:root {
  --bg: #f6f5fb;
  --surface: #ffffff;
  --surface-2: #f0eef8;
  --text: #1d1b26;
  --text-2: #5f5b70;
  --text-3: #8f8aa3;
  --line: #e4e1ee;
  --primary: #7c5cff;
  --primary-press: #6747f0;
  --primary-soft: #eee9ff;
  --on-primary: #ffffff;
  --good: #14a46c;
  --good-soft: #e3f6ee;
  --bad: #e5484d;
  --bad-soft: #fdeaea;
  --shadow: 0 1px 2px rgba(30, 20, 60, .06), 0 6px 20px rgba(30, 20, 60, .06);
  --radius: 18px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121118;
    --surface: #1c1a24;
    --surface-2: #26232f;
    --text: #f2f0f8;
    --text-2: #b9b4ca;
    --text-3: #847f96;
    --line: #2f2c3a;
    --primary: #9a82ff;
    --primary-press: #876cff;
    --primary-soft: #2b2541;
    --on-primary: #14111f;
    --good: #3ccf91;
    --good-soft: #17322a;
    --bad: #ff6b70;
    --bad-soft: #3a1f22;
    --shadow: none;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #121118;
  --surface: #1c1a24;
  --surface-2: #26232f;
  --text: #f2f0f8;
  --text-2: #b9b4ca;
  --text-3: #847f96;
  --line: #2f2c3a;
  --primary: #9a82ff;
  --primary-press: #876cff;
  --primary-soft: #2b2541;
  --on-primary: #14111f;
  --good: #3ccf91;
  --good-soft: #17322a;
  --bad: #ff6b70;
  --bad-soft: #3a1f22;
  --shadow: none;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
  padding-bottom: env(safe-area-inset-bottom);
}

button, input { font: inherit; color: inherit; }
button { cursor: pointer; -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 8px 16px 48px;
}

/* 상단바 */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.02em;
}

.logo img { border-radius: 8px; }

/* 홈 */
.hero { padding: 20px 2px 16px; }
.hero h1 {
  margin: 0 0 4px;
  font-size: 26px;
  line-height: 1.3;
  letter-spacing: -0.03em;
}
.hero p { margin: 0; color: var(--text-2); }

.search {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  outline: none;
  font-size: 16px;
}
.search:focus { border-color: var(--primary); }

.chips {
  display: flex;
  gap: 8px;
  margin: 12px -16px 18px;
  padding: 0 16px;
  overflow-x: auto;
  scrollbar-width: none;
}
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex: none;
  height: 36px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 600;
}
.chip[aria-pressed="true"] {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
@media (min-width: 640px) {
  .grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: transform .15s ease;
}
.card:active { transform: scale(.98); }
.cover {
  position: relative;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background: var(--surface-2);
  overflow: hidden;
}
.cover img { width: 100%; height: 100%; object-fit: cover; }
/* 국기 모음 표지 */
.flag-grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: minmax(0, 1fr) minmax(0, 1fr); /* 두 줄이 칸 안에 딱 맞게 */
  gap: 8px;
  padding: 38px 14px 12px; /* 위쪽은 카테고리 표시 자리 (국기와 겹치지 않게) */
  background: linear-gradient(160deg, #dfe9ff, #b9ccff);
}
.flag-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .15);
}
.flag-grid.vs {
  grid-template-columns: 1fr auto 1fr;
  grid-template-rows: auto;
  align-items: center;
  gap: 6px;
  padding: 38px 12px 12px;
  background: linear-gradient(160deg, #fff1d6, #ffc98f);
}
.flag-grid.vs img { height: auto; aspect-ratio: 3 / 2; }
.vs-mark {
  font-weight: 800;
  font-size: 22px;
  color: #b4610a;
}
.cover-text {
  color: #fff;
  font-weight: 800;
  font-size: clamp(22px, 7vw, 32px);
  letter-spacing: 0.04em;
  text-shadow: 0 2px 12px rgba(0, 0, 0, .15);
}
.badge {
  position: absolute;
  left: 8px;
  top: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, .55);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
}
.card-body { padding: 10px 12px 12px; }
.card-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta {
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-3);
}
.card-meta b { color: var(--primary); font-weight: 700; }

.empty {
  padding: 40px 0;
  text-align: center;
  color: var(--text-3);
}

/* 풀기 화면 */
.play-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0 12px;
}
.icon-btn {
  flex: none;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  font-size: 18px;
}
.progress {
  flex: 1;
  height: 8px;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
}
.progress > span {
  display: block;
  height: 100%;
  background: var(--primary);
  border-radius: inherit;
  transition: width .3s ease;
}
.counter {
  flex: none;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
}

.qcard {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.qmedia {
  position: relative;
  display: grid;
  place-items: center;
  background: var(--surface-2);
  aspect-ratio: 16 / 10;
  padding: 16px;
  overflow: hidden; /* 사진이 어떤 크기여도 이 칸 밖으로 못 나가게 */
  border-bottom: 1px solid var(--line);
}
.qbig {
  font-size: clamp(40px, 13vw, 64px);
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--primary);
}
.qtext {
  margin: 0;
  padding: 18px 18px 6px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: center;
}
.qmedia.photo {
  display: block;
  aspect-ratio: auto;
  height: min(46vh, 340px);
  padding: 0;
}
/* 칸 안쪽 여백만큼 띄운 상자에 사진을 '맞춰 넣기'. 비는 곳은 투명이라 그림자는 사진 모양을 따라감 */
.qmedia.photo img {
  position: absolute;
  inset: 16px;
  width: calc(100% - 32px);
  height: calc(100% - 32px);
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, .16));
}
.qmedia.photo img.drawn { filter: none; }
.qmedia.photo .qhint { position: absolute; inset: 0; display: grid; place-items: center; }
.credit {
  margin: 0;
  padding: 0 14px 12px;
  text-align: center;
  font-size: 11px;
  color: var(--text-3);
}
.qmedia.lead {
  aspect-ratio: auto;
  min-height: 180px;
  padding: 28px 22px;
  background: linear-gradient(160deg, var(--primary-soft), var(--surface-2));
}
.qlead {
  margin: 0;
  font-size: clamp(21px, 6vw, 26px);
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.03em;
  text-align: center;
  word-break: keep-all;
}
.qtext.sub {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-3);
}
.qhint {
  margin: 0;
  padding: 0 18px;
  min-height: 24px;
  text-align: center;
  color: var(--text-3);
  font-size: 14px;
}

.answer-form {
  display: flex;
  gap: 8px;
  padding: 14px;
}
.answer-input {
  flex: 1;
  min-width: 0;
  height: 52px;
  padding: 0 16px;
  border: 2px solid var(--line);
  border-radius: 14px;
  background: var(--bg);
  outline: none;
  font-size: 17px;
  font-weight: 600;
}
.answer-input:focus { border-color: var(--primary); }

.btn {
  height: 52px;
  padding: 0 20px;
  border: 0;
  border-radius: 14px;
  background: var(--primary);
  color: var(--on-primary);
  font-weight: 700;
  font-size: 16px;
  white-space: nowrap;
}
.btn:active { background: var(--primary-press); }
.btn:disabled { opacity: .45; cursor: default; }
.btn.ghost {
  background: var(--surface-2);
  color: var(--text-2);
}
.btn.block { width: 100%; }
a.btn { display: flex; align-items: center; justify-content: center; }

.sub-actions {
  display: flex;
  justify-content: center;
  gap: 4px;
  padding: 0 14px 14px;
}
.link-btn {
  border: 0;
  background: none;
  padding: 6px 12px;
  color: var(--text-3);
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
}
.link-btn:disabled { opacity: .4; cursor: default; }

.feedback {
  margin: 0 14px 14px;
  padding: 14px 16px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: pop .25s ease;
}
.feedback.good { background: var(--good-soft); color: var(--good); }
.feedback.bad { background: var(--bad-soft); color: var(--bad); }
.feedback .mark { font-size: 26px; font-weight: 800; line-height: 1; }
.feedback .msg { font-weight: 700; }
.feedback .sub { font-size: 14px; color: var(--text-2); font-weight: 500; }

.next-wrap { padding: 0 14px 14px; }

@keyframes pop {
  from { transform: scale(.96); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.shake { animation: shake .3s ease; }
@keyframes shake {
  25% { transform: translateX(-6px); }
  50% { transform: translateX(6px); }
  75% { transform: translateX(-3px); }
}

/* 결과 화면 */
.result-top {
  text-align: center;
  padding: 28px 16px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.result-title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-3);
}
.score {
  margin: 6px 0 2px;
  font-size: 56px;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.score small { font-size: 24px; color: var(--text-3); font-weight: 700; }
.grade { margin: 0; font-size: 18px; font-weight: 700; }
.best { margin: 6px 0 0; font-size: 14px; color: var(--text-3); }
.clear-time {
  display: grid;
  gap: 2px;
  margin: 14px auto 0;
  padding: 12px 16px;
  max-width: 280px;
  border-radius: 14px;
  background: var(--primary-soft);
}
.clear-time span { font-size: 13px; font-weight: 600; color: var(--text-2); }
.clear-time b { font-size: 30px; font-weight: 800; color: var(--primary); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.clear-time small { font-size: 13px; color: var(--text-3); }
.clear-time small.new { color: var(--primary); font-weight: 700; }
.best.new { color: var(--primary); font-weight: 700; }

.result-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 14px 0 22px;
}
.result-actions .btn:first-child { grid-column: 1 / -1; }

.section-title {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 700;
}
.review { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.review li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.review .thumb {
  flex: none;
  width: 56px;
  height: 40px;
  border-radius: 8px;
  background: var(--surface-2);
  display: grid;
  place-items: center;
  overflow: hidden;
  font-size: 12px;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
  letter-spacing: -0.02em;
}
.review .thumb img { width: 100%; height: 100%; object-fit: cover; }
.review .info { flex: 1; min-width: 0; }
.review .q { font-size: 13px; color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.review .a { font-weight: 700; }
.review .mine { font-size: 13px; color: var(--bad); }
.review .ok { flex: none; font-weight: 800; font-size: 18px; }
.review .ok.good { color: var(--good); }
.review .ok.bad { color: var(--bad); }

/* 알림 */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(24px + env(safe-area-inset-bottom));
  transform: translate(-50%, 20px);
  padding: 10px 16px;
  border-radius: 12px;
  background: var(--text);
  color: var(--bg);
  font-size: 14px;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
  max-width: calc(100% - 32px);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* 광고 영역 */
.ad-row { grid-column: 1 / -1; }
.ad-slot {
  position: relative;
  margin: 4px 0 18px;
  min-height: 100px;
  border-radius: 14px;
  overflow: hidden;
}
.ad-label {
  position: absolute;
  top: 4px;
  right: 8px;
  z-index: 1;
  font-size: 10px;
  color: var(--text-3);
}
.ad-placeholder {
  display: grid;
  place-items: center;
  border: 1px dashed var(--line);
  background: var(--surface-2);
  color: var(--text-3);
  font-size: 13px;
  font-weight: 600;
}
.ad-row .ad-slot { margin: 0; }

/* 홈 아래 */
.site-foot {
  margin-top: 32px;
  text-align: center;
  font-size: 13px;
  color: var(--text-3);
}
.site-foot a { text-decoration: underline; text-underline-offset: 3px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}