/* 사라지기 전에 (Still, Here) — 파는 것 없는 한 장.
   한 메시지: 사라질 뻔한 생각이 살아남는 안도. 머릿속 한 줄을 적어 굳히기.
   파트 라우팅: color-craft(다크 latent→앰버) · font-craft(명조=사람의 생각) · motion-craft(흐림→또렷 굳음)
   규칙: transform/opacity/filter만 · prefers-reduced-motion 정지 · keep-all */

:root{
  --void:#0a0a0e; --void-2:#13131b; --veil:#1c1c26;
  --ash:#63626f;            /* 흩어져 죽어가는 생각(흐림) */
  --paper:#ece7dd;          /* 살아남은 글 */
  --paper-dim:#a59f95;
  --ember:#ffce85;          /* 시그널 — 생각이 굳어 되는 빛 */
  --ember-deep:#e7a24c;
  --line:rgba(236,231,221,.12);
  --serif:"AppleMyungjo","Nanum Myeongjo","Batang",serif;
  --sans:"Apple SD Gothic Neo","Pretendard",system-ui,"Malgun Gothic",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --wrap:760px;
}

*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
html:where(*){word-break:keep-all}
body{font-family:var(--sans);background:var(--void);color:var(--paper);line-height:1.8;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  background-image:radial-gradient(120% 80% at 50% -10%,rgba(255,206,133,.06),transparent 55%);}
:where(h1,h2){font-family:var(--serif);font-weight:400;letter-spacing:-.01em;line-height:1.22;text-wrap:balance}
:where(p){text-wrap:pretty}
a{color:inherit}
::selection{background:rgba(255,206,133,.28);color:#1a1206}
:focus-visible{outline:2px solid var(--ember);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ── 떠다니는 죽은 생각들(ambient) ── */
.ghosts{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.ghost{position:absolute;font-family:var(--serif);color:var(--ash);opacity:0;
  font-size:clamp(.9rem,2.4vw,1.35rem);white-space:nowrap;filter:blur(1.5px);
  animation:drift linear infinite}
@keyframes drift{
  0%{opacity:0;transform:translateY(40px) scale(.98)}
  12%{opacity:.5}
  80%{opacity:.22}
  100%{opacity:0;transform:translateY(-120px) scale(1.02)}
}

/* ── 히어로(전부 여기서 일어난다) ── */
.hero{position:relative;z-index:1;min-height:100svh;display:flex;flex-direction:column;
  justify-content:center;padding:80px 0 64px}
.eyebrow{font-family:var(--sans);font-size:.72rem;letter-spacing:.32em;text-transform:uppercase;
  color:var(--ember);opacity:.85;margin-bottom:22px}
.hero h1{font-size:clamp(2.6rem,8vw,4.6rem)}
.hero h1 .em{color:var(--ember);position:relative}
.hero .sub{margin-top:20px;color:var(--paper-dim);font-size:clamp(1.05rem,2.4vw,1.3rem);max-width:28ch}

/* 입력 */
.compose{margin-top:44px}
.compose label{display:block;font-family:var(--sans);font-size:.8rem;letter-spacing:.04em;
  color:var(--paper-dim);margin-bottom:10px}
#think{width:100%;min-height:64px;resize:none;font-family:var(--sans);font-size:1.15rem;line-height:1.6;
  color:var(--paper);background:transparent;border:0;border-bottom:1px solid var(--line);
  padding:8px 2px;transition:border-color .3s}
#think::placeholder{color:#4d4c58}
#think:focus{outline:none;border-bottom-color:var(--ember)}

/* 미리보기 = 아직 머릿속(흐림) → 굳으면 또렷 */
.thought-stage{margin-top:30px;min-height:2.4em;display:flex;align-items:center}
.thought{font-family:var(--serif);font-size:clamp(1.6rem,5vw,2.7rem);line-height:1.35;
  color:var(--ash);filter:blur(7px);opacity:.42;
  transition:filter 1.15s var(--ease),opacity 1.15s var(--ease),color 1.15s var(--ease)}
.thought.solid{color:var(--paper);filter:blur(0);opacity:1}
.thought.flare{animation:flare 1.5s var(--ease)}
@keyframes flare{
  0%{text-shadow:0 0 0 rgba(255,206,133,0)}
  34%{text-shadow:0 0 32px rgba(255,206,133,.6),0 0 70px rgba(255,206,133,.28)}
  100%{text-shadow:0 0 18px rgba(255,206,133,.12)}
}
.thought.empty{color:#3f3e49}

.compose-row{margin-top:26px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.keep{font-family:var(--sans);font-weight:600;font-size:.96rem;color:var(--void);
  background:var(--ember);border:0;border-radius:999px;padding:13px 28px;cursor:pointer;
  transition:transform .16s var(--ease),box-shadow .3s,filter .2s}
.keep:hover{filter:brightness(1.06);box-shadow:0 14px 38px -14px rgba(255,206,133,.6)}
.keep:active{transform:translateY(1px) scale(.99)}
.keep:disabled{opacity:.4;cursor:default;box-shadow:none}
.kept-msg{font-family:var(--serif);font-size:1.05rem;color:var(--ember);opacity:0;transition:opacity .6s}
.kept-msg.show{opacity:1}

/* ── 척추: 감정 → 문제 → 해결 ── */
.section{position:relative;z-index:1;padding:clamp(64px,12vw,128px) 0;border-top:1px solid var(--line)}
.section .label{font-family:var(--sans);font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--paper-dim);opacity:.7;margin-bottom:20px}
.section h2{font-size:clamp(1.7rem,4.6vw,2.7rem)}
.section p{margin-top:18px;font-size:clamp(1.05rem,2.2vw,1.22rem);color:var(--paper-dim);max-width:42ch}
.section p .hi{color:var(--paper)}
.section.solve h2 .em,.section p .em{color:var(--ember)}

/* 만든이의 고백 */
.confess{position:relative;z-index:1;padding:clamp(64px,12vw,128px) 0;border-top:1px solid var(--line)}
.confess blockquote{font-family:var(--serif);font-size:clamp(1.4rem,3.6vw,2.1rem);line-height:1.5;
  color:var(--paper);max-width:24ch}
.confess blockquote .em{color:var(--ember)}
.confess .by{margin-top:24px;font-family:var(--sans);font-size:.9rem;color:var(--paper-dim)}

/* 살아남은 것(지난 생각) */
.remained{position:relative;z-index:1;padding:clamp(64px,12vw,128px) 0;border-top:1px solid var(--line)}
.remained .label{font-family:var(--sans);font-size:.72rem;letter-spacing:.28em;text-transform:uppercase;color:var(--ember);margin-bottom:20px}
.survived{display:grid;gap:14px;margin-top:6px}
.survived-item{font-family:var(--serif);font-size:clamp(1.2rem,3vw,1.7rem);color:var(--paper);
  padding-left:18px;border-left:2px solid rgba(255,206,133,.4)}
.survived-empty{color:var(--paper-dim);font-family:var(--sans);font-size:1rem}
.count{margin-top:26px;font-family:var(--sans);font-size:.92rem;color:var(--paper-dim)}
.count b{color:var(--ember)}

/* ── 푸터 ── */
.foot{position:relative;z-index:1;border-top:1px solid var(--line);padding:48px 0 64px;
  font-family:var(--sans);font-size:.82rem;color:#73727e;line-height:1.9}
.foot .mark{display:inline-flex;align-items:center;gap:9px;color:var(--paper);margin-bottom:14px}
.foot .mark b{font-family:var(--serif);font-weight:400;font-size:1.1rem;letter-spacing:.02em}
.foot a{color:var(--paper-dim);text-decoration:underline;text-underline-offset:3px}

/* ── reveal ── */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .ghosts{display:none}
  .thought{filter:none;opacity:1;color:var(--paper);transition:none}
  .reveal{opacity:1;transform:none;transition:none}
}