/* ============================================================
   세레나의 서재 CanCan — 디자인 시스템 (다크/라이트/시스템)
   우주선 함교 옆의 조용한 개인서재 · 네이비+금색+세레나 블루
   아케이드 연출(CRT/별/스프라이트) · WebGL 불필요, DOM만으로 동작
   ============================================================ */
:root, html[data-theme="dark"] {
  --bg: #05070f;
  --bg2: #0a0f22;
  --navy: #0b1230;
  --navy2: #111b45;
  --panel: rgba(10, 15, 34, 0.82);
  --glass: rgba(16, 24, 54, 0.66);
  --card-bg: rgba(10, 14, 32, 0.72);
  --field-bg: rgba(5, 8, 20, 0.7);
  --field-bd: rgba(120, 140, 200, 0.25);
  --edge: rgba(120, 140, 200, 0.16);
  --edge-strong: rgba(120, 140, 200, 0.3);
  --hover-tint: rgba(255, 255, 255, 0.04);
  --gold: #ffd45a;
  --gold-dim: #b8932f;
  --gold-tint: rgba(255, 212, 90, 0.08);
  --blue: #4DA6FF;
  --blue-soft: #7ab8ff;
  --blue-tint: rgba(77, 166, 255, 0.1);
  --paper: #f4ecd9;
  --paper-dim: #d8cdb2;
  --ink: #2a2416;
  --text: #e8ecf8;
  --text-strong: #ffffff;
  --muted: #93a0c0;
  --danger: #ff5a6e;
  --ok: #5ae0a0;
  --header-bg: linear-gradient(180deg, rgba(7, 10, 24, 0.95), rgba(7, 10, 24, 0.82));
  --header-bd: rgba(255, 212, 90, 0.18);
  --msg-user-bg: rgba(77, 166, 255, 0.16);
  --msg-user-bd: rgba(77, 166, 255, 0.35);
  --msg-serena-bg: rgba(255, 212, 90, 0.07);
  --msg-serena-bd: rgba(255, 212, 90, 0.28);
  --comment-bg: rgba(5, 8, 20, 0.4);
  --code-bg: rgba(77, 166, 255, 0.12);
  --pre-bg: rgba(3, 5, 14, 0.8);
  --choice-bg: rgba(14, 19, 42, 0.9);
  --dialogue-bg: linear-gradient(180deg, rgba(16, 22, 48, 0.96), rgba(9, 13, 30, 0.96));
  --dialogue-bd: rgba(255, 212, 90, 0.35);
  --vn-text: #f2f5ff;
  --float-shadow: rgba(77, 166, 255, 0.35);
  --scanline-a: 0.05;
  --star-opacity: 0.8;
  --th-bg: rgba(77, 166, 255, 0.1);
  --att-bg: rgba(5, 8, 20, 0.45);
  --body-grad-a: #16224d;
  --body-grad-b: #0e1a3a;
  --hero-shadow: 0 4px 0 rgba(20, 30, 70, 0.9);
  --modal-bg: linear-gradient(180deg, #101731, #0a0f22);
  --bubble-bg: rgba(10, 14, 32, 0.95);
  --preview-bg: rgba(3, 5, 14, 0.6);
  --crt-a: 0.05;
}
html[data-theme="light"] {
  --bg: #f1ede2;
  --bg2: #e8e2d2;
  --navy: #1a2340;
  --navy2: #27325a;
  --panel: rgba(255, 253, 246, 0.9);
  --glass: rgba(255, 253, 246, 0.75);
  --card-bg: rgba(255, 253, 246, 0.92);
  --field-bg: rgba(255, 255, 255, 0.85);
  --field-bd: rgba(26, 35, 64, 0.22);
  --edge: rgba(26, 35, 64, 0.14);
  --edge-strong: rgba(26, 35, 64, 0.3);
  --hover-tint: rgba(26, 35, 64, 0.05);
  --gold: #a86e00;
  --gold-dim: #8a6d2f;
  --gold-tint: rgba(168, 110, 0, 0.09);
  --blue: #1f6fce;
  --blue-soft: #1a5cad;
  --blue-tint: rgba(31, 111, 206, 0.08);
  --paper: #fbf7ec;
  --paper-dim: #6e6448;
  --ink: #2a2416;
  --text: #252b40;
  --text-strong: #10152a;
  --muted: #5b6379;
  --danger: #c92f45;
  --ok: #1f8a5c;
  --header-bg: linear-gradient(180deg, rgba(250, 247, 238, 0.97), rgba(250, 247, 238, 0.88));
  --header-bd: rgba(168, 110, 0, 0.3);
  --msg-user-bg: rgba(31, 111, 206, 0.1);
  --msg-user-bd: rgba(31, 111, 206, 0.35);
  --msg-serena-bg: rgba(168, 110, 0, 0.08);
  --msg-serena-bd: rgba(168, 110, 0, 0.3);
  --comment-bg: rgba(255, 255, 255, 0.6);
  --code-bg: rgba(31, 111, 206, 0.09);
  --pre-bg: rgba(245, 242, 230, 0.9);
  --choice-bg: rgba(255, 253, 246, 0.94);
  --dialogue-bg: linear-gradient(180deg, rgba(255, 253, 246, 0.97), rgba(244, 240, 227, 0.97));
  --dialogue-bd: rgba(168, 110, 0, 0.4);
  --vn-text: #23283d;
  --float-shadow: rgba(31, 111, 206, 0.25);
  --scanline-a: 0.03;
  --star-opacity: 0.3;
  --th-bg: rgba(31, 111, 206, 0.08);
  --att-bg: rgba(255, 255, 255, 0.6);
  --body-grad-a: #d9d2bd;
  --body-grad-b: #e3dcc9;
  --hero-shadow: 0 4px 0 rgba(30, 40, 70, 0.16);
  --modal-bg: linear-gradient(180deg, #fffdf6, #f3eee1);
  --bubble-bg: rgba(255, 253, 246, 0.97);
  --preview-bg: rgba(255, 255, 255, 0.75);
  --crt-a: 0.02;
}
:root {
  --font-serif: "Playfair Display", "Nanum Myeongjo", serif;
  --font-ui: "Noto Sans KR", "Noto Sans JP", "Malgun Gothic", "Apple SD Gothic Neo", "Segoe UI", sans-serif;
  --font-num: Consolas, "Cascadia Mono", "Segoe UI", monospace;
  --header-h: 58px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 50% -10%, var(--body-grad-a) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 110%, var(--body-grad-b) 0%, transparent 50%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
  transition: background 0.35s ease, color 0.35s ease;
}
a { color: var(--blue-soft); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
button { font-family: var(--font-ui); }
::selection { background: rgba(77, 166, 255, 0.35); }

/* ---------- 아케이드 연출 레이어 ---------- */
#starfield {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  opacity: var(--star-opacity);
  transition: opacity 0.35s ease;
}
#scanlines {
  position: fixed; inset: 0; z-index: 90; pointer-events: none;
  background: repeating-linear-gradient(to bottom, rgba(0,0,0,var(--crt-a)) 0 1px, transparent 1px 3px);
}
#vignette {
  position: fixed; inset: 0; z-index: 89; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,5,0.5) 100%);
}
html[data-theme="light"] #vignette { opacity: 0.25; }
main, header, footer { position: relative; z-index: 1; }

/* ---------- 헤더 ---------- */
#site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 18px;
  height: var(--header-h);
  padding: 0 18px;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--header-bd);
  box-shadow: 0 4px 24px rgba(0, 0, 10, 0.28);
}
.brand { display: flex; align-items: baseline; gap: 8px; text-decoration: none !important; white-space: nowrap; }
.brand-mark { color: var(--gold); font-size: 20px; text-shadow: 0 0 12px rgba(255,212,90,0.7); animation: markPulse 3.2s ease-in-out infinite; }
.brand-name { font-family: var(--font-serif); font-weight: 900; font-size: 19px; color: var(--text-strong); letter-spacing: 0.02em; }
.brand-sub { font-family: var(--font-num); font-size: 10px; letter-spacing: 0.32em; color: var(--blue-soft); border: 1px solid var(--field-bd); padding: 1px 6px 2px; border-radius: 3px; }
@keyframes markPulse { 0%,100% { opacity: 1; } 50% { opacity: 0.55; } }

#main-nav { display: flex; gap: 2px; margin-left: 8px; flex: 1; overflow-x: auto; scrollbar-width: none; }
#main-nav::-webkit-scrollbar { display: none; }
#main-nav a {
  color: var(--muted); font-size: 13.5px; font-weight: 700;
  padding: 7px 12px; border-radius: 6px; text-decoration: none;
  border: 1px solid transparent; white-space: nowrap;
  transition: color .15s, background .15s, border-color .15s;
}
#main-nav a:hover { color: var(--gold); background: var(--gold-tint); }
#main-nav a.active {
  color: var(--gold);
  border-color: var(--gold-tint);
  background: var(--gold-tint);
}
.header-tools { display: flex; align-items: center; gap: 10px; }
.icon-btn {
  cursor: pointer; background: var(--hover-tint);
  border: 1px solid var(--edge); color: var(--text);
  border-radius: 8px; padding: 5px 9px; font-size: 15px; line-height: 1;
}
.icon-btn:hover { border-color: var(--gold); }
.icon-btn.off { opacity: 0.45; filter: grayscale(1); }
.lang-select {
  cursor: pointer; background: var(--field-bg); color: var(--text);
  border: 1px solid var(--edge); border-radius: 8px;
  padding: 5px 8px; font-size: 12.5px; font-family: var(--font-ui);
}
.user-chip {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; color: var(--text);
  background: var(--blue-tint);
  border: 1px solid var(--msg-user-bd);
  padding: 5px 10px; border-radius: 999px; text-decoration: none !important;
}
.user-chip b { color: var(--blue-soft); }
.badge-pending {
  background: var(--gold-tint); border: 1px solid var(--gold-dim);
  color: var(--gold); border-radius: 999px; padding: 0 7px; font-size: 11px; font-weight: 800;
}

/* ---------- 공통 레이아웃 ---------- */
#view { min-height: calc(100vh - var(--header-h) - 90px); padding: 26px 18px 60px; max-width: 1180px; margin: 0 auto; width: 100%; }
.view-enter { animation: viewIn .38s cubic-bezier(0.2, 0.8, 0.3, 1); }
@keyframes viewIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.sec-title {
  font-family: var(--font-serif); font-size: 30px; font-weight: 900;
  color: var(--text-strong); margin: 6px 0 4px; letter-spacing: 0.01em;
}
.sec-title .accent { color: var(--gold); text-shadow: 0 0 18px rgba(255,212,90,0.45); }
.sec-sub { color: var(--muted); font-size: 14px; margin: 0 0 26px; }
.mode-badge {
  display: inline-block; font-size: 11.5px; font-weight: 800; letter-spacing: 0.06em;
  border-radius: 999px; padding: 3px 11px; margin-left: 8px; vertical-align: 2px;
}
.mode-badge.sample { background: var(--gold-tint); border: 1px solid var(--gold-dim); color: var(--gold); }
.mode-badge.llm { background: rgba(90, 224, 160, 0.1); border: 1px solid rgba(90,224,160,0.45); color: var(--ok); }

/* ---------- 버튼 ---------- */
.btn {
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font-weight: 800; font-size: 14px; letter-spacing: 0.02em;
  color: #2a1d00; background: linear-gradient(180deg, #ffe89a, var(--gold));
  border: 1px solid var(--gold); border-radius: 8px;
  padding: 10px 20px;
  box-shadow: 0 0 16px rgba(255, 212, 90, 0.25), inset 0 1px 0 rgba(255,255,255,0.5);
  transition: transform .12s, box-shadow .12s, filter .12s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 0 26px rgba(255, 212, 90, 0.45), inset 0 1px 0 rgba(255,255,255,0.5); }
.btn:active { transform: translateY(1px); }
.btn.ghost { background: transparent; color: var(--gold); border-color: var(--gold-dim); box-shadow: none; }
.btn.ghost:hover { background: var(--gold-tint); }
.btn.blue { background: linear-gradient(180deg, #8ac4ff, #3f8fe0); color: #04101f; border-color: var(--blue); box-shadow: 0 0 16px rgba(77, 166, 255, 0.35), inset 0 1px 0 rgba(255,255,255,0.5); }
.btn.blue:hover { box-shadow: 0 0 26px rgba(77, 166, 255, 0.55), inset 0 1px 0 rgba(255,255,255,0.5); }
.btn.danger { background: linear-gradient(180deg, #ff8a98, #e0485c); border-color: #ff8a98; color: #20050a; box-shadow: 0 0 16px rgba(255, 90, 110, 0.3); }
.btn.danger:hover { box-shadow: 0 0 26px rgba(255, 90, 110, 0.5); }
.btn.sm { padding: 6px 13px; font-size: 12.5px; border-radius: 7px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

/* ---------- 카드 / 패널 ---------- */
.card {
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: 14px;
  padding: 22px;
  backdrop-filter: blur(8px);
  box-shadow: 0 14px 40px rgba(0, 0, 10, 0.2);
}
.card.gold { border-color: var(--gold-dim); }
.card.blue { border-color: var(--msg-user-bd); }
.grid { display: grid; gap: 16px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }

/* ---------- 폼 ---------- */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; font-weight: 700; color: var(--blue-soft); margin-bottom: 6px; letter-spacing: 0.04em; }
.input, textarea.input, select.input {
  width: 100%; background: var(--field-bg);
  border: 1px solid var(--field-bd); border-radius: 8px;
  color: var(--text); font-family: var(--font-ui); font-size: 14.5px;
  padding: 10px 13px; transition: border-color .15s, box-shadow .15s;
}
.input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(77, 166, 255, 0.18); }
textarea.input { resize: vertical; min-height: 110px; line-height: 1.6; }
.input::placeholder { color: var(--muted); opacity: 0.75; }
select.input option { background: var(--panel); color: var(--text); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  cursor: pointer; font-size: 12.5px; font-weight: 700; color: var(--muted);
  background: var(--hover-tint); border: 1px solid var(--field-bd);
  border-radius: 999px; padding: 6px 13px; transition: all .15s;
}
.chip:hover { color: var(--gold); border-color: var(--gold-dim); }
.chip.on { color: #2a1d00; background: var(--gold); border-color: var(--gold); }
.radio-row { display: flex; gap: 14px; flex-wrap: wrap; }
.radio-card {
  flex: 1; min-width: 200px; cursor: pointer;
  border: 1px solid var(--field-bd); border-radius: 10px;
  padding: 12px 15px; background: var(--field-bg);
}
.radio-card input { accent-color: var(--gold); }
.radio-card b { font-size: 14px; }
.radio-card small { display: block; color: var(--muted); font-size: 12px; margin-top: 3px; }
.radio-card:has(input:checked) { border-color: var(--gold); background: var(--gold-tint); }

/* ---------- 푸터 ---------- */
#site-footer {
  position: relative; z-index: 1;
  text-align: center; padding: 28px 18px 34px;
  border-top: 1px solid var(--edge);
  color: var(--muted);
}
.footer-line { font-family: var(--font-serif); font-style: italic; font-size: 17px; color: var(--gold-dim); }
.footer-sub { font-size: 12px; margin-top: 6px; }

/* ---------- 토스트 ---------- */
#toast {
  position: fixed; left: 50%; bottom: 34px; transform: translateX(-50%) translateY(80px);
  z-index: 120; background: var(--bubble-bg);
  border: 1px solid var(--gold); color: var(--text);
  border-radius: 10px; padding: 11px 22px; font-size: 14px; font-weight: 700;
  box-shadow: 0 10px 34px rgba(0,0,10,0.4);
  opacity: 0; transition: transform .3s cubic-bezier(0.2, 1.2, 0.3, 1), opacity .3s;
  pointer-events: none; max-width: 86vw; text-align: center;
}
#toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
#toast.err { border-color: var(--danger); }

/* ---------- 모달 ---------- */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 110;
  background: rgba(2, 3, 10, 0.72); backdrop-filter: blur(4px);
  display: grid; place-items: center; padding: 18px;
  animation: fadeIn .2s;
}
html[data-theme="light"] .modal-backdrop { background: rgba(40, 36, 20, 0.45); }
.modal-box {
  width: min(520px, 94vw);
  background: var(--modal-bg);
  color: var(--text);
  border: 1px solid var(--gold-dim);
  border-radius: 16px; padding: 26px;
  box-shadow: 0 24px 70px rgba(0,0,10,0.5);
  animation: popIn .28s cubic-bezier(0.2, 1.3, 0.3, 1);
  max-height: 86vh; overflow-y: auto;
}
.modal-box h3 { margin: 0 0 14px; font-family: var(--font-serif); color: var(--gold); }
@keyframes fadeIn { from { opacity: 0; } }
@keyframes popIn { from { opacity: 0; transform: scale(0.92) translateY(10px); } }

/* ============================================================
   세레나 캐릭터 — 아케이드 스타일 살아 있는 등장/이동
   ============================================================ */
.serena-float {
  position: fixed; z-index: 60; bottom: -10px; right: -10px;
  width: min(240px, 26vw); pointer-events: none;
  transition: right 3.4s cubic-bezier(0.4, 0, 0.2, 1), left 3.4s cubic-bezier(0.4, 0, 0.2, 1), bottom .4s;
}
.serena-float img {
  width: 100%; height: auto; display: block;
  filter: drop-shadow(0 0 18px var(--float-shadow));
  animation: floatBob 2.6s ease-in-out infinite;
  user-select: none; -webkit-user-drag: none;
}
.serena-float.hop img { animation: floatHop .5s ease-in-out 2; }
.serena-float.walk-across img { animation: walkSway .5s ease-in-out infinite; }
.serena-float.hidden { display: none; }
.sf-bubble {
  position: absolute; bottom: calc(100% - 14px); right: 8px;
  max-width: 240px; padding: 9px 14px;
  background: var(--bubble-bg);
  border: 1px solid var(--gold); border-radius: 12px 12px 4px 12px;
  font-size: 12.5px; line-height: 1.5; color: var(--text);
  box-shadow: 0 8px 26px rgba(0, 0, 10, 0.4);
  opacity: 0; transform: translateY(8px); transition: opacity .25s, transform .25s;
  pointer-events: auto; word-break: keep-all;
}
.sf-bubble.show { opacity: 1; transform: none; }
@keyframes floatBob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
@keyframes floatHop {
  0%,100% { transform: translateY(0); }
  35% { transform: translateY(-46px) rotate(-6deg); }
  70% { transform: translateY(-14px) rotate(4deg); }
}
@keyframes walkSway { 0%,100% { transform: rotate(-3deg) translateY(-3px); } 50% { transform: rotate(3deg) translateY(-8px); } }

/* ============================================================
   홈 — 입구
   ============================================================ */
.hero {
  text-align: center; padding: 46px 10px 34px; position: relative;
}
.hero-kicker {
  font-size: 12px; letter-spacing: 0.5em; color: var(--blue-soft);
  text-transform: uppercase; margin-bottom: 14px;
}
.hero-title {
  font-family: var(--font-serif); font-weight: 900;
  font-size: clamp(40px, 7.2vw, 78px); line-height: 1.04; margin: 0;
  color: var(--text-strong);
  text-shadow: var(--hero-shadow);
}
.hero-title .gold { color: var(--gold); }
.hero-sub { color: var(--muted); font-size: 16px; margin: 18px auto 0; max-width: 620px; }
.hero-quote {
  font-family: var(--font-serif); font-style: italic;
  font-size: clamp(19px, 3vw, 27px); color: var(--paper-dim);
  margin: 30px auto 8px; max-width: 760px; line-height: 1.5;
}
.hero-quote b { color: var(--gold); }
.door-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); gap: 16px; margin: 34px auto 8px; max-width: 980px; }
.door {
  position: relative; cursor: pointer; text-align: left;
  border: 1px solid var(--edge); border-radius: 14px;
  background: var(--card-bg);
  padding: 20px 18px 16px; text-decoration: none !important;
  box-shadow: 0 12px 34px rgba(0, 0, 10, 0.18);
  transition: transform .16s cubic-bezier(0.2, 1.3, 0.3, 1), border-color .16s, box-shadow .16s;
  overflow: hidden;
}
.door:hover { transform: translateY(-5px) scale(1.02); border-color: var(--gold); }
.door .door-icon { font-size: 30px; }
.door .door-title { font-family: var(--font-serif); font-size: 19px; font-weight: 700; color: var(--text-strong); margin: 10px 0 4px; }
.door .door-desc { font-size: 12.5px; color: var(--muted); line-height: 1.55; }
.door .door-tag {
  display: inline-block; margin-top: 10px; font-size: 10px; font-weight: 800;
  letter-spacing: 0.18em; color: var(--gold); border-top: 1px dashed var(--gold-dim); padding-top: 8px;
}

/* Layer 카드 (기존 CanCan 6개 층위 보존) */
.layer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: 12px; }
.layer-card {
  cursor: pointer; position: relative; text-align: center;
  border: 1px solid var(--edge); border-radius: 12px;
  background: var(--card-bg); padding: 16px 10px 14px;
  transition: transform .15s, border-color .15s, box-shadow .15s, background .15s;
}
.layer-card:hover { transform: translateY(-4px); border-color: var(--blue); }
.layer-card.on { border-color: var(--gold); background: var(--gold-tint); }
.layer-card .layer-num { font-family: var(--font-num); font-size: 12px; letter-spacing: 0.22em; color: var(--blue-soft); }
.layer-card .layer-name { font-weight: 900; font-size: 14.5px; margin: 4px 0 2px; }
.layer-card .layer-en { font-size: 10.5px; color: var(--muted); }
.layer-detail { margin-top: 16px; padding: 16px 18px; border-left: 3px solid var(--gold); background: var(--gold-tint); border-radius: 0 10px 10px 0; font-size: 14px; min-height: 60px; }

/* 미래 호출 */
.future-card-wrap { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; align-items: start; }
.future-response { animation: popIn .3s cubic-bezier(0.2, 1.3, 0.3, 1); }
.future-response .fq { font-family: var(--font-serif); font-style: italic; color: var(--gold); font-size: 16px; }

/* ============================================================
   세레나의 일상 — 미연시/비주얼노벨 스테이지
   ============================================================ */
.vn-wrap { max-width: 900px; margin: 0 auto; }
.vn-hud {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  font-family: var(--font-num); font-size: 12.5px; color: var(--blue-soft);
  border: 1px solid var(--msg-user-bd); border-radius: 10px;
  background: var(--card-bg); padding: 8px 14px; margin-bottom: 14px;
}
.vn-hud .hearts { color: var(--danger); letter-spacing: 2px; font-size: 14px; }
.vn-stage {
  position: relative; border-radius: 16px; overflow: hidden;
  border: 1px solid var(--gold-dim);
  box-shadow: 0 0 0 1px rgba(255, 212, 90, 0.12), 0 24px 70px rgba(0, 0, 10, 0.4);
  background: #000; aspect-ratio: 16 / 9;
  display: grid; place-items: center;
}
.vn-bg {
  position: absolute; inset: 0; transition: background 1.2s ease;
  background: radial-gradient(ellipse at 50% 110%, #1c2a5c 0%, #0a0f24 58%, #05070f 100%);
}
html[data-theme="light"] .vn-bg { background: radial-gradient(ellipse at 50% 110%, #b9c6e8 0%, #dfe2ec 58%, #e9e7df 100%); }
.vn-bg.bg-window { background: radial-gradient(ellipse at 72% 18%, #3a4f8c 0%, transparent 52%), radial-gradient(ellipse at 50% 110%, #182752 0%, #0a0f24 60%, #05070f 100%); }
.vn-bg.bg-shelf { background: linear-gradient(180deg, #101735 0%, #0a0f24 40%), repeating-linear-gradient(90deg, rgba(255,212,90,0.05) 0 10px, transparent 10px 46px), radial-gradient(ellipse at 30% 100%, #23376b 0%, #0a0f24 62%, #05070f 100%); }
.vn-bg.bg-rain { background: radial-gradient(ellipse at 70% 8%, #33446e 0%, transparent 50%), repeating-linear-gradient(105deg, rgba(160, 190, 240, 0.07) 0 1px, transparent 1px 9px), radial-gradient(ellipse at 50% 110%, #14224a 0%, #0a0f24 60%, #05070f 100%); }
.vn-bg.bg-star { background: radial-gradient(circle at 18% 22%, rgba(255,255,255,0.55) 0 1px, transparent 2px), radial-gradient(circle at 66% 14%, rgba(180, 210, 255, 0.5) 0 1px, transparent 2px), radial-gradient(circle at 84% 38%, rgba(255,255,255,0.4) 0 1px, transparent 2px), radial-gradient(circle at 42% 8%, rgba(255,212,90,0.4) 0 1px, transparent 2px), radial-gradient(ellipse at 50% 130%, #101b3e 0%, #060a18 60%, #04060e 100%); }
.vn-bg.bg-desk { background: radial-gradient(ellipse at 50% 40%, #2a3a6e 0%, transparent 60%), linear-gradient(180deg, #0e1530, #070b1a); }
.vn-bg.bg-library { background: radial-gradient(ellipse at 50% 0%, #233268 0%, transparent 55%), repeating-linear-gradient(90deg, rgba(255,212,90,0.04) 0 12px, transparent 12px 44px), radial-gradient(ellipse at 50% 110%, #1c2a5c 0%, #0a0f24 60%, #05070f 100%); }
html[data-theme="light"] .vn-bg.bg-window { background: radial-gradient(ellipse at 72% 18%, #aac4ee 0%, transparent 52%), radial-gradient(ellipse at 50% 110%, #c7d2ee 0%, #e6e4dc 60%, #efece2 100%); }
html[data-theme="light"] .vn-bg.bg-shelf { background: linear-gradient(180deg, #cdd4e8 0%, #e2e0d6 40%), repeating-linear-gradient(90deg, rgba(168,110,0,0.06) 0 10px, transparent 10px 46px), radial-gradient(ellipse at 30% 100%, #b6c4e6 0%, #e0ded4 62%, #ece9e0 100%); }
html[data-theme="light"] .vn-bg.bg-rain { background: radial-gradient(ellipse at 70% 8%, #9fb4d8 0%, transparent 50%), repeating-linear-gradient(105deg, rgba(90,110,150,0.12) 0 1px, transparent 1px 9px), radial-gradient(ellipse at 50% 110%, #c2cce6 0%, #e3e1d8 60%, #edeae1 100%); }
html[data-theme="light"] .vn-bg.bg-star { background: radial-gradient(circle at 18% 22%, rgba(70,80,140,0.7) 0 1px, transparent 2px), radial-gradient(circle at 66% 14%, rgba(70,80,140,0.6) 0 1px, transparent 2px), radial-gradient(circle at 84% 38%, rgba(70,80,140,0.55) 0 1px, transparent 2px), radial-gradient(circle at 42% 8%, rgba(168,110,0,0.5) 0 1px, transparent 2px), radial-gradient(ellipse at 50% 130%, #8fa2cc 0%, #d9d7ce 60%, #e9e6dd 100%); }
html[data-theme="light"] .vn-bg.bg-desk { background: radial-gradient(ellipse at 50% 40%, #b9c4e2 0%, transparent 60%), linear-gradient(180deg, #d8d6cd, #e9e6dd); }
html[data-theme="light"] .vn-bg.bg-library { background: radial-gradient(ellipse at 50% 0%, #a9b8dc 0%, transparent 55%), repeating-linear-gradient(90deg, rgba(168,110,0,0.05) 0 12px, transparent 12px 44px), radial-gradient(ellipse at 50% 110%, #b6c4e6 0%, #e0ded4 60%, #ece9e0 100%); }
.vn-floor { position: absolute; left: 0; right: 0; bottom: 0; height: 22%; background: linear-gradient(180deg, transparent, rgba(0, 0, 5, 0.55)); }
html[data-theme="light"] .vn-floor { background: linear-gradient(180deg, transparent, rgba(60, 50, 20, 0.18)); }
.vn-char {
  position: absolute; bottom: 18%; left: 50%;
  width: clamp(180px, 30%, 320px); transform: translateX(-50%);
  filter: drop-shadow(0 0 26px var(--float-shadow));
  animation: charIdle 2.4s ease-in-out infinite;
  z-index: 2;
}
.vn-char.thinking { animation: charThink 1.1s ease-in-out infinite; }
.vn-char.speaking { animation: charSpeak 0.9s ease-in-out infinite; }
.vn-char.happy { animation: charHappy 0.8s ease-in-out infinite; }
.vn-char.wave { animation: charWave 0.7s ease-in-out infinite; }
.vn-char.discovery { animation: charDiscovery 0.6s cubic-bezier(0.2, 1.4, 0.3, 1); }
@keyframes charIdle { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-6px); } }
@keyframes charThink { 0%,100% { transform: translateX(-50%) translateY(0) rotate(-2deg); } 50% { transform: translateX(-50%) translateY(-5px) rotate(2.5deg); } }
@keyframes charSpeak { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-4px) scale(1.015); } }
@keyframes charHappy { 0%,100% { transform: translateX(-50%) translateY(0) rotate(0); } 30% { transform: translateX(-50%) translateY(-16px) rotate(-5deg); } 60% { transform: translateX(-50%) translateY(-6px) rotate(4deg); } }
@keyframes charWave { 0%,100% { transform: translateX(-50%) rotate(-6deg); } 50% { transform: translateX(-50%) rotate(8deg) translateY(-4px); } }
@keyframes charDiscovery { 0% { transform: translateX(-50%) translateY(0) scale(1); } 50% { transform: translateX(-50%) translateY(-26px) scale(1.08); } 100% { transform: translateX(-50%) translateY(0) scale(1); } }
.vn-glowline {
  position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(77, 166, 255, 0.75), transparent);
  animation: glowline 3.6s ease-in-out infinite;
}
@keyframes glowline { 0%,100% { opacity: 0.25; } 50% { opacity: 0.9; } }
.vn-dialogue {
  margin-top: 14px;
  border: 1px solid var(--dialogue-bd); border-radius: 14px;
  background: var(--dialogue-bg);
  padding: 18px 22px; min-height: 148px;
  box-shadow: 0 12px 36px rgba(0, 0, 10, 0.3);
}
.vn-name {
  display: inline-block; font-weight: 900; font-size: 14.5px; color: var(--gold);
  border: 1px solid var(--gold-dim); border-radius: 6px;
  padding: 2px 12px; margin-bottom: 10px;
  background: var(--gold-tint);
}
.vn-text { font-size: 16px; line-height: 1.75; min-height: 52px; color: var(--vn-text); }
.vn-text .cursor { display: inline-block; width: 8px; height: 18px; background: var(--blue); margin-left: 3px; vertical-align: -3px; animation: blink 0.8s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.vn-next-hint { text-align: right; color: var(--muted); font-size: 12px; margin-top: 8px; animation: blink 1.4s steps(2) infinite; }
.vn-choices { display: flex; flex-direction: column; gap: 9px; margin-top: 14px; }
.vn-choice {
  cursor: pointer; text-align: left; width: 100%;
  background: var(--choice-bg); color: var(--text);
  border: 1px solid var(--msg-user-bd); border-radius: 10px;
  padding: 12px 16px; font-size: 14.5px; font-weight: 700;
  transition: all .14s;
}
.vn-choice:hover { border-color: var(--gold); background: var(--gold-tint); color: var(--text-strong); transform: translateX(4px); }
.vn-choice::before { content: "▸ "; color: var(--gold); }
.vn-freechat { margin-top: 14px; display: flex; gap: 10px; }
.vn-freechat .input { flex: 1; }
.vn-log { margin-top: 18px; max-height: 300px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; }
.msg { max-width: 86%; padding: 10px 15px; border-radius: 14px; font-size: 14.5px; line-height: 1.65; white-space: pre-wrap; word-break: break-word; }
.msg.user { align-self: flex-end; background: var(--msg-user-bg); border: 1px solid var(--msg-user-bd); border-bottom-right-radius: 4px; }
.msg.serena { align-self: flex-start; background: var(--msg-serena-bg); border: 1px solid var(--msg-serena-bd); border-bottom-left-radius: 4px; }
.msg .msg-who { font-size: 11px; font-weight: 900; color: var(--gold); display: block; margin-bottom: 3px; }

/* ============================================================
   질문 탐험 — 세 권의 책
   ============================================================ */
.explore-input-row { display: flex; gap: 10px; flex-wrap: wrap; }
.explore-input-row .input { flex: 1; min-width: 240px; font-size: 16px; }
.book-shelf { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 30px; perspective: 1200px; }
.book {
  cursor: pointer; position: relative;
  border: 1px solid var(--gold-dim); border-radius: 8px 14px 14px 8px;
  background: linear-gradient(90deg, #2b1f08 0%, #4a3a12 8%, #6b5317 14%, #4a3a12 22%, rgba(26, 20, 8, 0.95) 24%);
  min-height: 260px; padding: 26px 20px 20px 34px;
  box-shadow: 0 16px 40px rgba(0, 0, 10, 0.4);
  animation: bookRise .55s cubic-bezier(0.2, 1.2, 0.3, 1) backwards;
  transition: transform .18s, box-shadow .18s;
}
.book:nth-child(2) { animation-delay: .12s; }
.book:nth-child(3) { animation-delay: .24s; }
.book:hover { transform: translateY(-7px) rotate(-1deg); }
.book .book-icon { font-size: 30px; }
.book .book-title { font-family: var(--font-serif); font-size: 20px; font-weight: 700; color: #ffe9ad; margin: 10px 0 8px; }
.book .book-line { font-size: 13px; color: #cbbf9a; line-height: 1.6; }
.book .book-open { display: block; margin-top: 14px; font-size: 11px; letter-spacing: 0.2em; color: var(--gold); }
@keyframes bookRise { from { opacity: 0; transform: translateY(44px) rotate(2deg); } }

.spread {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-top: 26px;
  border: 1px solid var(--gold-dim); border-radius: 12px; overflow: hidden;
  background: var(--panel);
}
.spread-page { padding: 24px; min-height: 320px; }
.spread-page.left { border-right: 1px solid var(--gold-dim); background: var(--hover-tint); }
.spread-page h3 { color: var(--gold); font-family: var(--font-serif); margin: 0 0 12px; font-size: 18px; }
.spread-page ul { margin: 0 0 14px; padding-left: 18px; color: var(--text); font-size: 14px; line-height: 1.7; }
.spread-page li { margin-bottom: 5px; }
.spread-page .label { font-size: 11px; font-weight: 900; letter-spacing: 0.14em; color: var(--blue-soft); }
.rebuttal-box { border-left: 3px solid var(--danger); background: rgba(255, 90, 110, 0.07); padding: 12px 15px; border-radius: 0 10px 10px 0; margin-top: 12px; font-size: 14px; }
.timeline { margin-top: 22px; border-left: 2px solid var(--gold-dim); padding-left: 18px; display: flex; flex-direction: column; gap: 12px; }
.timeline-item { position: relative; font-size: 13.5px; color: var(--text); }
.timeline-item::before { content: ""; position: absolute; left: -24px; top: 6px; width: 10px; height: 10px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 10px rgba(255, 212, 90, 0.7); }
.timeline-item .t-when { font-family: var(--font-num); color: var(--muted); font-size: 11.5px; display: block; }
.binding-overlay {
  position: fixed; inset: 0; z-index: 115; display: grid; place-items: center;
  background: rgba(2, 3, 10, 0.88); animation: fadeIn .3s;
}
.binding-book {
  width: 200px; height: 280px; border-radius: 8px 18px 18px 8px;
  background: linear-gradient(90deg, #2b1f08 0%, #5a4410 10%, #80621a 16%, #5a4410 24%, #241a06 26%);
  box-shadow: 0 30px 80px rgba(0,0,10,0.8), 0 0 50px rgba(255, 212, 90, 0.3);
  animation: bindAnim 1.6s cubic-bezier(0.2, 0.9, 0.3, 1) forwards;
}
@keyframes bindAnim {
  0% { transform: rotate(90deg) scale(0.4); opacity: 0; }
  45% { transform: rotate(-8deg) scale(1.06); opacity: 1; }
  100% { transform: rotate(0) scale(1); }
}
.binding-label { text-align: center; margin-top: 26px; font-family: var(--font-serif); color: var(--gold); font-size: 18px; }

/* ============================================================
   서가(게시판)
   ============================================================ */
.board-tools { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 18px; }
.board-tools .input { flex: 1; min-width: 200px; }
.post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(255px, 1fr)); gap: 16px; }
.post-card {
  display: block; cursor: pointer; text-decoration: none !important;
  border: 1px solid var(--edge); border-radius: 6px 14px 14px 6px;
  background: linear-gradient(90deg, var(--blue-tint) 0%, var(--card-bg) 18%);
  padding: 18px 18px 16px 24px;
  transition: transform .15s, border-color .15s, box-shadow .15s;
  position: relative; overflow: hidden;
}
.post-card:hover { transform: translateY(-4px); border-color: var(--blue); }
.post-card .pc-cat { font-size: 10.5px; font-weight: 900; letter-spacing: 0.14em; color: var(--blue-soft); }
.post-card .pc-title { font-family: var(--font-serif); font-size: 17.5px; font-weight: 700; color: var(--text-strong); margin: 7px 0 6px; line-height: 1.35; }
.post-card .pc-excerpt { font-size: 12.8px; color: var(--muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.post-card .pc-meta { margin-top: 10px; font-size: 11.5px; color: var(--muted); display: flex; gap: 10px; flex-wrap: wrap; }
.post-card .pc-private { position: absolute; top: 10px; right: 10px; font-size: 11px; color: var(--gold); border: 1px solid var(--gold-dim); border-radius: 4px; padding: 1px 7px; }
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 24px; }
.pagination button { min-width: 38px; }

.post-detail .pd-title { font-family: var(--font-serif); font-size: clamp(24px, 4vw, 36px); font-weight: 900; color: var(--text-strong); margin: 4px 0 8px; line-height: 1.25; }
.pd-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--muted); font-size: 13px; border-bottom: 1px solid var(--edge); padding-bottom: 14px; }
.pd-body { margin-top: 18px; font-size: 15.5px; line-height: 1.8; color: var(--text); }
.pd-body h1, .pd-body h2, .pd-body h3 { color: var(--gold); font-family: var(--font-serif); line-height: 1.3; }
.pd-body h1 { font-size: 1.7em; } .pd-body h2 { font-size: 1.4em; } .pd-body h3 { font-size: 1.15em; }
.pd-body a { color: var(--blue-soft); text-decoration: underline; }
.pd-body blockquote { border-left: 3px solid var(--blue); margin: 10px 0; padding: 6px 16px; background: var(--blue-tint); color: var(--text); border-radius: 0 8px 8px 0; }
.pd-body code { background: var(--code-bg); border: 1px solid var(--msg-user-bd); border-radius: 4px; padding: 1px 6px; font-family: var(--font-num); font-size: 0.88em; }
.pd-body pre { background: var(--pre-bg); border: 1px solid var(--edge); border-radius: 8px; padding: 14px; overflow-x: auto; }
.pd-body pre code { background: none; border: none; padding: 0; }
.pd-body img { border-radius: 8px; max-width: 100%; }
.pd-body table { border-collapse: collapse; width: 100%; margin: 12px 0; }
.pd-body th, .pd-body td { border: 1px solid var(--edge-strong); padding: 7px 11px; font-size: 14px; }
.pd-body th { background: var(--th-bg); color: var(--blue-soft); }
.pd-body hr { border: none; border-top: 1px dashed var(--edge-strong); margin: 20px 0; }
.pd-body ul, .pd-body ol { padding-left: 22px; }

.attach-item { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border: 1px solid var(--edge); border-radius: 8px; margin-bottom: 8px; background: var(--att-bg); flex-wrap: wrap; }
.attach-item .attach-name { flex: 1; min-width: 150px; font-size: 13px; word-break: break-all; }
.preview-container { margin: -4px 0 12px; border: 1px solid var(--msg-user-bd); border-radius: 8px; overflow: hidden; background: var(--preview-bg); }
.preview-container iframe { width: 100%; height: 620px; border: none; background: #fff; display: block; }
.preview-container .preview-image { display: block; max-height: 480px; margin: 0 auto; cursor: zoom-in; }
.preview-container .preview-text { padding: 16px 18px; font-size: 14px; line-height: 1.7; color: var(--text); max-height: 520px; overflow-y: auto; }
.preview-head { display: flex; gap: 10px; align-items: center; padding: 8px 12px; background: var(--blue-tint); font-size: 12.5px; border-bottom: 1px solid var(--msg-user-bd); }
.preview-warning { color: var(--gold); font-size: 11.5px; }

.comment-box { border: 1px solid var(--edge); border-radius: 10px; padding: 13px 16px; margin-bottom: 12px; background: var(--comment-bg); }
.comment-head { display: flex; justify-content: space-between; color: var(--muted); font-size: 12.5px; margin-bottom: 6px; }
.comment-head b { color: var(--blue-soft); }
.comment-body { font-size: 14.5px; line-height: 1.7; }
.comment-body p { margin: 4px 0; }

/* ---------- 에디터 ---------- */
.editor-tabs { display: flex; gap: 4px; margin-bottom: 10px; }
.editor-tabs button {
  cursor: pointer; background: var(--hover-tint); border: 1px solid var(--field-bd);
  color: var(--muted); border-radius: 8px 8px 0 0; padding: 7px 16px; font-size: 13px; font-weight: 700;
}
.editor-tabs button.on { color: var(--gold); border-color: var(--gold); background: var(--gold-tint); }
.editor-area { min-height: 380px; font-family: var(--font-num); font-size: 14px; line-height: 1.7; }
.editor-preview { min-height: 380px; border: 1px solid var(--edge); border-radius: 8px; padding: 18px; background: var(--field-bg); font-size: 15px; line-height: 1.75; overflow-y: auto; max-height: 560px; }
.md-help { font-size: 12px; color: var(--muted); margin-top: 8px; }
.md-help code { color: var(--blue-soft); }
.dropzone {
  border: 2px dashed var(--msg-user-bd); border-radius: 10px;
  padding: 22px; text-align: center; color: var(--muted); font-size: 13.5px;
  cursor: pointer; transition: all .15s;
}
.dropzone:hover, .dropzone.drag { border-color: var(--gold); background: var(--gold-tint); color: var(--gold); }
.file-list { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.file-list .fl-item { display: flex; align-items: center; gap: 10px; font-size: 13.5px; border: 1px solid var(--edge); border-radius: 8px; padding: 8px 12px; background: var(--att-bg); }
.file-list .fl-item span { flex: 1; word-break: break-all; }

/* ---------- 테이블 (관리자) ---------- */
.table-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.tbl th { text-align: left; color: var(--blue-soft); font-size: 12px; letter-spacing: 0.08em; border-bottom: 1px solid var(--edge-strong); padding: 9px 10px; white-space: nowrap; }
table.tbl td { border-bottom: 1px solid var(--edge); padding: 10px; vertical-align: middle; }
table.tbl tr:hover td { background: var(--blue-tint); }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat-card { text-align: center; border: 1px solid var(--edge); border-radius: 12px; padding: 16px 8px; background: var(--card-bg); }
.stat-card .num { font-family: var(--font-num); font-size: 26px; font-weight: 700; color: var(--gold); }
.stat-card .lbl { font-size: 11.5px; color: var(--muted); margin-top: 3px; }
.status-pill { border-radius: 999px; padding: 2px 10px; font-size: 11.5px; font-weight: 800; white-space: nowrap; }
.status-pill.ok { background: rgba(90,224,160,0.12); color: var(--ok); border: 1px solid rgba(90,224,160,0.4); }
.status-pill.pending { background: var(--gold-tint); color: var(--gold); border: 1px solid var(--gold-dim); }
.status-pill.off { background: rgba(255,90,110,0.1); color: var(--danger); border: 1px solid rgba(255,90,110,0.4); }

/* ---------- 로그인/회원가입 ---------- */
.auth-wrap { max-width: 430px; margin: 30px auto; }
.auth-note { font-size: 12.5px; color: var(--muted); margin-top: 14px; line-height: 1.65; }

/* ---------- 빈 상태 ---------- */
.empty { text-align: center; padding: 44px 16px; color: var(--muted); }
.empty .empty-icon { font-size: 40px; display: block; margin-bottom: 10px; opacity: 0.7; }

/* ---------- 반응형 ---------- */
@media (max-width: 860px) {
  #site-header { flex-wrap: wrap; height: auto; padding: 8px 12px; gap: 8px; }
  #main-nav { order: 3; width: 100%; padding-bottom: 2px; }
  .spread { grid-template-columns: 1fr; }
  .spread-page.left { border-right: none; border-bottom: 1px solid var(--gold-dim); }
  .future-card-wrap { grid-template-columns: 1fr; }
  #view { padding: 18px 12px 46px; }
  .serena-float { width: 170px; }
}

/* ---------- 모션 축소 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}
body.motion-off .serena-float img,
body.motion-off .vn-char { animation: none !important; }
body.motion-off #scanlines { opacity: 0.12; }
body.motion-off .book, body.motion-off .door:hover, body.motion-off .post-card:hover { transform: none !important; }