/* 남길말 — 화면 스타일.
   조용해야 한다. 이 서비스를 쓰는 순간의 사람은 들뜨지 않았다.
   장식보다 읽히는 것을 먼저 둔다. */

:root {
  --bg: #fbfaf8;
  --fg: #1c1b19;
  --muted: #6b6862;
  --line: #e3e0d9;
  --card: #ffffff;
  --accent: #2f5d50;
  --accent-soft: #eaf1ee;
  --warn: #8a4b2a;
  --warn-soft: #fbf0e8;
  --danger: #8f2f2f;
  --radius: 10px;
  --maxw: 46rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14150f; --fg: #ece9e2; --muted: #9b978e; --line: #2e2f28;
    --card: #1c1d17; --accent: #7fb6a3; --accent-soft: #1c2a25;
    --warn: #d4a07a; --warn-soft: #2a211a; --danger: #d98b8b;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard",
    "Noto Sans KR", "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  word-break: keep-all;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.1rem; }

/* --- 머리 --- */
header.top {
  border-bottom: 1px solid var(--line);
  background: var(--card);
  position: sticky; top: 0; z-index: 10;
}
header.top .wrap { display: flex; align-items: center; gap: 1rem; height: 3.4rem; }
.brand { font-weight: 700; letter-spacing: -0.02em; color: var(--fg); font-size: 1.05rem; }
.brand small { display: block; font-weight: 400; font-size: 0.7rem; color: var(--muted); line-height: 1; }
nav.top { margin-left: auto; display: flex; gap: 0.9rem; font-size: 0.86rem; }
nav.top a { color: var(--muted); }
nav.top form { display: inline; }
nav.top button.link {
  background: none; border: 0; color: var(--muted); font: inherit; font-size: 0.86rem;
  cursor: pointer; padding: 0;
}

main { padding: 2rem 0 4rem; }

h1 { font-size: 1.5rem; line-height: 1.45; letter-spacing: -0.02em; margin: 0 0 0.4rem; }
h2 { font-size: 1.1rem; margin: 2.2rem 0 0.6rem; letter-spacing: -0.01em; }
h3 { font-size: 0.95rem; margin: 1.4rem 0 0.4rem; }
p { margin: 0 0 0.9rem; }
.lede { font-size: 1.05rem; color: var(--muted); margin-bottom: 1.6rem; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

/* --- 카드 --- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.2rem; margin: 0 0 1rem;
}
.card h3 { margin-top: 0; }
.card + .card { margin-top: 0.8rem; }

.note {
  border-left: 3px solid var(--accent); background: var(--accent-soft);
  padding: 0.85rem 1rem; border-radius: 0 var(--radius) var(--radius) 0; margin: 1rem 0;
  font-size: 0.92rem;
}
.note.warn { border-left-color: var(--warn); background: var(--warn-soft); }
.note strong { display: block; margin-bottom: 0.2rem; }

.error {
  border: 1px solid var(--danger); color: var(--danger);
  padding: 0.7rem 0.9rem; border-radius: var(--radius); margin: 0 0 1rem; font-size: 0.92rem;
}

/* --- 상태 --- */
.state {
  display: inline-block; padding: 0.15rem 0.6rem; border-radius: 999px;
  font-size: 0.78rem; border: 1px solid var(--line); background: var(--bg);
}
.state.armed { border-color: var(--accent); color: var(--accent); }
.state.dormant, .state.grace { border-color: var(--warn); color: var(--warn); background: var(--warn-soft); }
.state.released { border-color: var(--danger); color: var(--danger); }

.stat-row { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 0.8rem 0 0; }
.stat {
  flex: 1 1 7rem; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0.6rem 0.75rem; background: var(--bg);
}
.stat b { display: block; font-size: 1.25rem; line-height: 1.3; font-variant-numeric: tabular-nums; }
.stat span { font-size: 0.78rem; color: var(--muted); }

/* --- 표 --- */
.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.82rem; white-space: nowrap; }
td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }

/* --- 폼 --- */
label { display: block; font-size: 0.85rem; color: var(--muted); margin: 0.9rem 0 0.25rem; }
input[type=text], input[type=email], input[type=password], textarea, select {
  width: 100%; padding: 0.55rem 0.7rem; font: inherit; font-size: 0.95rem;
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--fg);
}
textarea { min-height: 15rem; line-height: 1.8; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

button, .btn {
  display: inline-block; padding: 0.55rem 1.05rem; font: inherit; font-size: 0.92rem;
  border-radius: 8px; border: 1px solid var(--accent); background: var(--accent);
  color: #fff; cursor: pointer; margin-top: 1rem;
}
@media (prefers-color-scheme: dark) { button, .btn { color: #12140f; } }
button.ghost, .btn.ghost { background: transparent; color: var(--accent); }
button.quiet, .btn.quiet {
  background: transparent; color: var(--muted); border-color: var(--line);
}
button.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
button.tiny { padding: 0.2rem 0.5rem; font-size: 0.78rem; margin: 0; }

.row { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: flex-end; }
.row > * { flex: 1 1 10rem; }
.row > .narrow { flex: 0 0 8rem; }
.actions { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: center; }
.check { display: flex; align-items: center; gap: 0.4rem; font-size: 0.85rem; color: var(--muted); }
.check input { width: auto; }

/* --- 흐름 그림 --- */
.flow { font-size: 0.86rem; margin: 1rem 0; }
.flow li {
  list-style: none; border-left: 2px solid var(--line); padding: 0 0 1rem 1rem;
  position: relative; margin: 0;
}
.flow li:last-child { border-left-color: transparent; padding-bottom: 0; }
.flow li::before {
  content: ""; position: absolute; left: -0.36rem; top: 0.5rem; width: 0.6rem; height: 0.6rem;
  border-radius: 50%; background: var(--accent);
}
.flow b { display: block; }
.flow ul { padding-left: 0; margin: 0; }

/* --- 봉투 본문 --- */
.letter {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem 1.4rem; white-space: pre-wrap; line-height: 1.95; font-size: 1.02rem;
}

pre.mono {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0.8rem; overflow-x: auto; font-size: 0.8rem; line-height: 1.6; white-space: pre-wrap;
  word-break: break-all;
}

footer.bot {
  border-top: 1px solid var(--line); margin-top: 3rem; padding: 1.4rem 0 3rem;
  font-size: 0.82rem; color: var(--muted);
}
footer.bot a { color: var(--muted); text-decoration: underline; }