/* Torii — fotorealistické pozadie, brána vpravo viditeľná */
:root {
  --red: #8b1528;
  --red-dark: #5c0a18;
  --paper: #ece4d4;
  --paper-dark: #ddd2bc;
  --ink: #1a1614;
  --ink-muted: #5a5248;
  --border: rgba(180, 170, 155, 0.6);
}

/* Papierová textúra zostáva viditeľná */
body.theme-photo::before { opacity: 0.75; }

body.theme-photo::after { opacity: 0.9; }

.deco-layer {
  left: var(--sidebar-w);
}

.photo-scene {
  position: absolute;
  inset: 0;
}

/* Brána — pravá strana, jemne do stratena v papieri */
.photo-scene__img {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: auto;
  width: 58%;
  background: url('../assets/bg-torii-mist.jpg') 28% 40% / cover no-repeat;
  filter: grayscale(0.55) contrast(1.05) brightness(1.08) saturate(0.65);
  opacity: 0.62;
  mask-image:
    linear-gradient(to right, transparent 0%, rgba(0, 0, 0, 0.25) 18%, black 48%, black 100%),
    linear-gradient(to bottom, transparent 0%, black 14%, black 88%, transparent 100%);
  mask-composite: intersect;
  -webkit-mask-image:
    linear-gradient(to right, transparent 0%, rgba(0, 0, 0, 0.25) 18%, black 48%, black 100%),
    linear-gradient(to bottom, transparent 0%, black 14%, black 88%, transparent 100%);
  -webkit-mask-composite: source-in;
}

.photo-scene__water {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: auto;
  width: 58%;
  background: url('../assets/bg-torii.jpg') 30% 65% / cover no-repeat;
  opacity: 0.22;
  mix-blend-mode: multiply;
  filter: grayscale(0.7) contrast(1.02);
  mask-image:
    linear-gradient(to right, transparent 0%, rgba(0, 0, 0, 0.2) 22%, black 52%, black 100%),
    linear-gradient(to bottom, transparent 28%, black 58%, black 92%, transparent 100%);
  mask-composite: intersect;
  -webkit-mask-image:
    linear-gradient(to right, transparent 0%, rgba(0, 0, 0, 0.2) 22%, black 52%, black 100%),
    linear-gradient(to bottom, transparent 28%, black 58%, black 92%, transparent 100%);
  -webkit-mask-composite: source-in;
}

.photo-scene__mist {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg,
      rgba(236, 228, 212, 0.94) 0%,
      rgba(236, 228, 212, 0.82) 32%,
      rgba(236, 228, 212, 0.55) 50%,
      rgba(236, 228, 212, 0.22) 64%,
      rgba(236, 228, 212, 0.06) 78%,
      transparent 92%),
    linear-gradient(to bottom,
      rgba(236, 228, 212, 0.75) 0%,
      rgba(236, 228, 212, 0.35) 12%,
      transparent 28%,
      rgba(180, 165, 140, 0.08) 55%,
      rgba(160, 145, 120, 0.18) 100%);
  pointer-events: none;
}

.photo-scene__mist-anim {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 58%;
  left: auto;
  background:
    radial-gradient(ellipse 70% 35% at 82% 55%, rgba(255, 255, 255, 0.18) 0%, transparent 70%);
  animation: mist-breathe 14s ease-in-out infinite;
  pointer-events: none;
  mask-image: linear-gradient(to right, transparent 25%, black 55%);
  -webkit-mask-image: linear-gradient(to right, transparent 25%, black 55%);
}

@keyframes mist-breathe {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.85; }
}

.photo-scene__vignette {
  position: absolute;
  inset: 0;
  box-shadow:
    inset 120px 0 100px rgba(236, 228, 212, 0.85),
    inset -30px 0 60px rgba(26, 22, 20, 0.06);
  pointer-events: none;
}

.main {
  background: linear-gradient(90deg,
    rgba(236, 228, 212, 0.88) 0%,
    rgba(236, 228, 212, 0.78) 42%,
    rgba(236, 228, 212, 0.58) 56%,
    rgba(236, 228, 212, 0.32) 68%,
    rgba(236, 228, 212, 0.08) 82%,
    transparent 94%);
}

.main-header {
  background: rgba(236, 228, 212, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.main-header h2::before {
  content: '鳥居 ';
  font-family: 'Noto Serif JP', serif;
  opacity: 0.35;
  font-size: 0.85em;
}

.sidebar {
  border-right-color: #8b1528;
  background: linear-gradient(180deg, #141010 0%, #1a1614 100%);
}

.sidebar-brand .kanji { color: #c41e3a; }

.stamp {
  background: linear-gradient(145deg, #a83248, #8b1528);
  border-color: #5c0a18;
  border-radius: 50%;
}

.exercise-card {
  background: rgba(248, 242, 230, 0.9);
  backdrop-filter: blur(2px);
}

.info-block { border-left-color: #8b1528; }
.info-block .belt { color: #8b1528; }
.links-block a, .kudo-links a { color: #8b1528; }
.exercise-num { color: #8b1528; }

@media (max-width: 768px) {
  .deco-layer { left: 0; }
  .main { background: rgba(236, 228, 212, 0.92); }
  .photo-scene__img,
  .photo-scene__water {
    width: 100%;
    opacity: 0.2;
  }
}