0f0e0c;
  --dark-2:      #1a1814;
  --dark-3:      #252320;
  --dark-4:      #302e2a;
  --text:        #e8e4da;
  --text-muted:  #9a9080;
  --text-faint:  #5a5448;
  --white:       #ffffff;
  --radius:      6px;
  --radius-lg:   12px;
  --shadow:      0 4px 24px rgba(0,0,0,.5);
  --transition:  .25s ease;
  --font-serif:  'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans:   'Inter', 'Helvetica Neue', Arial, sans-serif;
  --nav-h:       70px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--dark);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  min-height: 100vh;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
p  { font-size: 1rem; color: var(--text-muted); }

/* ---------- Layout ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 80px 0; }
.section-title {
  text-align: center;
  margin-bottom: 56px;
}
.section-title h2 { color: var(--text); }
.section-title .line {
  display: block; width: 60px; height: 2px;
  background: var(--gold); margin: 16px auto 0;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  background: rgba(15,14,12,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201,168,76,.15);
  display: flex; align-items: center;
  transition: box-shadow var(--transition);
}
.nav.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.5); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px;
}
.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--gold);
  letter-spacing: .03em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.nav-logo-mark {
  height: 42px; width: 42px;
  object-fit: contain;
  display: block;
}
.nav-logo span { color: var(--text-muted); font-size: .8rem; display: block; font-family: var(--font-sans); letter-spacing: .1em; text-transform: uppercase; }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  font-size: .88rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--text-muted); transition: color var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--gold); }
.lang-switcher { display: flex; gap: 8px; align-items: center; }
.lang-btn {
  font-size: .78rem; font-weight: 600; letter-spacing: .08em;
  color: var(--text-faint); padding: 4px 8px; border-radius: var(--radius);
  transition: all var(--transition); text-transform: uppercase;
}
.lang-btn.active, .lang-btn:hover { color: var(--gold); background: rgba(201,168,76,.1); }
.nav-menu-btn {
  display: none; flex-direction: column; gap: 5px;
  width: 28px; padding: 4px 0;
}
.nav-menu-btn span {
  display: block; height: 2px; background: var(--text);
  transition: all var(--transition); border-radius: 2px;
}

/* ---------- Mobile menu ---------- */
.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 999;
  background: var(--dark-2); padding: var(--nav-h) 24px 40px;
  flex-direction: column; gap: 32px; overflow-y: auto;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: var(--font-serif); font-size: 1.5rem;
  color: var(--text); border-bottom: 1px solid var(--dark-3); padding-bottom: 16px;
}
.mobile-menu a:hover { color: var(--gold); }
.mobile-lang { display: flex; gap: 16px; margin-top: 8px; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  padding-top: var(--nav-h);
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 75% 60% at 50% 46%, rgba(15,14,12,.3) 0%, rgba(15,14,12,.62) 100%),
    linear-gradient(180deg, rgba(15,14,12,.88) 0%, rgba(15,14,12,.4) 30%, rgba(15,14,12,.5) 58%, rgba(15,14,12,.92) 100%),
    url("../assets/hero_site_dan.png") center 42% / cover no-repeat;
  background-color: var(--dark);
}
.hero-bg-pattern {
  position: absolute; inset: 0; opacity: .03;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c9a84c' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-content {
  position: relative; z-index: 1;
  text-align: center; max-width: 780px;
  padding: 40px 24px;
  text-shadow: 0 2px 24px rgba(0,0,0,.65);
}
.hero-eyebrow {
  font-size: .78rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 20px;
}
.hero-content h1 { color: var(--white); margin-bottom: 12px; }
.hero-content h1 em { color: var(--gold); font-style: normal; }
.hero-tagline {
  font-size: 1.05rem; color: var(--text-muted);
  max-width: 560px; margin: 20px auto 40px;
  font-style: italic; line-height: 1.8;
}
.hero-stats {
  display: flex; gap: 40px; justify-content: center;
  margin-bottom: 48px;
}
.hero-stat { text-align: center; }
.hero-stat strong {
  display: block; font-family: var(--font-serif);
  font-size: 2rem; color: var(--gold); line-height: 1;
}
.hero-stat span { font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-faint); }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: var(--radius);
  font-size: .9rem; font-weight: 600; letter-spacing: .04em;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--gold); color: var(--dark);
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(201,168,76,.3); }
.btn-outline {
  border: 1px solid rgba(201,168,76,.4); color: var(--gold);
}
.btn-outline:hover { border-color: var(--gold); background: rgba(201,168,76,.08); }
.btn-sm { padding: 8px 18px; font-size: .82rem; }
.btn-amazon {
  background: #ff9900; color: #111;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-amazon:hover { background: #ffad30; transform: translateY(-1px); }
.btn-soon {
  background: var(--dark-4); color: var(--text-faint);
  cursor: default; font-size: .82rem;
}

/* ============================================================
   FEATURED STRIP
   ============================================================ */
.featured-strip { background: var(--dark-2); padding: 48px 0; }
.featured-strip h2 { font-size: 1rem; text-transform: uppercase; letter-spacing: .15em; color: var(--text-faint); margin-bottom: 32px; text-align: center; }

/* ============================================================
   CATALOGUE
   ============================================================ */
.catalogue-controls {
  display: flex; flex-wrap: wrap; gap: 16px;
  align-items: center; justify-content: space-between;
  margin-bottom: 40px;
}
.filter-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-btn {
  padding: 7px 18px; border-radius: 999px;
  font-size: .82rem; letter-spacing: .05em;
  border: 1px solid var(--dark-4); color: var(--text-muted);
  transition: all var(--transition);
}
.filter-btn.active, .filter-btn:hover {
  border-color: var(--gold); color: var(--gold); background: rgba(201,168,76,.08);
}
.search-box {
  display: flex; align-items: center; gap: 10px;
  background: var(--dark-3); border: 1px solid var(--dark-4);
  border-radius: var(--radius); padding: 8px 16px;
  transition: border-color var(--transition);
}
.search-box:focus-within { border-color: var(--gold); }
.search-box input {
  background: none; border: none; outline: none;
  color: var(--text); font-size: .9rem; width: 200px;
}
.search-box input::placeholder { color: var(--text-faint); }
.search-box svg { color: var(--text-faint); flex-shrink: 0; }

/* -------- Book Grid -------- */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 32px;
}
.book-card {
  background: var(--dark-2);
  border: 1px solid var(--dark-3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  cursor: pointer;
  display: flex; flex-direction: column;
}
.book-card:hover {
  border-color: rgba(201,168,76,.35);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,.4);
}
.book-cover {
  aspect-ratio: 2/3; overflow: hidden;
  position: relative; background: var(--dark-3);
}
.book-cover img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.book-card:hover .book-cover img { transform: scale(1.04); }
.book-cover-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(15,14,12,.9) 0%, transparent 50%);
  opacity: 0; transition: opacity var(--transition);
  display: flex; align-items: flex-end; padding: 16px;
}
.book-card:hover .book-cover-overlay { opacity: 1; }
.book-cover-overlay .btn { font-size: .78rem; padding: 7px 14px; }
.book-info { padding: 16px; flex: 1; display: flex; flex-direction: column; }
.book-genre {
  font-size: .72rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--gold); margin-bottom: 6px; line-height: 1.3;
}
.book-title {
  font-family: var(--font-serif); font-size: 1rem;
  color: var(--text); line-height: 1.35; margin-bottom: 4px;
}
.book-subtitle {
  font-size: .78rem; color: var(--text-faint);
  font-style: italic; margin-bottom: 12px; line-height: 1.4;
}
.book-card .btn-amazon, .book-card .btn-soon {
  margin-top: auto; width: 100%; justify-content: center;
  padding: 9px; font-size: .8rem;
}

/* ============================================================
   BOOK MODAL
   ============================================================ */
.modal-overlay {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(10,9,8,.85); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; opacity: 0; pointer-events: none;
  transition: opacity .3s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--dark-2); border: 1px solid var(--dark-4);
  border-radius: var(--radius-lg); max-width: 860px; width: 100%;
  max-height: 90vh; overflow-y: auto;
  transform: translateY(20px); transition: transform .3s ease;
  position: relative;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-inner {
  display: grid; grid-template-columns: 220px 1fr; gap: 0;
}
.modal-cover {
  position: sticky; top: 0; height: fit-content;
  padding: 32px 0 32px 32px;
}
.modal-cover img {
  width: 100%; border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.modal-body { padding: 32px; }
.modal-genre {
  font-size: .75rem; text-transform: uppercase; letter-spacing: .1em;
  color: var(--gold); margin-bottom: 12px;
}
.modal-title {
  font-family: var(--font-serif); font-size: 1.6rem;
  color: var(--white); margin-bottom: 6px; line-height: 1.25;
}
.modal-subtitle {
  font-size: .9rem; color: var(--text-faint);
  font-style: italic; margin-bottom: 24px;
}
.modal-divider { height: 1px; background: var(--dark-3); margin: 20px 0; }
.modal-section-label {
  font-size: .72rem; text-transform: uppercase; letter-spacing: .12em;
  color: var(--text-faint); margin-bottom: 10px;
}
.modal-summary { font-size: .95rem; color: var(--text-muted); line-height: 1.8; }
.modal-excerpt {
  background: var(--dark-3); border-left: 3px solid var(--gold);
  padding: 16px 20px; border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic; font-size: .95rem; color: var(--text-muted); margin: 20px 0;
}
.modal-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.modal-close {
  position: absolute; top: 20px; right: 20px;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--dark-3); color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition); font-size: 1.2rem;
}
.modal-close:hover { background: var(--dark-4); color: var(--text); }

/* ============================================================
   AUTHOR SECTION
   ============================================================ */
.author-section { background: var(--dark-2); }
.author-inner {
  display: grid; grid-template-columns: 280px 1fr;
  gap: 64px; align-items: start;
}
.author-photo {
  position: relative;
}
.author-photo img {
  width: 100%; border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--dark-3);
  background: radial-gradient(120% 85% at 50% 0%, rgba(201,168,76,.16), rgba(20,18,15,.96));
}
.author-photo-placeholder {
  aspect-ratio: 3/4; background: var(--dark-3);
  border-radius: var(--radius-lg); border: 2px dashed var(--dark-4);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; color: var(--text-faint);
}
.author-photo-placeholder svg { opacity: .4; }
.author-photo-placeholder span { font-size: .8rem; text-align: center; line-height: 1.5; }
.author-eyebrow {
  font-size: .75rem; letter-spacing: .2em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 12px;
}
.author-name {
  font-family: var(--font-serif); font-size: 2rem; color: var(--white); margin-bottom: 24px;
}
.author-bio {
  font-size: .97rem; color: var(--text-muted); line-height: 1.85;
}
.author-bio p + p { margin-top: 16px; }
.author-numbers {
  display: flex; gap: 32px; margin-top: 32px; flex-wrap: wrap;
}
.author-num { text-align: center; }
.author-num strong {
  display: block; font-family: var(--font-serif);
  font-size: 2.2rem; color: var(--gold); line-height: 1;
}
.author-num span { font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-faint); }

/* ============================================================
   PRESS SECTION
   ============================================================ */
.press-section { background: var(--dark); }
.press-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px; margin-top: 40px;
}
.press-card {
  background: var(--dark-2); border: 1px solid var(--dark-3);
  border-radius: var(--radius-lg); padding: 28px;
  transition: border-color var(--transition);
}
.press-card:hover { border-color: rgba(201,168,76,.3); }
.press-card-icon { font-size: 1.8rem; margin-bottom: 16px; }
.press-card h3 { font-family: var(--font-serif); font-size: 1.1rem; color: var(--text); margin-bottom: 8px; }
.press-card p { font-size: .88rem; color: var(--text-faint); line-height: 1.6; }
.press-card .btn { margin-top: 20px; }

/* ============================================================
   NEWSLETTER
   ============================================================ */
.newsletter-section {
  background: linear-gradient(135deg, var(--dark-2) 0%, var(--dark) 100%);
  border-top: 1px solid rgba(201,168,76,.1);
  border-bottom: 1px solid rgba(201,168,76,.1);
  padding: 64px 0; text-align: center;
}
.newsletter-section h2 { color: var(--text); margin-bottom: 12px; }
.newsletter-section p { max-width: 480px; margin: 0 auto 32px; font-size: .95rem; }
.newsletter-form {
  display: flex; gap: 12px; justify-content: center;
  flex-wrap: wrap; max-width: 480px; margin: 0 auto;
}
.newsletter-form input {
  flex: 1; min-width: 220px;
  background: var(--dark-3); border: 1px solid var(--dark-4);
  border-radius: var(--radius); padding: 12px 18px;
  color: var(--text); font-size: .9rem; outline: none;
  transition: border-color var(--transition);
}
.newsletter-form input:focus { border-color: var(--gold); }
.newsletter-form input::placeholder { color: var(--text-faint); }
.newsletter-note { font-size: .75rem; color: var(--text-faint); margin-top: 12px; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--dark-2);
  border-top: 1px solid var(--dark-3);
  padding: 48px 0 32px;
}
.footer-inner {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px; margin-bottom: 40px;
}
.footer-brand h3 {
  font-family: var(--font-serif); font-size: 1.3rem;
  color: var(--gold); margin-bottom: 8px;
}
.footer-brand p { font-size: .85rem; line-height: 1.7; }
.footer-col h4 {
  font-size: .75rem; text-transform: uppercase; letter-spacing: .12em;
  color: var(--text-faint); margin-bottom: 16px;
}
.footer-col a {
  display: block; font-size: .88rem; color: var(--text-muted);
  margin-bottom: 10px; transition: color var(--transition);
}
.footer-col a:hover { color: var(--gold); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  border-top: 1px solid var(--dark-3); padding-top: 24px;
}
.footer-bottom p { font-size: .8rem; color: var(--text-faint); }
.footer-langs { display: flex; gap: 8px; }

/* ============================================================
   PAGE HEADER
   ============================================================ */
.page-header {
  padding: calc(var(--nav-h) + 60px) 0 60px;
  background: linear-gradient(180deg, var(--dark-2) 0%, var(--dark) 100%);
  text-align: center; border-bottom: 1px solid var(--dark-3);
}
.page-header h1 { color: var(--white); margin-bottom: 12px; }
.page-header p { max-width: 560px; margin: 0 auto; font-size: 1rem; }

/* ============================================================
   UTILITIES
   ============================================================ */
.hidden { display: none !important; }
.gold { color: var(--gold); }
.text-center { text-align: center; }
.mt-auto { margin-top: auto; }
[data-lang] { display: none; }
[data-lang].active { display: block; }
span[data-lang].active { display: inline; }

/* ============================================================
   SCROLL-TO-TOP
   ============================================================ */
.scroll-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 500;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(201,168,76,.9); color: var(--dark);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
  opacity: 0; pointer-events: none; transition: opacity var(--transition);
  font-size: 1.1rem;
}
.scroll-top.visible { opacity: 1; pointer-events: all; }
.scroll-top:hover { background: var(--gold-light); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-menu-btn { display: flex; }
  .author-inner { grid-template-columns: 1fr; }
  .author-photo { max-width: 280px; margin: 0 auto; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .modal-inner { grid-template-columns: 1fr; }
  .modal-cover { padding: 24px 24px 0; position: static; }
  .modal-cover img { max-width: 180px; }
}
@media (max-width: 600px) {
  .hero-stats { gap: 24px; }
  .books-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; }
  .footer-inner { grid-template-columns: 1fr; }
  .catalogue-controls { flex-direction: column; align-items: flex-start; }
  .search-box input { width: 140px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .modal-actions { flex-direction: column; }
  .modal-actions .btn { width: 100%; justify-content: center; }
}