:root {
  --bg: #fbf7ef;
  --card: #ffffff;
  --tile: #f3ece0;
  --ink: #1d1a16;
  --muted: #8a8174;
  --line: #e4dccd;
  --accent: #c8871e;
  --accent-soft: #fbe8c4;
  --ok: #2e9d57;
  --ok-soft: #d6f2df;
  --bad: #d0453b;
  --bad-soft: #fbdcd8;
  --guide: #e6dfd2;
  --font: "Noto Sans KR", "SamsungOne", "Malgun Gothic", system-ui, sans-serif;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 18px;
  overscroll-behavior: none;
  -webkit-user-select: none;
  user-select: none;
}
input, textarea, select { -webkit-user-select: text; user-select: text; font: inherit; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }

#app {
  max-width: 560px;
  margin: 0 auto;
  min-height: 100%;
  padding: max(12px, env(safe-area-inset-top)) 16px max(20px, env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
}

/* ---------- 상단 ---------- */
.top { display: flex; align-items: center; gap: 8px; min-height: 56px; margin-bottom: 8px; }
.top .grow { flex: 1; }
.icon {
  width: 56px; height: 56px; border-radius: 16px;
  font-size: 28px; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--card); border: 2px solid var(--line);
}
.icon:active { transform: scale(.94); }
.icon.on { background: var(--accent-soft); border-color: var(--accent); }
.icon.big { width: 72px; height: 72px; font-size: 34px; }

/* ---------- 홈 ---------- */
.home-title { display: flex; align-items: center; gap: 12px; margin: 8px 0 20px; }
.home-title img { width: 48px; height: 48px; border-radius: 12px; }
.home-title h1 { margin: 0; font-size: 28px; }
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.tile {
  background: var(--card); border: 2px solid var(--line); border-radius: 24px;
  aspect-ratio: 1 / 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
}
.tile:active { transform: scale(.97); background: var(--accent-soft); }
.tile .emoji { font-size: 64px; line-height: 1; }
.tile .label { font-size: 22px; font-weight: 700; color: var(--muted); }
.tile.wide { grid-column: 1 / -1; aspect-ratio: auto; flex-direction: row; padding: 18px; }
.tile.wide .emoji { font-size: 48px; }
.dots { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin: 22px 0 8px; }
.dot { width: 14px; height: 14px; border-radius: 50%; background: var(--line); }
.dot.l1 { background: #f3d9a6; } .dot.l2 { background: #e9b85c; } .dot.l3 { background: var(--accent); }
.dot.l4 { background: #7fbf8f; } .dot.l5 { background: var(--ok); }
.settings-btn { align-self: flex-end; margin-top: auto; opacity: .35; font-size: 22px; width: 48px; height: 48px; }

/* ---------- 그림 ---------- */
.pic {
  border-radius: 24px; overflow: hidden; background: var(--tile);
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 1 / 1; position: relative;
}
.pic img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.pic .emoji { line-height: 1; }
.pic.big { width: min(62vw, 280px); margin: 0 auto; }
.pic.big .emoji { font-size: min(34vw, 150px); }
.pic.mid { width: 100%; }
.pic.mid .emoji { font-size: min(18vw, 80px); }
.pic.sm { width: 44px; border-radius: 10px; flex: none; }
.pic.sm .emoji { font-size: 26px; }
.pic.xs { width: 32px; border-radius: 8px; flex: none; }
.pic.xs .emoji { font-size: 20px; }

/* ---------- 보기 ---------- */
.learn { flex: 1; display: flex; flex-direction: column; gap: 14px; }
.word { display: flex; justify-content: center; gap: 6px; flex-wrap: wrap; }
.syl {
  font-size: min(20vw, 96px); font-weight: 800; line-height: 1.15;
  padding: 2px 10px; border-radius: 16px; border: 3px solid transparent;
}
.syl.hl { background: var(--accent-soft); border-color: var(--accent); }
.center-row { display: flex; justify-content: center; gap: 12px; }
.same { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.same-w {
  font-size: 30px; font-weight: 800; padding: 4px 14px; border-radius: 14px;
  background: var(--accent-soft); border: 2px solid var(--accent);
}
.same-w b { color: var(--accent); margin-right: 8px; }
.related { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; min-height: 52px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--card); border: 2px solid var(--line); border-radius: 14px;
  padding: 4px 12px 4px 4px; font-size: 24px; font-weight: 700;
}
.chip mark { background: var(--accent-soft); color: inherit; border-radius: 4px; padding: 0 2px; }
.nav { display: flex; align-items: center; justify-content: space-between; margin-top: auto; }
.count { color: var(--muted); font-size: 18px; }

/* ---------- 맞히기 ---------- */
.quiz { flex: 1; display: flex; flex-direction: column; gap: 18px; }
.q-word { text-align: center; font-size: min(22vw, 104px); font-weight: 800; line-height: 1.2; margin: 12px 0; }
.opts { display: flex; flex-direction: column; gap: 12px; }
.opt {
  background: var(--card); border: 3px solid var(--line); border-radius: 20px;
  font-size: min(11vw, 48px); font-weight: 800; padding: 14px 8px;
}
/* 사진 고르기: 세로 화면에서 한 줄 3개는 너무 작아서 2개씩 크게 (남는 하나는 가운데) */
.quiz .pic.big { width: min(86vw, 38vh, 460px); }
.quiz .pic.big .emoji { font-size: min(46vw, 20vh, 240px); }
.quiz .q-word { margin: 0; }
.opts.pics { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; width: min(100%, 76vh); margin: 0 auto; }
.opts.pics .opt { padding: 6px; border-radius: 22px; }
.opts.pics .opt:last-child:nth-child(odd) { grid-column: 1 / -1; justify-self: center; width: calc(50% - 5px); }
.opts.pics .pic.mid .emoji { font-size: min(28vw, 15vh, 120px); }
.opts.pics .opt .pic { border-radius: 16px; }
.opt.ok { background: var(--ok-soft); border-color: var(--ok); }
.opt.bad { background: var(--bad-soft); border-color: var(--bad); opacity: .6; }
.opt.hint { border-color: var(--ok); animation: pulse 1s ease-in-out infinite; }
.opt.shake { animation: shake .35s; }
@keyframes shake { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-10px); } 75% { transform: translateX(10px); } }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(46,157,87,.5); } 50% { box-shadow: 0 0 0 10px rgba(46,157,87,0); } }

.overlay {
  position: fixed; inset: 0; background: rgba(29,26,22,.55);
  display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 10;
}
.overlay .box {
  background: var(--bg); border-radius: 28px; padding: 20px; width: 100%; max-width: 480px;
  display: flex; flex-direction: column; gap: 16px; align-items: center;
}
.overlay .party { font-size: 72px; line-height: 1; }
.new-words { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; width: 100%; }
.new-words .nw { display: flex; flex-direction: column; align-items: center; gap: 6px; font-size: 24px; font-weight: 800; }

/* ---------- 쓰기 ---------- */
.trace { flex: 1; display: flex; flex-direction: column; gap: 12px; }
.trace-head { display: flex; align-items: center; justify-content: center; gap: 14px; }
.trace-head .pic { width: 88px; }
.trace-head .pic .emoji { font-size: 52px; }
.trace-word { font-size: 44px; font-weight: 800; }
.pad {
  width: 100%; aspect-ratio: 5 / 3; background: var(--card);
  border: 3px dashed var(--line); border-radius: 24px; touch-action: none; display: block;
}
.tools { display: flex; justify-content: center; gap: 12px; }

/* ---------- 보내기 ---------- */
.msgbar {
  min-height: 84px; background: var(--card); border: 3px solid var(--accent); border-radius: 20px;
  padding: 10px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
}
.msgbar:empty::before { content: "💬"; font-size: 36px; opacity: .35; margin: 0 auto; }
.tok {
  font-size: 28px; font-weight: 800; background: var(--accent-soft);
  border-radius: 12px; padding: 4px 12px;
}
.free { display: flex; gap: 8px; }
.free input {
  flex: 1; min-width: 0; height: 56px; border-radius: 16px; border: 2px solid var(--line);
  padding: 0 14px; font-size: 24px; background: var(--card);
}
.tabs { display: flex; gap: 8px; }
.tabs .icon { flex: 1; width: auto; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.cell {
  background: var(--card); border: 2px solid var(--line); border-radius: 18px;
  padding: 8px 4px; display: flex; flex-direction: column; align-items: center; gap: 4px;
  font-size: 22px; font-weight: 800;
}
.cell .pic { width: 64%; border-radius: 12px; }
.cell .pic .emoji { font-size: 34px; }
.cell.num { font-size: 32px; padding: 18px 4px; }
.cell:active { background: var(--accent-soft); }
.actions { display: flex; gap: 10px; justify-content: space-between; position: sticky; bottom: 0; padding: 10px 0 4px; background: var(--bg); }
.actions .send { flex: 1; width: auto; background: var(--accent); border-color: var(--accent); }

/* ---------- 읽기 ---------- */
.reader textarea {
  width: 100%; min-height: 120px; border-radius: 18px; border: 2px solid var(--line);
  padding: 12px; font-size: 24px; background: var(--card); resize: vertical;
}
.read-out { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; align-items: flex-end; }
.rt { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.rt .t { font-size: 32px; font-weight: 800; padding: 2px 6px; border-radius: 10px; }
.rt .t mark { background: var(--accent-soft); color: inherit; border-radius: 6px; }
.rt.known .t { border: 2px solid var(--accent); }
.rt .pic { width: 64px; }
.rt .pic .emoji { font-size: 38px; }
.rt .ph { height: 64px; }

/* ---------- 설정 ---------- */
.settings { font-size: 17px; }
.settings h2 { font-size: 20px; margin: 22px 0 10px; }
.settings p.note { color: var(--muted); margin: 4px 0 10px; line-height: 1.5; }
.srow { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.srow .name { flex: 1; font-size: 20px; font-weight: 700; }
.srow { flex-wrap: wrap; }
.thumbs { flex-basis: 100%; display: flex; flex-wrap: wrap; gap: 8px; padding-left: 54px; }
.thumb { position: relative; width: 56px; height: 56px; padding: 0; border: 0; border-radius: 10px; overflow: hidden; background: var(--tile); }
.linked { flex-basis: 100%; padding-left: 54px; color: var(--muted); font-size: 15px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb .x {
  position: absolute; top: 2px; right: 2px; width: 20px; height: 20px; border-radius: 50%;
  background: rgba(0,0,0,.55); color: #fff; font-size: 12px; line-height: 20px; text-align: center;
}
.sbtn {
  min-height: 44px; padding: 0 14px; border-radius: 12px; border: 2px solid var(--line);
  background: var(--card); font-size: 16px; white-space: nowrap;
}
.sbtn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.sbtn.danger { color: var(--bad); }
.form { display: grid; gap: 10px; }
.check { display: flex; align-items: center; gap: 8px; }
.form .check input { width: 22px; height: 22px; flex: none; }
.form input, .form select {
  height: 48px; border-radius: 12px; border: 2px solid var(--line); padding: 0 12px; background: var(--card); width: 100%;
}

.toast {
  position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%);
  background: var(--ink); color: #fff; border-radius: 16px; padding: 12px 20px; font-size: 28px; z-index: 20;
}