/* === LETTER TO AMMA theme — Taiwanese afternoon, camphor wood, tea sepia, old paper === */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;700;900&family=Liu+Jian+Mao+Cao&family=Ma+Shan+Zheng&family=ZCOOL+XiaoWei&family=Cormorant+Garamond:ital,wght@0,400;0,700;1,400&display=swap');

body {
  font-family: 'Noto Serif SC', 'Songti SC', serif;
  background: #1a1410;
}

/* Title screen — warm sepia + soft window light */
#title-screen {
  background-image:
    radial-gradient(ellipse at 50% 35%, rgba(120, 80, 50, 0.28) 0%, transparent 60%),
    linear-gradient(170deg, #2b1d14 0%, #1a1410 60%, #0d0907 100%);
  background-size: cover;
  background-position: center;
  position: relative;
}
#title-screen::after {
  content: '';
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse at 80% 30%, rgba(220, 160, 80, 0.18) 0%, transparent 50%),
    linear-gradient(180deg, rgba(0,0,0,0.20) 0%, rgba(20,10,5,0.10) 30%, rgba(0,0,0,0.45) 80%, rgba(0,0,0,0.92) 100%);
}
#title-screen > * { position: relative; z-index: 1; }

/* Backgrounds — warm tea shift */
#bg-layer { filter: contrast(1.04) brightness(0.96) saturate(1.02) sepia(0.10); }
.cg-img, #cg-viewer img, .route-portrait, .speaker-portrait, .sprite img {
  filter: contrast(1.03) sepia(0.06);
}

/* Soft paper grain veil */
body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 9998;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.95' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.55  0 0 0 0 0.40  0 0 0 0 0.30  0 0 0 0.32 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.20'/></svg>");
  mix-blend-mode: overlay;
  opacity: 0.36;
}

/* === Title screen === */

.title-line1, .title-line2 {
  color: #e8c89a !important;
  font-family: 'ZCOOL XiaoWei', 'Cormorant Garamond', 'Noto Serif SC', serif !important;
  font-weight: 700 !important;
  letter-spacing: 12px !important;
  text-shadow:
    0 0 1px #e8c89a,
    2px 2px 0 rgba(60, 30, 15, 0.85),
    4px 4px 0 rgba(110, 70, 40, 0.55),
    0 0 36px rgba(240, 200, 140, 0.16) !important;
}
.title-line1 { font-size: 5.0rem !important; }
.title-line2 { font-size: 5.6rem !important; }

/* 批 kanji watermark — qiaopi vermilion */
.kanji-bg {
  color: rgba(200, 60, 50, 0.18) !important;
  opacity: 1 !important;
  font-family: 'Ma Shan Zheng', 'ZCOOL XiaoWei', serif !important;
  font-size: 38vw !important;
  letter-spacing: 0 !important;
  font-weight: 400 !important;
}

.title-sub {
  color: #d4a872 !important;
  font-family: 'Ma Shan Zheng', 'Liu Jian Mao Cao', serif !important;
  font-size: 1.7rem !important;
  letter-spacing: 14px !important;
  text-shadow: 0 0 18px rgba(220, 170, 110, 0.32);
}

.title-tag, .title-foot {
  color: #b89070 !important;
  font-family: 'Cormorant Garamond', 'Noto Serif SC', serif !important;
  font-style: italic;
  letter-spacing: 5px !important;
  font-size: 0.85rem !important;
}

.title-quote {
  font-family: 'Liu Jian Mao Cao', 'Ma Shan Zheng', serif !important;
  color: #f0d8a8 !important;
  font-size: 1.6rem !important;
  letter-spacing: 8px !important;
  text-shadow: 0 0 24px rgba(240, 200, 140, 0.30);
}

.title-starring-label {
  color: #a87850 !important;
  letter-spacing: 6px !important;
  font-family: 'Cormorant Garamond', serif !important;
  font-style: italic;
  font-size: 0.78rem !important;
}
.title-starring-list {
  color: #c8a078 !important;
  font-family: 'Noto Serif SC', serif !important;
  font-weight: 500 !important;
  letter-spacing: 4px !important;
  font-size: 0.95rem !important;
}

/* Menu buttons */
.menu-btn {
  background: rgba(40, 28, 18, 0.55) !important;
  border: 1px solid #8b6a48 !important;
  color: #e8c89a !important;
  font-family: 'Noto Serif SC', serif !important;
  font-weight: 500 !important;
  letter-spacing: 5px !important;
  font-size: 1.05rem !important;
  transition: all 0.3s ease;
}
.menu-btn:hover {
  background: rgba(120, 80, 50, 0.55) !important;
  color: #fff0d8 !important;
  border-color: #d4a872 !important;
  box-shadow: 0 0 20px rgba(212, 168, 114, 0.30);
}
.menu-btn.primary {
  background: rgba(120, 60, 30, 0.55) !important;
  border-color: #c88848 !important;
}

/* === Route screen — old letters laid out on a wooden table === */

#route-screen {
  background-image:
    radial-gradient(ellipse at 50% 30%, rgba(140, 90, 50, 0.20) 0%, transparent 65%),
    linear-gradient(180deg, #2b1d14 0%, #1a1006 100%);
}

.route-tag {
  color: #b89070 !important;
  font-family: 'Cormorant Garamond', serif !important;
  font-style: italic;
  letter-spacing: 5px !important;
}

#route-heading {
  color: #e8c89a !important;
  font-family: 'Ma Shan Zheng', 'Noto Serif SC', serif !important;
  font-weight: 400 !important;
  letter-spacing: 5px !important;
  font-size: 1.5rem !important;
  text-shadow: 0 0 14px rgba(240, 200, 140, 0.25);
}

#route-intro {
  color: #c8a078 !important;
  font-family: 'Noto Serif SC', serif !important;
  line-height: 2.1 !important;
  letter-spacing: 1px !important;
  font-size: 0.95rem !important;
}

/* Route cards — like aged envelopes */
.route-card {
  background: linear-gradient(150deg, #2b1d14 0%, #1a1006 100%) !important;
  border: 1px solid #8b6a48 !important;
  box-shadow:
    0 4px 14px rgba(0,0,0,0.40),
    inset 0 0 0 3px rgba(140, 100, 60, 0.18) !important;
  position: relative;
}
.route-card::before {
  content: '';
  position: absolute; top: 12px; right: 12px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #c84030 0%, #802020 70%, #501010 100%);
  box-shadow: 0 0 8px rgba(180, 50, 30, 0.50);
  opacity: 0.85;
}
.route-card:hover {
  border-color: #d4a872 !important;
  box-shadow:
    0 6px 24px rgba(140, 80, 40, 0.40),
    inset 0 0 0 3px rgba(212, 168, 114, 0.25) !important;
  transform: translateY(-3px);
}
.route-card.locked {
  filter: grayscale(0.5) brightness(0.7);
  cursor: not-allowed;
}
.route-card.locked::before {
  background: #444;
  opacity: 0.5;
}
.route-card.completed::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(140, 100, 60, 0.10);
  pointer-events: none;
}

.route-num {
  color: #c88848 !important;
  font-family: 'ZCOOL XiaoWei', serif !important;
  font-size: 2.6rem !important;
  letter-spacing: 0 !important;
}
.route-title {
  color: #e8c89a !important;
  font-family: 'Noto Serif SC', serif !important;
  font-weight: 700 !important;
  letter-spacing: 3px !important;
  font-size: 1.1rem !important;
}
.route-subtitle {
  color: #b89070 !important;
  font-family: 'Liu Jian Mao Cao', 'Ma Shan Zheng', serif !important;
  letter-spacing: 4px !important;
  font-size: 0.95rem !important;
}
.cleared-stamp {
  color: #e0a070 !important;
  border: 1px solid #c88848 !important;
  font-family: 'Cormorant Garamond', serif !important;
  font-style: italic;
  letter-spacing: 3px !important;
  font-size: 0.7rem !important;
  padding: 2px 8px;
}

.route-img.redacted {
  background: repeating-linear-gradient(45deg, #2b1d14 0 8px, #1a1006 8px 16px) !important;
}

/* === Dialogue screen === */

#dialogue-screen { background: #0d0907; }

#dialogue-box {
  background:
    linear-gradient(180deg, rgba(35, 22, 12, 0.92) 0%, rgba(20, 12, 6, 0.96) 100%) !important;
  border-top: 2px solid rgba(140, 100, 60, 0.45) !important;
  border-bottom: 2px solid rgba(140, 100, 60, 0.45) !important;
  box-shadow:
    inset 0 0 40px rgba(120, 80, 40, 0.10),
    0 -8px 30px rgba(0,0,0,0.65) !important;
}

#speaker-name {
  color: #f0d8a8 !important;
  font-family: 'Ma Shan Zheng', 'Noto Serif SC', serif !important;
  font-weight: 400 !important;
  letter-spacing: 6px !important;
  font-size: 1.3rem !important;
  text-shadow: 0 0 12px rgba(240, 200, 140, 0.28);
}

#dialogue-text {
  color: #f0e0c8 !important;
  font-family: 'Noto Serif SC', serif !important;
  font-weight: 400 !important;
  line-height: 2.0 !important;
  letter-spacing: 2px !important;
  font-size: 1.18rem !important;
}
#dialogue-text-sub {
  color: #b89070 !important;
  font-family: 'Cormorant Garamond', serif !important;
  font-style: italic;
  letter-spacing: 1.5px !important;
  font-size: 0.95rem !important;
}

/* Letterbox bars — warm sepia, not black */
.letterbox.top, .letterbox.bottom {
  background: linear-gradient(180deg, #0a0604 0%, #1a0e08 100%) !important;
}

/* Choice overlay */
#choice-overlay {
  background: rgba(15, 10, 6, 0.85) !important;
}
.choice-prompt {
  color: #d4a872 !important;
  font-family: 'Ma Shan Zheng', serif !important;
  letter-spacing: 10px !important;
}
.choice-list button {
  background: rgba(40, 28, 18, 0.85) !important;
  border: 1px solid #8b6a48 !important;
  color: #e8c89a !important;
  font-family: 'Noto Serif SC', serif !important;
  letter-spacing: 4px !important;
  padding: 16px 28px !important;
}
.choice-list button:hover {
  background: rgba(120, 80, 50, 0.75) !important;
  border-color: #d4a872 !important;
  color: #fff0d8 !important;
}

/* Chapter card */
#chapter-card {
  background:
    linear-gradient(180deg, rgba(35, 22, 12, 0.95) 0%, rgba(20, 12, 6, 0.98) 100%) !important;
  border: 1px solid rgba(140, 100, 60, 0.40) !important;
}
.chapter-card-tag {
  color: #b89070 !important;
  font-family: 'Cormorant Garamond', serif !important;
  font-style: italic;
  letter-spacing: 8px !important;
}
.chapter-card-en {
  color: #d4a872 !important;
  font-family: 'Cormorant Garamond', serif !important;
  font-style: italic;
  letter-spacing: 6px !important;
}
.chapter-card-cn {
  color: #f0d8a8 !important;
  font-family: 'Ma Shan Zheng', serif !important;
  letter-spacing: 8px !important;
  font-size: 2.0rem !important;
}

/* Route end card */
#route-end-card {
  background:
    linear-gradient(180deg, rgba(40, 26, 14, 0.96) 0%, rgba(20, 12, 6, 0.98) 100%) !important;
  border: 1px solid #8b6a48 !important;
  box-shadow: 0 0 60px rgba(140, 80, 40, 0.25) !important;
}
.route-end-tag {
  color: #d4a872 !important;
  font-family: 'Ma Shan Zheng', serif !important;
  letter-spacing: 10px !important;
}
.route-end-title {
  color: #f0d8a8 !important;
  font-family: 'Ma Shan Zheng', 'Noto Serif SC', serif !important;
  letter-spacing: 8px !important;
}
.route-end-desc {
  color: #c8a078 !important;
  font-family: 'Noto Serif SC', serif !important;
  line-height: 1.95 !important;
  letter-spacing: 2px !important;
}

/* Backlog / overlays */
.overlay-frame {
  background: linear-gradient(180deg, rgba(35, 22, 12, 0.97) 0%, rgba(15, 8, 4, 0.99) 100%) !important;
  border: 1px solid #8b6a48 !important;
}
.overlay-tag {
  color: #d4a872 !important;
  font-family: 'Cormorant Garamond', serif !important;
  font-style: italic;
  letter-spacing: 8px !important;
}

/* Background per-bg tints — warm afternoon shifts */
.bg-shantou-lane  { --bg-tint: radial-gradient(ellipse at 70% 30%, rgba(220, 160, 80, 0.20) 0%, transparent 60%); }
.bg-old-courtyard { --bg-tint: radial-gradient(ellipse at 50% 30%, rgba(220, 160, 90, 0.22) 0%, transparent 65%); }
.bg-han-river     { --bg-tint: radial-gradient(ellipse at 50% 60%, rgba(220, 180, 140, 0.20) 0%, transparent 65%); }
.bg-yinxinju      { --bg-tint: radial-gradient(ellipse at 50% 50%, rgba(200, 140, 70, 0.20) 0%, transparent 65%); }
.bg-bangkok-st    { --bg-tint: radial-gradient(ellipse at 50% 50%, rgba(240, 120, 50, 0.22) 0%, transparent 65%); }
.bg-river-night   { --bg-tint: radial-gradient(ellipse at 50% 50%, rgba(70, 90, 120, 0.30) 0%, transparent 70%); }
.bg-nanzhi-room   { --bg-tint: radial-gradient(ellipse at 70% 40%, rgba(200, 140, 80, 0.18) 0%, transparent 60%); }
.bg-altar         { --bg-tint: radial-gradient(ellipse at 50% 50%, rgba(200, 80, 40, 0.24) 0%, transparent 65%); }
.bg-airport       { --bg-tint: radial-gradient(ellipse at 50% 50%, rgba(180, 140, 100, 0.18) 0%, transparent 70%); }

/* Credits screen */
#credits-screen {
  background: linear-gradient(180deg, #2b1d14 0%, #1a1006 100%);
}
#credits-screen h2 {
  color: #f0d8a8 !important;
  font-family: 'Ma Shan Zheng', serif !important;
  letter-spacing: 6px !important;
}
#credits-screen h3 {
  color: #d4a872 !important;
  font-family: 'Cormorant Garamond', serif !important;
  font-style: italic;
  letter-spacing: 6px !important;
}
#credits-screen p {
  color: #c8a078 !important;
  font-family: 'Noto Serif SC', serif !important;
  letter-spacing: 3px !important;
}
.about-link {
  color: #e0a070 !important;
  border-bottom: 1px dotted #c88848;
}
.about-link:hover { color: #f0d8a8 !important; }

/* === AUTO-INJECTED bg/cg CSS RULES (do not edit by hand) === */
#bg-layer.bg-airport { --bg-img: url('assets/bg/bg-airport.png'); --bg-tint: linear-gradient(180deg,rgba(0,0,0,0.15) 0%,rgba(0,0,0,0.5) 100%); }
#bg-layer.bg-altar { --bg-img: url('assets/bg/bg-altar.png'); --bg-tint: linear-gradient(180deg,rgba(0,0,0,0.15) 0%,rgba(0,0,0,0.5) 100%); }
#bg-layer.bg-bangkok-st { --bg-img: url('assets/bg/bg-bangkok-st.png'); --bg-tint: linear-gradient(180deg,rgba(0,0,0,0.15) 0%,rgba(0,0,0,0.5) 100%); }
#bg-layer.bg-han-river { --bg-img: url('assets/bg/bg-han-river.png'); --bg-tint: linear-gradient(180deg,rgba(0,0,0,0.15) 0%,rgba(0,0,0,0.5) 100%); }
#bg-layer.bg-inn-night { --bg-img: url('assets/bg/bg-inn-night.png'); --bg-tint: linear-gradient(180deg,rgba(0,0,0,0.15) 0%,rgba(0,0,0,0.5) 100%); }
#bg-layer.bg-nanzhi-room { --bg-img: url('assets/bg/bg-nanzhi-room.png'); --bg-tint: linear-gradient(180deg,rgba(0,0,0,0.15) 0%,rgba(0,0,0,0.5) 100%); }
#bg-layer.bg-old-courtyard { --bg-img: url('assets/bg/bg-old-courtyard.png'); --bg-tint: radial-gradient(ellipse at 50% 40%,rgba(180,160,120,0.15) 0%,transparent 60%),linear-gradient(180deg,rgba(20,15,10,0.2) 0%,rgba(0,0,0,0.55) 100%); }
#bg-layer.bg-river-night { --bg-img: url('assets/bg/bg-river-night.png'); --bg-tint: linear-gradient(180deg,rgba(0,0,0,0.15) 0%,rgba(0,0,0,0.5) 100%); }
#bg-layer.bg-shantou-lane { --bg-img: url('assets/bg/bg-shantou-lane.png'); --bg-tint: linear-gradient(180deg,rgba(0,0,0,0.15) 0%,rgba(0,0,0,0.5) 100%); }
#bg-layer.bg-yinxinju { --bg-img: url('assets/bg/bg-yinxinju.png'); --bg-tint: linear-gradient(180deg,rgba(0,0,0,0.15) 0%,rgba(0,0,0,0.5) 100%); }
#bg-layer { background: var(--bg-tint, none), var(--bg-img, none) center/cover no-repeat; }
/* === END AUTO-INJECTED === */