/* 幼兒園教師檢定題庫
   設計沿用 r.theluboin.work：Y2K 科技樂觀主義。
   黑白紙感點陣底 + 單一酸綠重點色，圓潤厚實幾何，資料一律等寬字。 */

:root {
  --paper: #f2f2ec;
  --surface: #fff;
  --ink: #0c0d0a;
  --muted: #6f7168;
  --line: #e0dfd5;
  --dot: #d9d8cb;
  --accent: #b9f227;
  --accent-ink: #0c0d0a;
  --accent-text: #4a7300;
  --danger: #c8342a;
  --danger-bg: #fdf0ef;
  --ok: #1f7a45;
  --ok-bg: #eefaf2;
  --r: 16px;
  --sans: "Syne", -apple-system, "PingFang TC", "Noto Sans TC", sans-serif;
  --mono: "DM Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0b0c09;
    --surface: #141710;
    --ink: #f0f1e8;
    --muted: #8b8e80;
    --line: #25281b;
    --dot: #1b1e14;
    --accent: #c6ff2e;
    --accent-ink: #0c0d0a;
    --accent-text: #c6ff2e;
    --danger: #ff6154;
    --danger-bg: #2a1512;
    --ok: #5fdc8d;
    --ok-bg: #10251a;
  }
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100dvh;
  color: var(--ink);
  font: 400 16px/1.65 var(--sans);
  background-color: var(--paper);
  background-image: radial-gradient(circle, var(--dot) 1px, transparent 1.2px);
  background-size: 24px 24px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
.logo { width: min(15rem, 56vw); margin: 0 auto; }
@media (prefers-color-scheme: dark) { .logo { filter: invert(1); } }

.wrap { max-width: 46rem; margin: 0 auto; padding: 1.75rem 1.25rem 5rem; }

/* ---------------------------------------------------------- 共用元件 */
.eyebrow {
  margin: 0 0 .55rem;
  font-size: .7rem; font-weight: 700; letter-spacing: .2em;
  text-transform: uppercase; color: var(--muted);
}
h1 { font-size: clamp(1.5rem, 5vw, 2.1rem); font-weight: 800; letter-spacing: -.02em; margin: 0 0 .5rem; line-height: 1.15; }
h2 { font-size: 1.15rem; font-weight: 700; margin: 0 0 .9rem; }
.sub { color: var(--muted); font-size: .9rem; margin: 0 0 2rem; }

.sparkle { width: 1em; height: 1em; fill: currentColor; flex: none; }

.btn {
  position: relative; overflow: hidden; isolation: isolate;
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .9rem 1.7rem; border: 0; border-radius: 999px; cursor: pointer;
  background: var(--accent); color: var(--accent-ink);
  font-family: var(--sans); font-weight: 700; font-size: 1rem; white-space: nowrap;
  box-shadow: 0 2px 0 rgba(0,0,0,.2);
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(105deg, transparent 36%, rgba(255,255,255,.8) 50%, transparent 64%);
  transform: translateX(-130%); transition: transform .6s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 4px 0 rgba(0,0,0,.2); }
.btn:hover::after { transform: translateX(130%); }
.btn:active { transform: translateY(1px); box-shadow: 0 1px 0 rgba(0,0,0,.2); }
.btn:disabled { opacity: .45; cursor: default; transform: none; }

.act {
  padding: .45rem .9rem; border-radius: 999px; cursor: pointer;
  font-family: var(--sans); font-weight: 600; font-size: .8rem;
  background: transparent; color: var(--muted); border: 1.5px solid var(--line);
  transition: color .15s ease, border-color .15s ease;
}
.act:hover { color: var(--ink); border-color: var(--ink); }
.act.on { background: var(--accent); color: var(--accent-ink); border-color: var(--ink); }
.act.danger:hover { color: var(--danger); border-color: var(--danger); }

:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }

select, input[type="number"] {
  width: 100%; padding: .85rem 1rem; font-size: 1rem;
  font-family: var(--mono); background: var(--surface); color: var(--ink);
  border: 1.5px solid var(--line); border-radius: var(--r);
}
select:focus, input:focus {
  outline: 0; border-color: var(--ink);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 45%, transparent);
}
label.fld { display: block; margin-bottom: .9rem; }
label.fld > span { display: block; font-size: .78rem; color: var(--muted); margin-bottom: .35rem; }

/* ---------------------------------------------------------- 首頁 */
header.top { text-align: center; margin-bottom: 2.5rem; }
header.top .logo { margin-bottom: 1.1rem; }

.modes { display: grid; gap: .9rem; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); }
.mode {
  display: flex; flex-direction: column; gap: .3rem; text-align: left;
  padding: 1.15rem 1.25rem; cursor: pointer;
  background: var(--surface); border: 1.5px solid var(--line); border-radius: var(--r);
  font-family: var(--sans); color: var(--ink);
  transition: border-color .15s ease, transform .15s ease;
}
.mode:hover { border-color: var(--ink); transform: translateY(-2px); }
.mode b { font-size: 1.02rem; font-weight: 700; }
.mode small { color: var(--muted); font-size: .82rem; line-height: 1.5; }
.mode .n { font-family: var(--mono); font-size: .78rem; color: var(--accent-text); }

.summary {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr));
  gap: .8rem; margin: 2.25rem 0 0;
}
.stat {
  padding: .9rem 1rem; border: 1.5px solid var(--line); border-radius: var(--r);
  background: var(--surface);
}
.stat b { display: block; font-family: var(--mono); font-size: 1.5rem; font-weight: 500; line-height: 1.2; }
.stat span { font-size: .75rem; color: var(--muted); }

/* ---------------------------------------------------------- 練習 */
.quizbar {
  display: flex; align-items: center; gap: .8rem; flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.quizbar .prog {
  flex: 1 1 8rem; height: .5rem; border-radius: 999px;
  background: var(--line); overflow: hidden;
}
.quizbar .prog i { display: block; height: 100%; background: var(--accent); transition: width .3s ease; }
.quizbar .cnt { font-family: var(--mono); font-size: .82rem; color: var(--muted); white-space: nowrap; }

.qmeta { font-family: var(--mono); font-size: .75rem; color: var(--muted); margin-bottom: .6rem; }
.passage {
  padding: 1rem 1.15rem; margin-bottom: 1rem;
  background: var(--surface); border: 1.5px dashed var(--line); border-radius: var(--r);
  font-size: .92rem; line-height: 1.85; max-height: 15rem; overflow-y: auto;
}
.stem { font-size: 1.08rem; line-height: 1.85; margin-bottom: 1.25rem; }

.opts { display: grid; gap: .65rem; }
.opt {
  display: flex; gap: .8rem; align-items: flex-start; text-align: left;
  padding: .9rem 1.1rem; cursor: pointer;
  background: var(--surface); border: 1.5px solid var(--line); border-radius: var(--r);
  font-family: var(--sans); font-size: .98rem; line-height: 1.6; color: var(--ink);
  transition: border-color .15s ease, background .15s ease;
}
.opt:hover:not(:disabled) { border-color: var(--ink); }
.opt .k {
  flex: none; width: 1.6rem; height: 1.6rem; border-radius: 8px;
  display: grid; place-items: center;
  font-family: var(--mono); font-size: .85rem; font-weight: 500;
  border: 1.5px solid var(--line);
}
.opt.correct { border-color: var(--ok); background: var(--ok-bg); }
.opt.correct .k { background: var(--ok); color: var(--surface); border-color: var(--ok); }
.opt.wrong { border-color: var(--danger); background: var(--danger-bg); }
.opt.wrong .k { background: var(--danger); color: var(--surface); border-color: var(--danger); }
.opt:disabled { cursor: default; }

.verdict {
  display: flex; align-items: center; gap: .6rem; flex-wrap: wrap;
  margin-top: 1.15rem; font-weight: 700; font-size: .95rem;
}
.verdict.ok { color: var(--ok); }
.verdict.no { color: var(--danger); }
.quizfoot { display: flex; gap: .8rem; align-items: center; flex-wrap: wrap; margin-top: 1.5rem; }
.quizfoot .spacer { flex: 1; }

/* ---------------------------------------------------------- 結果 / 清單 */
.score { text-align: center; padding: 2rem 0 1rem; }
.score .big { font-family: var(--mono); font-size: 3.5rem; font-weight: 500; line-height: 1; }
.score .lbl { color: var(--muted); font-size: .9rem; margin-top: .5rem; }

.item {
  display: flex; gap: .8rem; align-items: flex-start; flex-wrap: wrap;
  padding: 1rem .25rem; border-top: 1.5px solid var(--line);
}
.item .info { flex: 1 1 16rem; min-width: 0; }
.item .t { display: block; font-size: .95rem; line-height: 1.6; }
.item .m { display: block; margin-top: .25rem; font-family: var(--mono); font-size: .74rem; color: var(--muted); }
.empty { padding: 2rem .25rem; color: var(--muted); font-size: .9rem; text-align: center; }

.badge {
  display: inline-flex; align-items: center; padding: .2rem .6rem; border-radius: 999px;
  font-size: .68rem; font-weight: 700; letter-spacing: .06em; white-space: nowrap;
}
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.no { background: var(--danger-bg); color: var(--danger); }

/* ---------------------------------------------------------- 分析 */
.bars { display: grid; gap: .75rem; }
.bar { display: grid; grid-template-columns: 9rem 1fr 3.2rem; gap: .7rem; align-items: center; font-size: .85rem; }
.bar .track { height: .75rem; border-radius: 999px; background: var(--line); overflow: hidden; }
.bar .track i { display: block; height: 100%; background: var(--accent); }
.bar .pct { font-family: var(--mono); font-size: .8rem; color: var(--muted); text-align: right; }
@media (max-width: 30rem) { .bar { grid-template-columns: 6.5rem 1fr 2.8rem; font-size: .78rem; } }

.spark { display: flex; gap: 3px; align-items: flex-end; height: 4rem; margin-top: .5rem; }
.spark i { flex: 1; background: var(--accent); border-radius: 3px 3px 0 0; min-height: 2px; }

/* ---------------------------------------------------------- 動態 */
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes pop {
  0% { opacity: 0; transform: rotate(-120deg) scale(.2); }
  60% { opacity: 1; transform: rotate(12deg) scale(1.18); }
  100% { opacity: 1; transform: none; }
}
.rise { animation: rise .5s cubic-bezier(.2,.7,.2,1) both; }
.pop { animation: pop .5s cubic-bezier(.2,.8,.2,1) both; }
@media (prefers-reduced-motion: reduce) {
  .rise, .pop { animation: none; }
  .btn::after { display: none; }
  .btn:hover, .mode:hover { transform: none; }
}

.loading { text-align: center; padding: 5rem 1rem; color: var(--muted); font-family: var(--mono); font-size: .9rem; }

/* ---------------------------------------------------------- 帳號 / 同步 */
.util { display: flex; justify-content: flex-end; min-height: 2rem; margin-bottom: .5rem; }
.who {
  padding: .25rem .1rem; background: transparent; border: 0;
  border-bottom: 1.5px dashed var(--line);
  font-family: var(--mono); font-size: .78rem; color: var(--muted); cursor: pointer;
  transition: color .15s ease, border-color .15s ease;
}
.who:hover { color: var(--ink); border-bottom-color: var(--ink); }

.sheet {
  width: min(26rem, 92vw); padding: 1.6rem 1.6rem 1.8rem;
  border: 2px solid var(--ink); border-radius: var(--r);
  background: var(--surface); color: var(--ink);
}
.sheet::backdrop { background: rgba(8,10,7,.55); }
.sheet-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.25rem; }
.sheet-head .eyebrow { margin: 0; }
.sheet .quizfoot { margin-top: 1.1rem; }
.sheet input { width: 100%; padding: .85rem 1rem; font-size: 1rem; font-family: var(--mono);
  background: var(--paper); color: var(--ink); border: 1.5px solid var(--line); border-radius: var(--r); }

.msg { margin: 1rem 0 0; font-size: .88rem; min-height: 1.3em; }
.msg.err { color: var(--danger); }
.msg.ok { color: var(--ok); }