/* Estetika Sinematik Kediaman Space */
:root {
  --bg-dark: #0c0a08;
  --panel-bg: rgba(18, 15, 12, 0.88);
  --accent-gold: #c49a45;
  --accent-amber: #e6a74b;
  --text-main: #f5eedc;
  --text-muted: #a69888;
  --line-color: rgba(196, 154, 69, 0.25);
  --card-bg: rgba(28, 23, 19, 0.95);
  --font-serif: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  width: 100%;
  height: 100%;
  /* Use dvh (dynamic viewport height) to account for mobile browser chrome */
  height: 100dvh;
}

body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-serif);
  user-select: none;
  /* Prevent all default touch behaviors on body */
  touch-action: none;
}

/* Canvas container: fills body exactly */
#canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  /* NO touch-action here — let canvas handle its own touches */
}

/* Three.js canvas itself */
#canvas-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  /* touch-action: none here ensures pinch/drag work natively */
  touch-action: none;
}

/* Header HUD */
.sp-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 28px;
  padding-top: max(20px, env(safe-area-inset-top, 0px));
  background: linear-gradient(180deg, rgba(12,10,8,0.85) 0%, rgba(12,10,8,0) 100%);
  pointer-events: none;
}

.sp-header * {
  pointer-events: auto;
}

.brand-title {
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  color: var(--text-main);
  text-shadow: 0 2px 8px rgba(0,0,0,0.8);
}

.brand-title span {
  font-style: italic;
  color: var(--accent-gold);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-selector {
  display: flex;
  background: rgba(30, 24, 19, 0.8);
  border: 1px solid var(--line-color);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.lang-btn {
  background: transparent;
  color: var(--text-muted);
  border: none;
  padding: 6px 14px;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.25s ease;
  touch-action: manipulation;
}

.lang-btn.active {
  background: var(--accent-gold);
  color: #1a1309;
}

/* Room Indicator Banner */
.room-indicator {
  position: fixed;
  top: 88px;
  left: 28px;
  z-index: 10;
  pointer-events: none;
  max-width: 420px;
}

.room-eyebrow {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 4px;
}

.room-title {
  font-size: 1.75rem;
  font-weight: normal;
  color: var(--text-main);
  text-shadow: 0 2px 10px rgba(0,0,0,0.9);
}

.room-blurb {
  font-style: italic;
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-shadow: 0 1px 6px rgba(0,0,0,0.8);
}

/* Hovered Book Tooltip HUD */
.book-hover-hud {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -180%);
  z-index: 10;
  background: var(--panel-bg);
  border: 1px solid var(--accent-gold);
  border-radius: 8px;
  padding: 14px 22px;
  text-align: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  box-shadow: 0 10px 30px rgba(0,0,0,0.8), 0 0 20px rgba(196,154,69,0.15);
  max-width: 440px;
}

.book-hover-hud.visible {
  opacity: 1;
  transform: translate(-50%, -160%);
}

.book-hud-title {
  font-size: 1.15rem;
  color: var(--text-main);
  margin-bottom: 4px;
}

.book-hud-meta {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--accent-gold);
  margin-bottom: 6px;
}

.book-hud-hint {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Bottom Control Dock */
.control-dock {
  position: fixed;
  bottom: 20px;
  bottom: max(20px, env(safe-area-inset-bottom, 20px));
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  width: calc(100% - 32px);
  max-width: 640px;
  background: rgba(18, 14, 11, 0.92);
  border: 1px solid var(--line-color);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 8px 12px;
  border-radius: 36px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.8), 0 0 15px rgba(196,154,69,0.08);
  touch-action: manipulation;
}

.dock-center-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: 1;
}

.dock-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(40, 32, 24, 0.6);
  border: 1px solid rgba(196, 154, 69, 0.3);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: 24px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.25s ease;
  touch-action: manipulation;
}

.dock-btn:hover, .dock-btn:active {
  background: rgba(196, 154, 69, 0.2);
  border-color: var(--accent-gold);
}

.dock-btn.active {
  background: var(--accent-gold);
  color: #120e09;
  border-color: var(--accent-gold);
  font-weight: 600;
}

.dock-nav-btn {
  background: rgba(196, 154, 69, 0.15);
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
  touch-action: manipulation;
}

.dock-nav-btn:hover, .dock-nav-btn:active {
  background: rgba(196, 154, 69, 0.4);
}

.dock-divider {
  width: 1px;
  height: 24px;
  background: var(--line-color);
}

.volume-container {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
}

.volume-slider {
  -webkit-appearance: none;
  width: 70px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.15);
  outline: none;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-gold);
  cursor: pointer;
}

/* Floating Zoom Buttons */
.zoom-controls {
  position: fixed;
  right: 16px;
  bottom: 90px;
  z-index: 15;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.zoom-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(22, 17, 13, 0.92);
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  font-size: 1.4rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.6);
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  user-select: none;
  touch-action: manipulation;
}

.zoom-btn:active {
  background: var(--accent-gold);
  color: #120e09;
  transform: scale(0.92);
}

/* Fullscreen Reader Sheet Overlay */
.reader-overlay {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 640px;
  background: rgba(20, 16, 13, 0.97);
  border-left: 1px solid var(--line-color);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 100;
  transform: translateX(100%);
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -20px 0 60px rgba(0,0,0,0.9);
  display: flex;
  flex-direction: column;
}

.reader-overlay.active {
  transform: translateX(0);
}

.reader-header {
  display: flex;
  justify-content: flex-end;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line-color);
  padding-top: max(18px, env(safe-area-inset-top, 18px));
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--accent-gold);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 6px 12px;
  transition: opacity 0.2s ease;
  touch-action: manipulation;
}

.btn-close:hover { opacity: 0.8; }

.reader-scroll {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 36px 42px 72px;
  line-height: 1.8;
  color: #ebe2d3;
}

.reader-scroll::-webkit-scrollbar { width: 6px; }
.reader-scroll::-webkit-scrollbar-thumb {
  background: rgba(196, 154, 69, 0.3);
  border-radius: 3px;
}

.reader-category-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-family: var(--font-sans);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.reader-essay-title {
  font-size: 2rem;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 12px;
  font-weight: normal;
}

.reader-meta {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.reader-excerpt {
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--accent-gold);
  border-left: 3px solid var(--accent-gold);
  padding-left: 18px;
  margin-bottom: 32px;
}

.reader-body p {
  margin-bottom: 1.4em;
  font-size: 1.02rem;
}

.reader-body h3 {
  font-size: 1.25rem;
  color: var(--accent-gold);
  margin: 32px 0 12px;
  font-weight: normal;
}

.reader-body blockquote {
  border-left: 3px solid var(--accent-gold);
  background: rgba(196, 154, 69, 0.08);
  padding: 14px 20px;
  margin: 24px 0;
  font-style: italic;
}

.reader-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line-color);
}

.btn-return {
  background: transparent;
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  padding: 10px 22px;
  border-radius: 6px;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.25s ease;
  touch-action: manipulation;
}

.btn-return:hover { background: var(--accent-gold); color: #120e09; }

/* Catalog Modal */
.catalog-modal {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(10, 8, 6, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 120;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.catalog-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.catalog-window {
  width: 90%;
  max-width: 820px;
  max-height: 85vh;
  background: rgba(22, 18, 14, 0.98);
  border: 1px solid var(--line-color);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0,0,0,0.9);
}

.catalog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 28px;
  border-bottom: 1px solid var(--line-color);
}

.catalog-header h2 {
  font-size: 1.35rem;
  color: var(--accent-gold);
}

.catalog-scroll {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 24px 28px;
}

.catalog-category-block { margin-bottom: 32px; }

.catalog-cat-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 6px;
}

.cat-num { color: var(--accent-gold); font-weight: bold; }
.cat-count { color: var(--text-muted); font-size: 0.85rem; }

.catalog-cat-blurb {
  font-style: italic;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.catalog-book-items { list-style: none; }

.catalog-book-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  background: transparent;
  border: none;
  border-top: 1px solid rgba(196, 154, 69, 0.12);
  padding: 10px 8px;
  color: var(--text-main);
  text-align: left;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s ease;
  touch-action: manipulation;
}

.catalog-book-btn:hover, .catalog-book-btn:active {
  background: rgba(196, 154, 69, 0.1);
}

.book-idx { color: var(--accent-gold); font-size: 0.85rem; }
.book-name { flex: 1; }
.book-meta { font-family: var(--font-sans); font-size: 0.75rem; color: var(--text-muted); }

/* ── MOBILE ── */
@media (max-width: 768px) {
  .sp-header {
    padding: 12px 16px;
    padding-top: max(12px, env(safe-area-inset-top, 12px));
  }

  .brand-title { font-size: 1.1rem; }

  .room-indicator {
    top: 60px;
    left: 16px;
    right: 16px;
    max-width: 100%;
  }

  .room-title { font-size: 1.2rem; }
  .room-blurb { font-size: 0.8rem; }

  .control-dock {
    width: calc(100% - 16px);
    max-width: 100%;
    bottom: max(10px, env(safe-area-inset-bottom, 10px));
    padding: 6px 8px;
    gap: 4px;
  }

  .dock-center-group { gap: 4px; }

  .dock-btn {
    padding: 7px 9px;
    font-size: 0.72rem;
    gap: 3px;
    border-radius: 18px;
  }

  .dock-nav-btn {
    width: 38px;
    height: 38px;
    font-size: 1.2rem;
  }

  .volume-container { display: none; }

  .zoom-controls {
    right: 10px;
    bottom: 80px;
  }

  .zoom-btn {
    width: 48px;
    height: 48px;
    font-size: 1.5rem;
  }

  .reader-overlay { max-width: 100%; }
  .reader-header {
    padding: 12px 16px;
    padding-top: max(12px, env(safe-area-inset-top, 12px));
  }
  .reader-scroll { padding: 20px 16px 80px; }
  .reader-essay-title { font-size: 1.5rem; }
  .reader-excerpt { font-size: 0.93rem; padding-left: 12px; margin-bottom: 20px; }
  .reader-body p { font-size: 0.96rem; line-height: 1.75; }

  .catalog-window { width: 96%; max-height: 90vh; }
  .catalog-header { padding: 14px 18px; }
  .catalog-scroll { padding: 16px 18px; }
  .catalog-book-btn { font-size: 0.86rem; padding: 10px 4px; }
}