/* ═══════════════════════════════════════════
   BLACKTREE PRESS — Main Stylesheet
   Gothic-editorial aesthetic
   ═══════════════════════════════════════════ */

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

:root {
  --ink:              #0d0b08;
  --ink-mid:          #151210;
  --ink-soft:         #1a1712;
  --parchment:        #f5f0e8;
  --mist:             #e0d8cc;
  --ash:              #3a3530;
  --gold:             #c9a84c;
  --gold-dim:         #8a6e2f;
  --gold-faint:       rgba(201,168,76,0.12);

  --detective:        #1e1508;
  --detective-accent: #c9a84c;
  --cyber:            #071318;
  --cyber-accent:     #4ecdc4;
  --maker:            #081208;
  --maker-accent:     #7ec850;

  --font-display: 'Playfair Display', serif;
  --font-mono:    'DM Mono', monospace;
  --font-body:    'Lato', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--parchment);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 3px; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ── UTILITY ── */
.section-inner { max-width: 1100px; margin: 0 auto; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.7;
  margin-bottom: 0.9rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  font-weight: 600;
  line-height: 1.15;
  color: var(--parchment);
  margin-bottom: 0.9rem;
}
.section-title em { font-style: italic; color: var(--gold); }

.section-rule {
  width: 40px;
  height: 1px;
  background: var(--gold);
  opacity: 0.4;
  margin-bottom: 3.5rem;
}

.ornament {
  text-align: center;
  font-family: var(--font-display);
  color: var(--gold);
  opacity: 0.25;
  font-size: 0.9rem;
  letter-spacing: 0.6em;
  padding: 0.5rem 0;
}

/* ── REVEAL ANIMATION ── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; opacity: 1; transform: none; }
}

/* ══════════════════════════════════════
   NAV
══════════════════════════════════════ */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 4rem;
  background: rgba(13,11,8,0.93);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(201,168,76,0.12);
  transition: padding 0.3s ease;
}
#nav.scrolled { padding: 0.8rem 4rem; }

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  color: var(--gold);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
  opacity: 0.65;
  transition: opacity 0.2s, color 0.2s;
}
.nav-links a:hover { opacity: 1; color: var(--gold); }

/* ══════════════════════════════════════
   HERO
══════════════════════════════════════ */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 8rem 2rem 6rem;
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 65% 55% at 50% 38%, rgba(201,168,76,0.07) 0%, transparent 70%),
    radial-gradient(ellipse 90% 60% at 15% 85%, rgba(201,168,76,0.03) 0%, transparent 60%);
  pointer-events: none;
}
#hero::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 80px,
    rgba(201,168,76,0.013) 80px, rgba(201,168,76,0.013) 81px
  );
  pointer-events: none;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.75;
  margin-bottom: 2rem;
  position: relative; z-index: 1;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.8rem, 10vw, 8rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--parchment);
  margin-bottom: 0.5rem;
  position: relative; z-index: 1;
}
.hero-title span { color: var(--gold); font-style: italic; }

.hero-rule {
  width: 55px; height: 1px;
  background: var(--gold);
  margin: 2.2rem auto;
  opacity: 0.55;
  position: relative; z-index: 1;
}

.hero-sub {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1rem, 2.4vw, 1.3rem);
  color: var(--mist);
  opacity: 0.65;
  max-width: 500px;
  line-height: 1.65;
  margin-bottom: 3rem;
  position: relative; z-index: 1;
}

.hero-tags {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  flex-wrap: wrap;
  position: relative; z-index: 1;
}

.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.45rem 1.1rem;
  border: 1px solid rgba(201,168,76,0.28);
  color: var(--gold);
  opacity: 0.7;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.3;
  animation: scrollHint 2.8s ease-in-out infinite;
}
.hero-scroll-hint span {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.hero-scroll-line {
  width: 1px; height: 38px;
  background: linear-gradient(to bottom, var(--gold), transparent);
}
@keyframes scrollHint {
  0%,100% { opacity: 0.3; transform: translateX(-50%) translateY(0); }
  50%      { opacity: 0.55; transform: translateX(-50%) translateY(7px); }
}

/* ══════════════════════════════════════
   GENRE PANELS  (#genres)
══════════════════════════════════════ */
#genres { padding: 7rem 0; background: var(--ink-soft); }
#genres .section-inner { padding: 0 2rem; }

.genre-panels {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 3.5rem;
  border: 1px solid rgba(201,168,76,0.1);
  overflow: hidden;
}

.genre-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 360px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(201,168,76,0.08);
  transition: min-height 0.3s;
}
.genre-panel:last-child { border-bottom: none; }

/* Alternate image side */
.genre-panel:nth-child(even) { direction: rtl; }
.genre-panel:nth-child(even) > * { direction: ltr; }

.genre-panel-img {
  position: relative;
  overflow: hidden;
}
.genre-panel-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: brightness(0.55) saturate(0.7);
  transition: filter 0.5s, transform 0.5s;
}
.genre-panel:hover .genre-panel-img img {
  filter: brightness(0.7) saturate(0.85);
  transform: scale(1.03);
}

.genre-panel-img::after {
  content: '';
  position: absolute; inset: 0;
  pointer-events: none;
}
.genre-detective .genre-panel-img::after {
  background: linear-gradient(to right, rgba(30,21,8,0.6), transparent);
}
.genre-cyber .genre-panel-img::after {
  background: linear-gradient(to left, rgba(7,19,24,0.6), transparent);
}
.genre-maker .genre-panel-img::after {
  background: linear-gradient(to right, rgba(8,18,8,0.6), transparent);
}

.genre-panel-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3.5rem 4rem;
}
.genre-detective .genre-panel-body { background: var(--detective); }
.genre-cyber     .genre-panel-body { background: var(--cyber); }
.genre-maker     .genre-panel-body { background: var(--maker); }

.genre-panel-num {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  opacity: 0.5;
}
.genre-detective .genre-panel-num { color: var(--detective-accent); }
.genre-cyber     .genre-panel-num { color: var(--cyber-accent); }
.genre-maker     .genre-panel-num { color: var(--maker-accent); }

.genre-panel-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  line-height: 1.15;
  color: var(--parchment);
  margin-bottom: 1rem;
}

.genre-panel-desc {
  font-size: 0.88rem;
  color: var(--mist);
  opacity: 0.62;
  line-height: 1.75;
  max-width: 380px;
}

.genre-panel-accent {
  display: block;
  width: 32px; height: 2px;
  margin-bottom: 1.4rem;
}
.genre-detective .genre-panel-accent { background: var(--detective-accent); }
.genre-cyber     .genre-panel-accent { background: var(--cyber-accent); }
.genre-maker     .genre-panel-accent { background: var(--maker-accent); }

/* ══════════════════════════════════════
   CATALOGUE  (#catalogue)
══════════════════════════════════════ */
#catalogue { padding: 7rem 2rem; background: var(--ink); }

/* ── Series block ── */
.series-block { margin-bottom: 5rem; }
.series-block:last-child { margin-bottom: 0; }

.series-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid rgba(201,168,76,0.08);
}
.series-header-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  white-space: nowrap;
}
.series-block-detective .series-header-label { color: var(--detective-accent); }
.series-block-cyber     .series-header-label { color: var(--cyber-accent); }
.series-block-maker     .series-header-label { color: var(--maker-accent); }

.series-header-line {
  flex: 1; height: 1px;
  opacity: 0.2;
}
.series-block-detective .series-header-line { background: var(--detective-accent); }
.series-block-cyber     .series-header-line { background: var(--cyber-accent); }
.series-block-maker     .series-header-line { background: var(--maker-accent); }

/* ── Book grid ── */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.8rem;
}

/* Single book — no side-by-side with unrelated category */
.books-grid.single { grid-template-columns: minmax(260px, 380px); }

/* ── Book card ── */
.book-card {
  border: 1px solid rgba(201,168,76,0.1);
  background: rgba(255,255,255,0.016);
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
  display: flex;
  flex-direction: column;
}
.book-card:hover {
  border-color: rgba(201,168,76,0.32);
  transform: translateY(-5px);
}

.book-cover-wrap {
  overflow: hidden;
  aspect-ratio: 2 / 3;
  flex-shrink: 0;
}
.book-cover-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.5s ease, filter 0.4s ease;
  filter: brightness(0.95);
}
.book-card:hover .book-cover-wrap img {
  transform: scale(1.04);
  filter: brightness(1.05);
}

.book-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.book-tag {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.book-card-detective .book-tag { color: var(--detective-accent); }
.book-card-cyber     .book-tag { color: var(--cyber-accent); }
.book-card-maker     .book-tag { color: var(--maker-accent); }

.book-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--parchment);
  line-height: 1.25;
  margin-bottom: 0.3rem;
}
.book-subtitle {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.78rem;
  color: var(--mist);
  opacity: 0.5;
  margin-bottom: 1rem;
}
.book-desc {
  font-size: 0.82rem;
  color: var(--mist);
  opacity: 0.58;
  line-height: 1.68;
  margin-bottom: 1.4rem;
  flex: 1;
}

.book-footer {
  padding-top: 1rem;
  border-top: 1px solid rgba(201,168,76,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.1rem;
}
.book-price {
  font-family: var(--font-mono);
  font-size: 1rem;
}
.book-card-detective .book-price { color: var(--detective-accent); }
.book-card-cyber     .book-price { color: var(--cyber-accent); }
.book-card-maker     .book-price { color: var(--maker-accent); }

.book-badge {
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.22rem 0.6rem;
}
.badge-free     { background: rgba(78,205,196,0.12); color: var(--cyber-accent);     border: 1px solid rgba(78,205,196,0.28); }
.badge-full     { background: rgba(201,168,76,0.1);  color: var(--detective-accent); border: 1px solid rgba(201,168,76,0.25); }
.badge-story2   { background: rgba(78,205,196,0.08); color: var(--cyber-accent);     border: 1px solid rgba(78,205,196,0.2); }
.badge-guide    { background: rgba(126,200,80,0.1);  color: var(--maker-accent);     border: 1px solid rgba(126,200,80,0.25); }

.btn-play {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.75rem 1rem;
  border: 1px solid;
  transition: background 0.22s, color 0.22s;
}
.book-card-detective .btn-play { color: var(--detective-accent); border-color: rgba(201,168,76,0.32); }
.book-card-detective .btn-play:hover { background: var(--detective-accent); color: var(--ink); }
.book-card-cyber     .btn-play { color: var(--cyber-accent);     border-color: rgba(78,205,196,0.28); }
.book-card-cyber     .btn-play:hover { background: var(--cyber-accent);     color: var(--ink); }
.book-card-maker     .btn-play { color: var(--maker-accent);     border-color: rgba(126,200,80,0.28); }
.book-card-maker     .btn-play:hover { background: var(--maker-accent);     color: var(--ink); }

/* ══════════════════════════════════════
   ABOUT  (#about)
══════════════════════════════════════ */
#about { padding: 7rem 2rem; background: var(--ink-soft); }

.about-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 5rem;
  align-items: start;
  margin-top: 3.5rem;
}

.about-photo-wrap {
  position: relative;
}
.about-photo-wrap::before {
  content: '';
  position: absolute;
  top: 12px; left: 12px;
  right: -12px; bottom: -12px;
  border: 1px solid rgba(201,168,76,0.18);
  pointer-events: none;
}
.about-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(15%);
  border: 1px solid rgba(201,168,76,0.2);
  display: block;
}

.about-name {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 600;
  color: var(--parchment);
  margin: 2rem 0 0.3rem;
}
.about-role {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.65;
  margin-bottom: 1.8rem;
}

.about-social {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.about-social a {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  color: var(--mist);
  opacity: 0.45;
  letter-spacing: 0.04em;
  transition: opacity 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.about-social a:hover { opacity: 1; color: var(--gold); }

.about-text p {
  font-size: 0.95rem;
  color: var(--mist);
  opacity: 0.7;
  line-height: 1.85;
  margin-bottom: 1.3rem;
}
.about-text p:first-child {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  opacity: 0.85;
  line-height: 1.6;
}

.about-tags {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(201,168,76,0.1);
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}
.about-tag {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.28rem 0.7rem;
  border: 1px solid rgba(201,168,76,0.18);
  color: var(--gold);
  opacity: 0.55;
}

/* ══════════════════════════════════════
   CONTACT  (#contact)
══════════════════════════════════════ */
#contact { padding: 7rem 2rem; background: var(--ink); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 5rem;
  align-items: start;
  margin-top: 3.5rem;
}

.contact-info p {
  font-size: 0.9rem;
  color: var(--mist);
  opacity: 0.58;
  line-height: 1.8;
  margin-bottom: 1.1rem;
}
.contact-email {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold);
  opacity: 0.65;
  letter-spacing: 0.04em;
  display: block;
  margin-top: 1.5rem;
}

.contact-form { display: flex; flex-direction: column; gap: 1.2rem; }

.form-field { display: flex; flex-direction: column; gap: 0.4rem; }
.form-field label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  opacity: 0.6;
}
.form-field input,
.form-field textarea {
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(201,168,76,0.14);
  color: var(--parchment);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 300;
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color 0.2s;
  resize: vertical;
}
.form-field input:focus,
.form-field textarea:focus { border-color: rgba(201,168,76,0.42); }
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--mist); opacity: 0.22; }
.form-field textarea { min-height: 128px; }

.btn-submit {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.95rem 2rem;
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold);
  cursor: pointer;
  transition: background 0.22s, color 0.22s;
  align-self: flex-start;
}
.btn-submit:hover { background: var(--gold); color: var(--ink); }
.btn-submit:disabled { opacity: 0.4; cursor: default; }

.form-success {
  display: none;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--gold);
  opacity: 0.8;
  padding: 1.2rem;
  border: 1px solid rgba(201,168,76,0.2);
  text-align: center;
  line-height: 1.5;
}

/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */
footer {
  border-top: 1px solid rgba(201,168,76,0.1);
  padding: 2.5rem 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.2rem;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.06em;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--mist);
  opacity: 0.3;
  text-align: right;
  line-height: 1.8;
}
.footer-copy a { opacity: 0.7; transition: opacity 0.2s; }
.footer-copy a:hover { opacity: 1; }

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media (max-width: 900px) {
  #nav { padding: 1rem 1.8rem; }
  #nav.scrolled { padding: 0.7rem 1.8rem; }

  .genre-panel { grid-template-columns: 1fr; min-height: auto; }
  .genre-panel:nth-child(even) { direction: ltr; }
  .genre-panel-img { aspect-ratio: 16/7; }
  .genre-detective .genre-panel-img::after,
  .genre-cyber     .genre-panel-img::after,
  .genre-maker     .genre-panel-img::after {
    background: linear-gradient(to top, rgba(0,0,0,0.5), transparent);
  }
  .genre-panel-body { padding: 2.5rem 2rem; }

  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-photo-wrap { max-width: 280px; }

  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }

  footer { padding: 2rem 1.8rem; }
  .footer-copy { text-align: left; }
}

@media (max-width: 600px) {
  .nav-links { display: none; }
  .books-grid { grid-template-columns: 1fr; }
  .books-grid.single { grid-template-columns: 1fr; }
  .hero-tags { gap: 0.6rem; }
}