/* 훈민바름 — 해례본 register: 먹빛 paper, 한지 output leaf, 인주 seal. */

@font-face {
  font-family: 'HMBR Myeongjo';
  src: url('../../fonts/HMBR-Myeongjo-YetHangul.woff2') format('woff2');
  font-display: swap;
}
@font-face {
  font-family: 'HMBR Gothic';
  src: url('../../fonts/HMBR-BarunGothic-YetHangul.woff2') format('woff2');
  font-display: swap;
}

:root {
  --ink: #262b3e;        /* 먹빛 paper */
  --ink-deep: #1d2130;
  --panel: #48597a;      /* slate panel from the deck */
  --panel-line: #5f739a;
  --hanji: #f1e9d8;      /* 한지 cream */
  --hanji-line: rgba(70, 60, 40, 0.14);
  --byeol: #a8c4ea;      /* 쪽빛 accent */
  --byeol-dim: #7d94bb;
  --inju: #b8402f;       /* 인주 vermilion */
  --text: #e8e6df;
  --hmbr-font: 'HMBR Myeongjo', 'NanumMyeongjo YetHangul', serif;
  --body-font: 'Gowun Batang', 'Apple SD Gothic Neo', serif;
  --ipa-font: 'Gentium Plus', 'Gentium Book Plus', serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ink);
  background-image:
    radial-gradient(1200px 600px at 50% -10%, rgba(120, 140, 190, 0.10), transparent 70%);
  color: var(--text);
  font-family: var(--body-font);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { width: min(720px, 92vw); margin: 0 auto; flex: 1; }

/* ── masthead ── */
.masthead {
  text-align: center;
  padding: 3.2rem 1rem 2rem;
  border-bottom: 1px solid rgba(168, 196, 234, 0.25);
  margin-bottom: 2.2rem;
}
.eyebrow {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--byeol-dim);
  margin: 0 0 0.6rem;
}
.wordmark {
  font-family: var(--hmbr-font);
  font-weight: 400;
  font-size: clamp(2.6rem, 8vw, 4rem);
  letter-spacing: 0.08em;
  color: var(--byeol);
  margin: 0;
}
.tagline {
  margin: 0.4rem 0 0;
  color: var(--byeol-dim);
  letter-spacing: 0.35em;
  font-size: 0.95rem;
}

/* ── converter panel ── */
.converter {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 14px;
  padding: 1.6rem 1.7rem 1.2rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}
.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: #dfe7f4;
}
.field .hint { color: #b9c6dc; font-size: 0.78rem; margin-left: 0.4rem; }
.field input {
  width: 100%;
  font-size: 1.25rem;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--panel-line);
  background: var(--ink-deep);
  color: var(--text);
  font-family: var(--ipa-font);
}
.field input:focus-visible {
  outline: 2px solid var(--byeol);
  outline-offset: 1px;
}

.controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.accent-toggle { display: flex; border: 1px solid var(--panel-line); border-radius: 8px; overflow: hidden; }
.accent-toggle button {
  font-family: var(--body-font);
  font-size: 0.9rem;
  padding: 0.5rem 0.9rem;
  background: transparent;
  border: 0;
  color: #cfd9ea;
  cursor: pointer;
}
.accent-toggle button[aria-pressed='true'] {
  background: var(--ink-deep);
  color: var(--byeol);
}
button.primary {
  font-family: var(--body-font);
  font-size: 1.05rem;
  padding: 0.55rem 1.8rem;
  border-radius: 8px;
  border: 1px solid var(--byeol-dim);
  background: var(--ink-deep);
  color: var(--byeol);
  cursor: pointer;
}
button.primary:hover { border-color: var(--byeol); }
button:focus-visible { outline: 2px solid var(--byeol); outline-offset: 2px; }

.status { min-height: 1.4em; font-size: 0.9rem; margin: 0.8rem 0 0; color: #c9d4e6; }
.status.warn { color: #ecd9a0; }
.status.error { color: #f0a898; }
.status.ok { color: #b9e2b4; }

/* ── output leaf: the 언해 page ── */
.leaf {
  position: relative;
  margin-top: 2rem;
  background: var(--hanji);
  /* faint vertical column rules, as in the 해례본 leaf */
  background-image: repeating-linear-gradient(
    to right,
    transparent 0,
    transparent 74px,
    var(--hanji-line) 74px,
    var(--hanji-line) 75px
  );
  border-radius: 4px;
  border: 1px solid #d9cfb8;
  box-shadow:
    inset 0 0 0 10px var(--hanji),
    inset 0 0 0 11px rgba(70, 60, 40, 0.25),
    0 14px 34px rgba(0, 0, 0, 0.35);
  padding: 2.4rem 2.2rem 2.6rem;
  color: #2c2a25;
  text-align: center;
}
.leaf-tools {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  display: flex;
  gap: 0.4rem;
}
.leaf-tools button {
  font-family: var(--body-font);
  font-size: 0.78rem;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  border: 1px solid rgba(70, 60, 40, 0.35);
  background: rgba(255, 253, 247, 0.65);
  color: #4a4436;
  cursor: pointer;
}
.leaf-tools button:disabled { opacity: 0.45; cursor: default; }

.gloss {
  font-family: var(--ipa-font);
  font-size: 1rem;
  color: #6a6252;
  margin: 0 0 0.8rem;
}
.hmbr {
  font-family: var(--hmbr-font);
  font-size: 44px;          /* 1.0em stress reference; adjustable */
  line-height: 1.55;
  margin: 0;
  word-break: keep-all;
}
.hmbr-word { white-space: nowrap; }
.hmbr-primary, .hmbr-secondary { color: #191713; }
.hmbr-diphthong { color: #4a443a; }
.ipa {
  font-family: var(--ipa-font);
  color: var(--inju);
  font-size: 1.15rem;
  margin: 1rem 0 0;
}
.seal {
  position: absolute;
  right: 1.4rem;
  bottom: 1.3rem;
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  background: var(--inju);
  color: #f6efe2;
  font-family: var(--hmbr-font);
  font-size: 0.9rem;
  line-height: 1.05;
  letter-spacing: 0.05em;
  border-radius: 3px;
  writing-mode: vertical-rl;
  opacity: 0.92;
}

/* ── legend & footer ── */
.legend {
  margin: 1.8rem 0 0;
  font-size: 0.85rem;
  color: #a7b2c6;
  text-align: center;
}
.legend b { font-family: var(--hmbr-font); font-weight: 400; color: var(--byeol); }
.w125 { font-size: 1.25em; } .w100 { font-size: 1em; }
.w75 { font-size: 0.75em; } .w50 { font-size: 0.5em; }

footer {
  margin-top: 3rem;
  padding: 1.4rem 1rem 1.8rem;
  text-align: center;
  font-size: 0.78rem;
  color: #7e88a0;
  border-top: 1px solid rgba(168, 196, 234, 0.18);
}
footer p { margin: 0.15rem 0; }

@media (max-width: 560px) {
  .leaf { padding: 2rem 1.1rem 2.4rem; }
  .hmbr { font-size: 34px; }
  .converter { padding: 1.2rem 1.1rem 1rem; }
}

@media (prefers-reduced-motion: no-preference) {
  .leaf { animation: leaf-in 0.35s ease-out; }
  @keyframes leaf-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: none; }
  }
}

/* ── articulation panel: 조음 안내 ── */
.artic { margin-top: 2rem; }
.artic-title {
  font-family: var(--body-font);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--byeol);
  border-bottom: 1px solid rgba(168, 196, 234, 0.25);
  padding-bottom: 0.5rem;
  margin: 0 0 1rem;
}
.artic-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 0.8rem;
}
.artic-card {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  padding: 0.9rem 1rem;
}
.artic-prosody { border-color: var(--byeol-dim); }
.artic-head {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.45rem;
  flex-wrap: wrap;
}
.artic-symbol {
  font-family: var(--hmbr-font);
  font-size: 1.7rem;
  color: #f3ede0;
  line-height: 1.1;
}
.artic-ipa { font-family: var(--ipa-font); color: var(--byeol); font-size: 1rem; }
.artic-role { font-size: 0.74rem; color: #b9c6dc; letter-spacing: 0.04em; }
.artic-inst {
  font-family: var(--ipa-font);
  font-size: 0.88rem;
  color: #e4e9f2;
  margin: 0 0 0.4rem;
  line-height: 1.5;
}
.artic-warn {
  font-size: 0.85rem;
  color: #ecd9a0;
  margin: 0;
  line-height: 1.55;
}
.artic-warn::before { content: '⚠ '; opacity: 0.8; }
@media (max-width: 560px) {
  .artic-cards { grid-template-columns: 1fr; }
}

/* ── mode toggles & narrow-variant tag ── */
.toggles { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.artic-variant {
  margin: 0.45rem 0 0;
  font-size: 0.76rem;
  color: var(--byeol);
  border-top: 1px dashed rgba(168, 196, 234, 0.3);
  padding-top: 0.4rem;
}
.hmbr-link { color: var(--inju); }