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

:root {
  --ink: #0a0a0f;
  --parchment: #f5f0e8;
  --amber: #c8956c;
  --amber-light: #e8c4a0;
  --amber-dim: rgba(200,149,108,0.15);
  --warm-white: #faf8f4;
  --slate: #3a3a4a;
  --muted: #7a7a8a;
  --border: rgba(200,149,108,0.18);
  --radius: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--ink);
  color: var(--parchment);
  line-height: 1.65;
  overflow-x: hidden;
}

/* Grain texture */
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 1000;
  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)' opacity='0.03'/%3E%3C/svg%3E");
}

/* ── Layout ──────────────────────────────────────────────────────────────────── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── Typography ─────────────────────────────────────────────────────────────── */
h1, h2, h3, .logo, .hero-name { font-family: 'Syne', 'DM Sans', sans-serif; }

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius);
  font-family: 'DM Sans', sans-serif; font-size: 0.9rem; font-weight: 500;
  text-decoration: none; cursor: pointer; border: none; transition: all 0.2s;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--amber); color: var(--ink);
}
.btn-primary:hover { background: var(--amber-light); transform: translateY(-1px); }

.btn-ghost {
  background: transparent; color: var(--parchment);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); transform: translateY(-1px); }

.btn-sm { padding: 9px 18px; font-size: 0.85rem; }

.btn-danger { background: #c0392b; color: #fff; }
.btn-danger:hover { background: #e74c3c; }

/* ── Navigation ──────────────────────────────────────────────────────────────── */
.site-header {
  padding: 28px 0;
  border-bottom: 1px solid transparent;
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,10,15,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header nav { display: flex; justify-content: space-between; align-items: center; }

.logo {
  font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.2rem;
  letter-spacing: -0.5px; color: var(--amber); text-decoration: none;
}
.logo:hover { color: var(--amber-light); }

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  text-decoration: none; color: var(--muted); font-size: 0.9rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--parchment); }
.nav-cta {
  color: var(--amber) !important;
  border: 1px solid var(--border);
  padding: 8px 16px; border-radius: var(--radius);
}
.nav-cta:hover { border-color: var(--amber) !important; background: var(--amber-dim); }

/* ── Hero ────────────────────────────────────────────────────────────────────── */
.hero {
  padding: 100px 0 80px;
  background: radial-gradient(ellipse at 70% 50%, rgba(200,149,108,0.06) 0%, transparent 70%);
}
.hero-inner {
  display: grid; grid-template-columns: 1fr 360px;
  gap: 60px; align-items: center;
}
.hero-eyebrow {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 3px;
  color: var(--amber); margin-bottom: 16px;
}
.hero-name {
  font-size: clamp(3rem, 6vw, 5rem); font-weight: 800;
  line-height: 1.05; letter-spacing: -2px;
  color: var(--warm-white); margin-bottom: 20px;
}
.hero-tagline {
  font-size: 1.2rem; color: var(--muted); margin-bottom: 36px;
  font-style: italic; max-width: 480px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-photo {
  aspect-ratio: 3/4; border-radius: 8px; overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.hero-photo--placeholder {
  background: var(--slate);
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1a1a2a, #2a2a3a);
}
.photo-monogram {
  font-family: 'Syne', sans-serif; font-weight: 800;
  font-size: 5rem; color: var(--amber); opacity: 0.4;
  letter-spacing: -3px;
}

/* ── Flash ───────────────────────────────────────────────────────────────────── */
.flash { padding: 14px 0; font-size: 0.9rem; text-align: center; }
.flash--success { background: rgba(200,149,108,0.15); color: var(--amber); border-bottom: 1px solid var(--border); }
.flash--info { background: rgba(58,58,74,0.5); color: var(--muted); border-bottom: 1px solid var(--border); }

/* ── Section Headers ─────────────────────────────────────────────────────────── */
.section-eyebrow {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 3px;
  color: var(--amber); margin-bottom: 12px;
}
.section-header { text-align: center; margin-bottom: 56px; }
.section-header--left { text-align: left; }
.section-title {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800;
  letter-spacing: -1px; color: var(--warm-white);
}

/* ── Books Section ───────────────────────────────────────────────────────────── */
.books-section { padding: 100px 0; border-top: 1px solid var(--border); }
.books-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 36px; }

.book-card {
  background: rgba(255,255,255,0.03); border: 1px solid var(--border);
  border-radius: 10px; overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.book-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.book-cover { position: relative; aspect-ratio: 2/3; overflow: hidden; }
.book-cover img { width: 100%; height: 100%; object-fit: cover; }
.book-cover-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(160deg, #1a1525 0%, #2d2040 50%, #1a1525 100%);
  display: flex; align-items: center; justify-content: center; padding: 24px;
}
.book-cover-title {
  font-family: 'Syne', sans-serif; font-weight: 800;
  font-size: clamp(1rem, 2.5vw, 1.4rem); color: var(--amber-light);
  text-align: center; line-height: 1.2; letter-spacing: -0.5px;
}

.book-status {
  position: absolute; top: 12px; right: 12px;
  font-size: 0.65rem; text-transform: uppercase; letter-spacing: 1.5px;
  padding: 4px 10px; border-radius: 20px; font-weight: 600;
}
.book-status--coming_soon { background: rgba(200,149,108,0.2); color: var(--amber); border: 1px solid rgba(200,149,108,0.3); }
.book-status--available { background: rgba(46,125,50,0.25); color: #81c784; border: 1px solid rgba(46,125,50,0.3); }
.book-status--pre_order { background: rgba(21,101,192,0.25); color: #90caf9; border: 1px solid rgba(21,101,192,0.3); }

.book-info { padding: 24px; }
.book-genre { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 2px; color: var(--muted); margin-bottom: 8px; }
.book-title { font-size: 1.25rem; font-weight: 700; color: var(--warm-white); margin-bottom: 10px; line-height: 1.2; }
.book-tagline { font-size: 0.9rem; color: var(--amber-light); margin-bottom: 12px; font-style: italic; }
.book-desc { font-size: 0.875rem; color: var(--muted); line-height: 1.6; margin-bottom: 18px; }

.empty-state { color: var(--muted); text-align: center; padding: 60px; }

/* ── About Section ───────────────────────────────────────────────────────────── */
.about-section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
  background: radial-gradient(ellipse at 30% 50%, rgba(200,149,108,0.04) 0%, transparent 70%);
}
.about-inner { display: grid; grid-template-columns: 280px 1fr; gap: 80px; align-items: start; }
.about-body { font-size: 1.05rem; color: var(--parchment); line-height: 1.8; }
.about-body p { margin-bottom: 20px; }

.social-links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 32px; }
.social-link {
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1.5px;
  color: var(--amber); text-decoration: none; border-bottom: 1px solid var(--border);
  padding-bottom: 2px; transition: border-color 0.2s;
}
.social-link:hover { border-color: var(--amber); }

/* ── Signup Section ──────────────────────────────────────────────────────────── */
.signup-section {
  padding: 100px 0;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(200,149,108,0.04));
}
.signup-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.signup-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem); font-weight: 800;
  letter-spacing: -1px; color: var(--warm-white); line-height: 1.1; margin-bottom: 16px;
}
.signup-sub { font-size: 1rem; color: var(--muted); }

.signup-form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: flex; flex-direction: column; }
.form-row--split { flex-direction: row; gap: 12px; }
.form-input {
  padding: 14px 16px; border-radius: var(--radius);
  background: rgba(255,255,255,0.05); border: 1px solid var(--border);
  color: var(--parchment); font-family: 'DM Sans', sans-serif; font-size: 0.95rem;
  outline: none; flex: 1;
  transition: border-color 0.2s;
}
.form-input::placeholder { color: var(--muted); }
.form-input:focus { border-color: var(--amber); }
.form-note { font-size: 0.75rem; color: var(--muted); }

/* ── Footer ──────────────────────────────────────────────────────────────────── */
.site-footer {
  padding: 48px 0; border-top: 1px solid var(--border); text-align: center;
}
.footer-logo {
  font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.1rem;
  color: var(--amber); margin-bottom: 10px;
}
.footer-copy { font-size: 0.8rem; color: var(--muted); }

/* ── Admin Styles ────────────────────────────────────────────────────────────── */
.admin-wrap { min-height: 100vh; display: flex; flex-direction: column; }

.admin-nav {
  background: rgba(10,10,15,0.95); border-bottom: 1px solid var(--border);
  padding: 16px 24px; display: flex; justify-content: space-between; align-items: center;
  position: sticky; top: 0; z-index: 100;
}
.admin-nav-brand { font-family: 'Syne', sans-serif; font-weight: 800; color: var(--amber); font-size: 1rem; }
.admin-nav-brand span { color: var(--muted); font-size: 0.75rem; font-weight: 400; margin-left: 8px; }
.admin-nav-links { display: flex; gap: 20px; align-items: center; }
.admin-nav-links a { color: var(--muted); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.admin-nav-links a:hover { color: var(--parchment); }

.admin-main { flex: 1; padding: 48px 24px; max-width: 960px; margin: 0 auto; width: 100%; }

.admin-section { margin-bottom: 56px; }
.admin-section-title {
  font-family: 'Syne', sans-serif; font-size: 1.1rem; font-weight: 700;
  color: var(--warm-white); margin-bottom: 24px;
  padding-bottom: 12px; border-bottom: 1px solid var(--border);
}

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 40px; }
.stat-card {
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
}
.stat-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 2px; color: var(--muted); margin-bottom: 8px; }
.stat-value { font-family: 'Syne', sans-serif; font-size: 2.2rem; font-weight: 800; color: var(--amber); }

.admin-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); }
.form-control {
  padding: 12px 14px; border-radius: var(--radius);
  background: rgba(255,255,255,0.05); border: 1px solid var(--border);
  color: var(--parchment); font-family: 'DM Sans', sans-serif; font-size: 0.95rem;
  outline: none; transition: border-color 0.2s;
}
.form-control:focus { border-color: var(--amber); }
.form-control[type="textarea"], textarea.form-control {
  resize: vertical; min-height: 120px; line-height: 1.6;
}

.books-admin-list { display: flex; flex-direction: column; gap: 12px; }
.book-admin-row {
  display: flex; align-items: center; gap: 16px;
  background: rgba(255,255,255,0.03); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px;
}
.book-admin-title { flex: 1; font-weight: 500; color: var(--parchment); }
.book-admin-status { font-size: 0.75rem; color: var(--muted); }

.alert { padding: 12px 16px; border-radius: var(--radius); font-size: 0.875rem; margin-bottom: 24px; }
.alert-success { background: rgba(200,149,108,0.12); border: 1px solid rgba(200,149,108,0.3); color: var(--amber); }
.alert-error { background: rgba(192,57,43,0.15); border: 1px solid rgba(192,57,43,0.3); color: #e74c3c; }

.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at 50% 50%, rgba(200,149,108,0.06) 0%, transparent 70%);
}
.login-box {
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  border-radius: 12px; padding: 48px; width: 100%; max-width: 380px;
}
.login-title { font-family: 'Syne', sans-serif; font-size: 1.5rem; font-weight: 800; color: var(--warm-white); margin-bottom: 8px; }
.login-sub { color: var(--muted); font-size: 0.875rem; margin-bottom: 32px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
thead th {
  text-align: left; padding: 10px 14px; font-size: 0.7rem;
  text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted);
  border-bottom: 1px solid var(--border);
}
tbody td { padding: 14px; border-bottom: 1px solid rgba(255,255,255,0.05); color: var(--parchment); }
tbody tr:hover td { background: rgba(255,255,255,0.02); }

/* ── Responsive ──────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-photo { max-width: 280px; margin: 0 auto; }
  .hero-name { font-size: 3rem; }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .signup-inner { grid-template-columns: 1fr; gap: 40px; }
  .form-row--split { flex-direction: column; }
  .nav-links { display: none; }
  .hero { padding: 60px 0 50px; }
  .books-section, .about-section, .signup-section { padding: 70px 0; }
  .admin-main { padding: 24px 16px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}