/* ==========================================================================
   LẠC BIÊN (落編) — Teaser site stylesheet
   Design system theo guideline vault: Rakuben-Haibutsu-Teaser-WebsiteDesign.txt
   Palette: #050505 Pitch Black · #8A0303 Blood Red · #B5944B Kintsugi Gold ·
            #2A2A2A Ink Grey
   Atmosphere: claustrophobic, minimal, glitchy
   ========================================================================== */

:root{
  --black:#050505;
  --blood:#8A0303;
  --blood-lt:#C41E1E;
  --gold:#B5944B;
  --gold-lt:#E0C177;
  --ink:#2A2A2A;
  --paper:#E8E2D4;
  --dim:rgba(232,226,212,.55);

  --serif:'Shippori Mincho','Noto Serif JP',serif;
  --jpserif:'Noto Serif JP','Shippori Mincho',serif;
  --sans:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
  --gut:clamp(20px,5vw,80px);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:auto}
body{
  margin:0;background:var(--black);color:var(--paper);
  font-family:var(--sans);font-weight:300;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.locked{overflow:hidden;height:100vh}
img{max-width:100%;display:block}
a{color:var(--gold);text-decoration:none}
a:hover{color:var(--gold-lt)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============================== GATE ============================== */
.gate{
  position:fixed;inset:0;z-index:200;
  background:var(--black);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .9s var(--ease),visibility .9s;
}
.gate.gone{opacity:0;visibility:hidden;pointer-events:none}
.gate__inner{text-align:center;padding:0 24px;max-width:560px}
.gate__line{
  font-family:var(--jpserif);font-size:clamp(24px,5vw,40px);
  letter-spacing:.42em;color:var(--ink);
  margin:0 0 6px;text-indent:.42em;
  animation:breathe 5s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:.35}50%{opacity:.85}}
.gate__vi{
  font-size:13px;color:var(--dim);letter-spacing:.16em;
  text-transform:uppercase;margin:0 0 40px;
}
.gate__btn{
  position:relative;background:none;border:1px solid rgba(181,148,75,.4);
  color:var(--gold);font-family:var(--serif);font-size:14px;
  letter-spacing:.2em;padding:17px 34px;cursor:pointer;
  transition:.45s var(--ease);overflow:hidden;
}
.gate__btn::after{
  content:'';position:absolute;inset:0;background:var(--blood);
  transform:scaleY(0);transform-origin:bottom;transition:transform .45s var(--ease);z-index:-1;
}
.gate__btn:hover{border-color:var(--blood-lt);color:var(--paper)}
.gate__btn:hover::after{transform:scaleY(1)}
.gate__hint{font-size:11px;color:rgba(232,226,212,.28);letter-spacing:.1em;margin:22px 0 0}

/* ============================== VEINS CANVAS ============================== */
.veins{position:fixed;inset:0;z-index:5;pointer-events:none;opacity:.5;mix-blend-mode:screen}

/* ============================== SECTION 1 — THE TRAP ============================== */
.trap{
  position:relative;
  height:100vh;height:100svh;height:100dvh;      /* 🔴 ưu tiên dvh: màn thấp KHÔNG bị cắt */
  min-height:100svh;                             /* 🔴 CẤM min-height cứng 600px — viewport 569px ⇒ tràn 31px, overflow CẮT CHỮ */
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;background:var(--black);z-index:10;
  padding:24px 0;box-sizing:border-box;
}
.trap__thread-wrap{
  position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:2px;height:100%;display:flex;justify-content:center;z-index:1;
}
.trap__thread{
  width:2px;height:38vh;transform-origin:top center;
  background:linear-gradient(to bottom,transparent,#C00C0C 12%,#F03A3A 55%,#FF8A6A 84%,transparent);
  box-shadow:
    0 0 6px rgba(255,70,70,1),
    0 0 18px rgba(235,45,45,.95),
    0 0 40px rgba(190,15,15,.8),
    0 0 90px rgba(138,3,3,.5);
  will-change:transform;
  animation:threadPulse 3.4s ease-in-out infinite;
}
@keyframes threadPulse{
  0%,100%{filter:brightness(1)}
  50%{filter:brightness(1.28)}
}
.trap__body{position:relative;z-index:3;text-align:center;padding:0 24px}
.trap__kanji{
  font-family:var(--jpserif);font-size:clamp(13px,1.6vw,17px);
  letter-spacing:.72em;color:var(--gold);opacity:.6;
  margin:0 0 20px;text-indent:.72em;
}
.trap__title{
  font-family:var(--serif);font-weight:800;
  /* 🔴 trần = min(13vw, 26svh): màn THẤP (569px) ⇒ title bị chặn theo CHIỀU CAO,
     không phình 164px đè xuống dòng quote */
  font-size:clamp(44px, min(13vw, 26svh), 164px);
  line-height:.94;
  letter-spacing:.03em;margin:0;
  color:var(--paper);
  text-shadow:0 0 60px rgba(181,148,75,.16);
}
/* #1 FIX: chữ bị vỡ dòng + trồi lên nền đỏ khi scroll.
   · .trap__quote có <br> sẵn ⇒ mỗi câu PHẢI nằm trên 1 dòng, CẤM wrap tự do.
   · Nâng z-index + nền tối riêng để chữ nổi TRÊN sợi chỉ đỏ / kintsugi. */
.trap__body{
  position:relative;z-index:8;                 /* trên thread(z1) + kintsugi(z2) + vignette(z2) */
  text-align:center;padding:0 24px;
  isolation:isolate;
}
.trap__body::before{                          /* tấm chắn mờ sau khối chữ */
  content:'';position:absolute;inset:-36px -18%;
  background:radial-gradient(ellipse at 50% 50%,rgba(5,5,5,.94) 30%,rgba(5,5,5,.72) 58%,transparent 78%);
  z-index:-1;pointer-events:none;
}
.trap__quote { font-family: var(--serif);
  font-size: clamp(14px, min(2.1vw, 3.4svh), 22px);
  line-height: 1.7; color: var(--dim);
  width: min(94vw, 1100px); max-width: min(94vw, 1100px);
  margin: clamp(14px, 4svh, 34px) auto 0; text-align: center;
  overflow-wrap: normal; word-break: keep-all; }
.trap__quote br{display:none}                 /* bỏ <br> gốc, để text-wrap tự cân */
.trap__quote span { display: block; margin: 0 auto; text-align: center;
  white-space: nowrap; }  /* mỗi câu 1 dòng, không wrap */
@media (max-width:900px){
  .trap__quote span{white-space:normal}
}
.trap__scroll{
  position:absolute;bottom:38px;left:50%;transform:translateX(-50%);
  z-index:3;text-align:center;color:rgba(232,226,212,.3);
}
.trap__scroll span{font-size:10px;letter-spacing:.42em;display:block;margin-bottom:11px}
.trap__scroll i{display:block;width:1px;height:44px;margin:0 auto;background:linear-gradient(var(--ink),transparent)}
.trap__vig{
  position:absolute;inset:0;z-index:2;pointer-events:none;
  background:radial-gradient(ellipse at 50% 50%,transparent 22%,rgba(5,5,5,.72) 78%,var(--black) 100%);
}
/* Kintsugi vein network — vàng, mờ dần 2 đầu, sáng lên theo scroll */
.trap__kintsugi{
  position:absolute;inset:0;width:100%;height:100%;
  z-index:2;pointer-events:none;opacity:.72;mix-blend-mode:screen;
  filter:drop-shadow(0 0 5px rgba(230,200,130,.7)) saturate(1.5) brightness(1.35);
}
.trap__kintsugi path{stroke-dasharray:1400;stroke-dashoffset:1400;stroke-width:1.9}
.trap__kintsugi.lit path{
  animation:kgdraw 2.6s var(--ease) forwards;
}
@keyframes kgdraw{to{stroke-dashoffset:0}}

/* glitch state on title */
[data-glitch]{position:relative}
[data-glitch].glitch::before,
[data-glitch].glitch::after{
  content:attr(data-text);position:absolute;left:0;top:0;width:100%;
}
[data-glitch].glitch::before{color:var(--blood-lt);clip-path:inset(0 0 58% 0);animation:gl1 .42s steps(2) 3}
[data-glitch].glitch::after{color:#22d3ee;clip-path:inset(52% 0 0 0);animation:gl2 .42s steps(2) 3}
@keyframes gl1{0%,100%{transform:translate(0)}33%{transform:translate(-5px,-2px)}66%{transform:translate(4px,1px)}}
@keyframes gl2{0%,100%{transform:translate(0)}33%{transform:translate(5px,2px)}66%{transform:translate(-4px,-1px)}}

/* ============================== SECTION 2 — THE SHATTER ============================== */
.shatter{
  position:relative;min-height:100vh;
  background:var(--black);z-index:9;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:clamp(50px,8vh,110px) var(--gut);
}
.shatter__stage{position:relative;width:100%;max-width:1120px;aspect-ratio:16/9}
.shatter__video-wrap{position:absolute;inset:0;overflow:hidden;background:#000}
.shatter__video{width:100%;height:100%;object-fit:cover;display:block}
/* Scanline + vignette để video hoà vào nền đen (chống mảng trắng chói) */
.shatter__scan{
  position:absolute;inset:0;pointer-events:none;z-index:2;
  background:
    repeating-linear-gradient(0deg,rgba(0,0,0,.13) 0 1px,transparent 1px 3px),
    radial-gradient(ellipse at 50% 50%,transparent 46%,rgba(5,5,5,.5) 88%,rgba(5,5,5,.8) 100%);
}
/* Sumi-e ink bleeding frame overlay */
.shatter__frame{
  position:absolute;inset:-2px;pointer-events:none;
  box-shadow:inset 0 0 120px 30px rgba(5,5,5,.9),inset 0 0 260px 90px rgba(5,5,5,.6);
}
.shatter__frame::before,
.shatter__frame::after{
  content:'';position:absolute;left:-6%;right:-6%;height:26%;pointer-events:none;
  background:radial-gradient(ellipse at 22% 0%,rgba(5,5,5,.98) 0%,transparent 62%),
             radial-gradient(ellipse at 74% 4%,rgba(5,5,5,.95) 0%,transparent 55%);
}
.shatter__frame::before{top:-8%}
.shatter__frame::after{bottom:-8%;transform:scaleY(-1)}

/* Kintsugi shards */
.shards{position:absolute;inset:0;z-index:4;pointer-events:none}
.shard{
  position:absolute;background:var(--black);
  will-change:transform,opacity;
}
.shard i{
  position:absolute;inset:0;
  box-shadow:inset 0 0 0 1.5px rgba(181,148,75,.85),inset 0 0 22px rgba(224,193,119,.42);
  opacity:0;
}
.shard.hot i{opacity:1}

.shatter__cue{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:6;pointer-events:none}
.shatter__cue i{
  display:block;width:2px;height:80px;
  background:linear-gradient(transparent,var(--blood-lt),transparent);
  animation:cuepulse 1.5s ease-in-out infinite;
}
@keyframes cuepulse{0%,100%{opacity:.25;transform:scaleY(.7)}50%{opacity:.9;transform:scaleY(1)}}

.shatter__caption{
  max-width:760px;text-align:center;margin-top:clamp(30px,5vh,58px);
  font-family:var(--serif);font-size:clamp(14px,1.7vw,18px);
  line-height:2;color:var(--dim);
}
.shatter__caption p{margin:0 0 6px}

/* ============================== SECTION 3 — THE ABYSS ============================== */
.abyss{position:relative;z-index:8;padding:clamp(70px,12vh,150px) var(--gut) 0}
.abyss__bg{
  position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(ellipse at 50% 0%,rgba(138,3,3,.13),transparent 58%),
    radial-gradient(ellipse at 22% 88%,rgba(42,42,42,.5),transparent 60%),
    radial-gradient(ellipse at 82% 72%,rgba(181,148,75,.055),transparent 55%),
    var(--black);
}
.abyss__inner{max-width:1080px;margin:0 auto;text-align:center}
.abyss__logo{
  width:min(320px,58vw);margin:0 auto clamp(26px,4vh,46px);
  opacity:.92;filter:drop-shadow(0 0 26px rgba(181,148,75,.16));
}
.abyss__title{
  font-family:var(--serif);font-weight:800;
  font-size:clamp(38px,8.4vw,104px);letter-spacing:.09em;
  margin:0;color:var(--paper);
}
.abyss__title .ch{display:inline-block;opacity:0;transform:translateY(20px) rotate(3deg)}
.abyss__tag{
  font-family:var(--serif);font-size:clamp(14px,1.9vw,20px);
  color:var(--gold);letter-spacing:.05em;margin:18px 0 clamp(46px,7vh,80px);
}

.abyss__grid{
  display:grid;gap:1px;background:var(--black);
  border:1px solid rgba(181,148,75,.13);
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  text-align:left;margin-bottom:clamp(50px,8vh,86px);
}
.card{
  background:var(--black);padding:clamp(24px,3.4vw,42px);
  border-right:1px solid rgba(181,148,75,.11);
  transition:background .5s var(--ease);
}
.card:last-child{border-right:0}
.card:hover{background:#0a0908}
.card h3{
  font-family:var(--serif);font-size:17px;font-weight:600;
  color:var(--gold);margin:0 0 14px;letter-spacing:.02em;
}
.card h3 span{font-family:var(--jpserif);font-size:13px;color:rgba(181,148,75,.5);margin-left:7px;letter-spacing:.12em}
.card p{font-size:14px;line-height:1.95;color:var(--dim);margin:0}

/* FORM */
.abyss__form{
  display:flex;gap:0;max-width:560px;margin:0 auto;
  border:1px solid rgba(232,226,212,.16);transition:.4s var(--ease);
}
.abyss__form:focus-within{border-color:var(--gold);box-shadow:0 0 0 1px rgba(181,148,75,.2),0 0 40px rgba(181,148,75,.07)}
.abyss__form input{
  flex:1;background:none;border:0;outline:0;padding:18px 22px;
  color:var(--paper);font-family:var(--sans);font-size:14px;
}
.abyss__form input::placeholder{color:rgba(232,226,212,.28)}
.abyss__form button{
  position:relative;background:rgba(181,148,75,.09);border:0;
  border-left:1px solid rgba(181,148,75,.26);
  color:var(--gold);font-family:var(--serif);font-size:13px;
  letter-spacing:.13em;padding:18px 28px;cursor:pointer;
  transition:.4s var(--ease);overflow:hidden;white-space:nowrap;
}
.abyss__form button::after{
  content:'';position:absolute;inset:0;background:var(--blood);
  transform:scaleX(0);transform-origin:left;transition:transform .42s var(--ease);z-index:-1;
}
.abyss__form button:hover{color:var(--paper)}
.abyss__form button:hover::after{transform:scaleX(1)}
.abyss__form button.glitching span{animation:bleed .36s steps(2) 2}
@keyframes bleed{
  0%,100%{transform:translate(0);text-shadow:none}
  50%{transform:translate(-2px,1px);text-shadow:3px 0 var(--blood-lt),-3px 0 #22d3ee}
}

.abyss__note{font-size:12.5px;letter-spacing:.08em;color:var(--gold);min-height:20px;margin:16px 0 0}

.abyss__stats{
  display:flex;justify-content:center;gap:clamp(28px,7vw,74px);
  flex-wrap:wrap;margin:clamp(48px,8vh,84px) 0 clamp(40px,6vh,64px);
}
.abyss__stats div{text-align:center}
.abyss__stats b{
  display:block;font-family:var(--serif);font-size:19px;
  color:var(--paper);font-weight:600;letter-spacing:.03em;
}
.abyss__stats span{font-size:11px;letter-spacing:.2em;color:rgba(232,226,212,.32);text-transform:uppercase}

/* FOOTER */
.abyss__foot{
  border-top:1px solid rgba(232,226,212,.09);
  padding:38px 0 44px;text-align:center;
  font-size:11.5px;letter-spacing:.12em;color:rgba(232,226,212,.3);
}
.abyss__platforms{display:flex;justify-content:center;gap:34px;margin-bottom:22px}
.abyss__platforms span{
  font-family:var(--serif);font-size:12px;letter-spacing:.24em;
  color:rgba(232,226,212,.22);
}
.abyss__foot p{margin:0 0 6px}
.abyss__mini{font-size:11px;letter-spacing:.1em}

/* ============================== SOUNDBAR ============================== */
.soundbar{
  position:fixed;left:18px;bottom:18px;z-index:120;
  display:flex;align-items:center;gap:13px;
  padding:10px 16px 10px 11px;
  background:rgba(5,5,5,.82);backdrop-filter:blur(9px);
  border:1px solid rgba(181,148,75,.2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:.6s var(--ease);
}
.soundbar.on{opacity:1;visibility:visible;transform:translateY(0)}
.soundbar button{
  background:none;border:0;color:var(--gold);cursor:pointer;
  display:flex;padding:5px;transition:.3s;
}
.soundbar button:hover{color:var(--gold-lt)}
.soundbar__meta{line-height:1.35}
.soundbar__meta b{display:block;font-family:var(--serif);font-size:11.5px;color:var(--paper);font-weight:500;letter-spacing:.06em}
.soundbar__meta span{font-size:9.5px;letter-spacing:.16em;color:rgba(232,226,212,.34);text-transform:uppercase}
.soundbar__bars{display:flex;align-items:flex-end;gap:2px;height:15px}
.soundbar__bars i{
  width:2px;background:var(--gold);height:22%;opacity:.75;
  animation:eq .9s ease-in-out infinite;
}
.soundbar__bars i:nth-child(1){animation-delay:0s}
.soundbar__bars i:nth-child(2){animation-delay:.18s}
.soundbar__bars i:nth-child(3){animation-delay:.36s}
.soundbar__bars i:nth-child(4){animation-delay:.1s}
.soundbar__bars i:nth-child(5){animation-delay:.28s}
.soundbar.muted .soundbar__bars i{animation-play-state:paused;height:14%}
@keyframes eq{0%,100%{height:22%}50%{height:100%}}

/* ============================== GLOBAL EROSION BAR ============================== */
.erosion{
  position:fixed;top:50%;right:14px;transform:translateY(-50%);
  z-index:60;pointer-events:none;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  opacity:0;transition:opacity .8s var(--ease);
}
.erosion.on{opacity:1}
.erosion__track{
  width:11px;height:42vh;
  border:1px solid rgba(181,148,75,.28);
  background:rgba(5,5,5,.7);
  display:flex;flex-direction:column;justify-content:flex-end;
  backdrop-filter:blur(2px);
}
.erosion__fill{
  width:100%;height:17.4%;
  background:linear-gradient(to top,#3A0101,var(--blood));
  box-shadow:inset 0 0 9px rgba(138,3,3,.75);
  transition:height .9s var(--ease);
}
.erosion__pct{font-size:10px;letter-spacing:.14em;color:var(--gold)}
.erosion__label{
  writing-mode:vertical-rl;font-size:9px;letter-spacing:.3em;
  color:var(--dim);text-transform:uppercase;
}
.erosion__fill.pulse{animation:erosionPulse 1s var(--ease)}
@keyframes erosionPulse{
  0%{box-shadow:inset 0 0 9px rgba(138,3,3,.75)}
  45%{box-shadow:inset 0 0 22px rgba(196,30,30,1),0 0 16px rgba(138,3,3,.9)}
  100%{box-shadow:inset 0 0 9px rgba(138,3,3,.75)}
}

/* ============================== SCREEN GLITCH OVERLAY ============================== */
/* 🔴 CHỈ áp cho overlay #glitch (id) — CẤM selector `.glitch` trần,
   vì `.trap__title.glitch` (hiệu ứng chữ) sẽ khớp luôn ⇒ overlay dải đỏ
   position:fixed/z-index:190 phủ LÊN CHỮ khi cuộn qua p≈0.62–0.74 */
#glitch{
  position:fixed;inset:0;z-index:190;pointer-events:none;opacity:0;
  background:
    repeating-linear-gradient(0deg,rgba(138,3,3,.5) 0 1px,transparent 1px 3px),
    rgba(5,5,5,.72);
  mix-blend-mode:screen;
}

/* ============================== SECTION 3.5 — THE INTERROGATION ============================== */
.interro{
  position:relative;z-index:10;overflow:hidden;
  padding:clamp(90px,13vw,170px) var(--gut);
  background:var(--black);
}
.interro__fog{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%,rgba(42,42,42,.6),transparent 62%),
    radial-gradient(ellipse 70% 50% at 50% 100%,rgba(138,3,3,.14),transparent 60%);
}
.interro__inner{position:relative;z-index:1;max-width:720px;margin:0 auto}
.interro__eyebrow{
  font-size:10px;letter-spacing:.34em;text-transform:uppercase;
  color:var(--blood-lt);margin:0 0 14px;
}
.interro__title{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(1.5rem,4.6vw,2.6rem);line-height:1.4;
  margin:0 0 12px;color:var(--paper);
}
.interro__title em{color:var(--gold);font-style:normal}
.interro__sub{color:var(--dim);font-size:.92rem;margin:0 0 58px}
.q{margin-bottom:clamp(44px,7vw,70px)}
.q:last-of-type{margin-bottom:0}
.q__num{
  font-size:10px;letter-spacing:.32em;text-transform:uppercase;
  color:var(--blood-lt);margin:0 0 12px;
}
.q__text{
  font-family:var(--serif);font-size:clamp(1.02rem,3.2vw,1.42rem);
  line-height:1.65;color:var(--paper);margin:0 0 24px;
}
.q__opts{display:grid;gap:10px}
.opt{
  position:relative;text-align:left;cursor:pointer;
  background:rgba(42,42,42,.22);
  border:1px solid rgba(181,148,75,.18);
  color:var(--paper);font-family:var(--sans);font-weight:300;
  font-size:.9rem;line-height:1.55;padding:15px 18px;
  transition:border-color .22s var(--ease),background .22s var(--ease),transform .14s;
  overflow:hidden;
}
.opt b{
  display:inline-block;min-width:22px;
  color:var(--gold);font-weight:600;margin-right:10px;
}
.opt::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--blood);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.opt:hover{
  border-color:rgba(138,3,3,.72);
  background:rgba(138,3,3,.14);
  animation:optGlitch .3s steps(2) infinite;
}
.opt:hover::before{transform:scaleX(1);box-shadow:0 0 12px rgba(138,3,3,.9)}
@keyframes optGlitch{
  0%{transform:translate(0,0)}25%{transform:translate(-1.5px,.5px)}
  50%{transform:translate(1.5px,-.5px)}75%{transform:translate(-.5px,-1px)}
  100%{transform:translate(0,0)}
}
.opt.picked{border-color:var(--gold);background:rgba(181,148,75,.15)}
.opt.picked::before{transform:scaleX(1);background:var(--gold)}
.interro__bar{
  margin-top:clamp(40px,6vw,60px);height:1px;
  background:rgba(181,148,75,.2);position:relative;
}
.interro__bar-fill{
  position:absolute;left:0;top:0;bottom:0;width:0%;
  background:var(--blood);box-shadow:0 0 10px rgba(138,3,3,.85);
  transition:width .5s var(--ease);
}

/* ============================== SECTION 4 — THE CONTRACT ============================== */
.contract{
  position:relative;z-index:10;overflow:hidden;
  padding:clamp(86px,12vw,150px) var(--gut) clamp(60px,9vw,110px);
  background:radial-gradient(ellipse 60% 46% at 50% 34%,rgba(138,3,3,.14),transparent 66%),var(--black);
  text-align:center;
}
.contract__inner{position:relative;z-index:1;max-width:620px;margin:0 auto}
.contract__eyebrow{
  font-size:10px;letter-spacing:.36em;text-transform:uppercase;
  color:var(--dim);margin:0 0 20px;
}
.contract__vision{
  font-family:var(--serif);font-weight:400;color:var(--paper);
  font-size:clamp(1.45rem,5.6vw,2.9rem);letter-spacing:.13em;line-height:1.36;
  margin:0 0 10px;text-shadow:0 0 34px rgba(138,3,3,.55);
}
.contract__glyph{
  font-family:var(--jpserif);color:var(--gold);
  font-size:clamp(.8rem,2.7vw,1.04rem);letter-spacing:.28em;
  margin:0 0 44px;
}
.code-seal{
  display:block;margin:0 auto 22px;max-width:100%;
  font-family:var(--jpserif);
  font-size:clamp(.9rem,3.2vw,1.24rem);letter-spacing:.2em;color:var(--gold);
  border-top:1px solid rgba(181,148,75,.28);
  border-bottom:1px solid rgba(181,148,75,.28);
  padding:15px 6px;
}
.contract .abyss__stats{margin-top:clamp(50px,8vw,86px)}

/* ============================== RESPONSIVE ============================== */
@media (max-width:760px){
  .soundbar{left:12px;bottom:12px;padding:8px 12px 8px 9px}
  .soundbar__meta{display:none}
  .abyss__form{flex-direction:column}
  .abyss__form button{border-left:0;border-top:1px solid rgba(181,148,75,.26);padding:16px}
  .trap__scroll{bottom:24px}
  .erosion{right:8px;gap:7px}
  .erosion__track{width:9px;height:34vh}
  .erosion__label{display:none}
  .interro{padding-left:18px;padding-right:18px}
  .interro__sub{margin-bottom:40px}
  .q{margin-bottom:42px}
  .opt{padding:14px 15px;font-size:.86rem}
  /* 🔴 #2 — TRẠNG THÁI KHOÁ: kết quả thần ấn KHÔNG được lộ trước khi trả lời đủ 3 câu.
   HTML để "? ? ?" + class .is-locked; JS gỡ class khi reveal. */
.contract__vision.is-locked{
  color:rgba(250,250,250,.26);
  letter-spacing:.34em;
  text-shadow:none;
  filter:blur(1.1px);
  user-select:none;
}
.contract__glyph.is-locked{
  color:rgba(212,175,55,.28);
  letter-spacing:.34em;
  filter:blur(1px);
  user-select:none;
}

.contract__glyph{margin-bottom:32px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* ============================== #3 LOGO MỚI (dải gradient xám→đen) ============================== */
/* Logo layer dark có dải gradient SÁNG→TỐI; trên nền đen cần tăng tương phản nhẹ
   để dải xám không bị chìm, nhưng KHÔNG làm cháy chữ vàng. */
.abyss__logo--grad{
  filter:brightness(1.06) contrast(1.08) drop-shadow(0 2px 26px rgba(0,0,0,.9));
  max-width:min(760px,88vw);
}

/* ============================== #6 CREDITS kiểu Square Enix ============================== */
/* Cách trình bày Square Enix (rs3r): mỗi dòng = VAI TRÒ (trái) → TÊN (phải) */
.credits{
  max-width:640px;margin:clamp(46px,7vh,78px) auto 0;
  padding-top:clamp(30px,5vh,52px);
  border-top:1px solid rgba(181,148,75,.16);
  text-align:left;
}
.credits__row{
  display:flex;align-items:baseline;justify-content:space-between;gap:18px;
  padding:9px 0;
  border-bottom:1px solid rgba(181,148,75,.07);
}
.credits__row:last-child{border-bottom:0}
.credits__row b{
  font-family:var(--sans);font-weight:500;
  font-size:9.5px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--gold);opacity:.85;white-space:nowrap;flex:0 0 auto;
}
.credits__row span{
  font-family:var(--serif);font-size:clamp(13px,1.6vw,17px);
  color:rgba(232,226,212,.9);letter-spacing:.04em;text-align:right;
}

/* ============================== #7 NÚT LÊN ĐẦU TRANG ============================== */
.to-top{
  position:fixed;left:50%;transform:translateX(-50%) translateY(12px);
  bottom:28px;z-index:60;
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 22px;border-radius:999px;cursor:pointer;
  font-family:var(--sans);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--kintsugi);background:rgba(8,6,5,.72);
  border:1px solid rgba(181,148,75,.42);backdrop-filter:blur(8px);
  opacity:0;pointer-events:none;transition:opacity .35s ease,transform .35s ease,border-color .3s ease;
}
.to-top.on{opacity:1;transform:translateY(0);pointer-events:auto}
.to-top span{font-size:13px;line-height:1}
.to-top:hover{background:rgba(138,3,3,.28);border-color:var(--blood-lt);color:var(--paper)}

/* ============================== #8 THỐNG KÊ LINH HỒN ĐÃ LẬP KHẾ ƯỚC ============================== */
.lead-stat{
  display:block;margin-top:16px;
  font-family:var(--sans);font-size:11.5px;letter-spacing:.1em;
  color:rgba(181,148,75,.85);
}

@media (max-width:760px){
  .to-top{bottom:16px;padding:10px 17px;font-size:10px}
}