.coupon-page {
  --coupon-accent: #0b6b5b;
  /* 공식 확인 전 쿠폰의 색. 경고가 아니라 **아직 확인하지 못했다**는 표시다. */
  --coupon-unverified: #a15c00;
  /* 공식 공지에서 같은 코드를 찾은 것. 발견 쿠폰이지만 근거가 하나 더 있다. */
  --coupon-confirmed: #0b6b5b;
  /* 공식 공지를 보고 있는데 그 코드가 **없는** 것. 이것만이 경고다. */
  --coupon-missing: #a8322a;
  --coupon-accent-soft: #e6f2ef;
  display: grid;
  gap: 20px;
  padding-block: 30px 64px;
  color: var(--ui-ink);
}

:root[data-theme="dark"] .coupon-page {
  --coupon-accent: #63d6be;
  --coupon-unverified: #f0b429;
  --coupon-confirmed: #63d6be;
  --coupon-missing: #ef8b80;
  --coupon-accent-soft: #12201d;
}

.coupon-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 32px;
  padding: 28px 30px;
  border: 1px solid var(--ui-line);
  border-radius: 18px;
  background: var(--ui-paper);
  box-shadow: var(--ui-shadow);
}

.coupon-hero .eyebrow { color: var(--coupon-accent); font-size: 11px; font-weight: 800; letter-spacing: .14em; }
.coupon-hero h1 { margin: 8px 0 6px; font-size: clamp(26px, 4vw, 40px); line-height: 1.12; letter-spacing: -.045em; }
.coupon-hero p { max-width: 660px; margin: 0; color: var(--ui-dim); font-size: 14px; }
.coupon-hero dl { display: grid; grid-template-columns: repeat(3, minmax(88px, 1fr)); gap: 1px; margin: 0; overflow: hidden; border: 1px solid var(--ui-line); border-radius: 12px; background: var(--ui-line); }
.coupon-hero dl div { min-width: 94px; padding: 13px 16px; background: var(--ui-paper-2); }
.coupon-hero dt { color: var(--ui-dim); font-size: 11px; }
.coupon-hero dd { margin: 2px 0 0; font-size: 22px; font-weight: 850; font-variant-numeric: tabular-nums; }

.coupon-tools {
  position: sticky;
  z-index: 8;
  top: calc(var(--ui-header) + 8px);
  display: grid;
  grid-template-columns: minmax(240px, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 12px;
  border: 1px solid var(--ui-line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--ui-paper) 94%, transparent);
  box-shadow: 0 10px 28px rgb(24 39 52 / 8%);
  backdrop-filter: blur(16px);
}

.coupon-tools label { display: flex; min-height: 44px; align-items: center; gap: 10px; padding: 0 14px; border: 1px solid var(--ui-line); border-radius: 10px; background: var(--ui-paper-2); }
.coupon-tools label:focus-within { border-color: var(--coupon-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--coupon-accent) 14%, transparent); }
.coupon-tools label svg { width: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; color: var(--ui-dim); }
.coupon-tools input { width: 100%; border: 0; outline: 0; background: transparent; }
.coupon-tabs { display: flex; gap: 4px; }
.coupon-tabs button { min-height: 42px; padding: 0 14px; border-radius: 9px; background: transparent; color: var(--ui-dim); cursor: pointer; font-weight: 750; }
.coupon-tabs button span { margin-left: 4px; font-variant-numeric: tabular-nums; }
.coupon-tabs button[aria-selected="true"] { background: var(--ui-ink); color: var(--ui-paper); }

.coupon-panel { display: grid; gap: 14px; }
.coupon-panel[hidden] { display: none; }
.coupon-panel > header { display: flex; align-items: end; justify-content: space-between; padding: 8px 4px 2px; }
.coupon-panel > header h2 { margin: 0; font-size: 20px; letter-spacing: -.025em; }
.coupon-panel > header p { margin: 4px 0 0; color: var(--ui-dim); font-size: 13px; }
.coupon-game-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.coupon-game-card { overflow: hidden; border: 1px solid var(--ui-line); border-radius: 15px; background: var(--ui-paper); box-shadow: 0 8px 24px rgb(24 39 52 / 6%); }
.coupon-game-card[hidden] { display: none; }
.coupon-game-card__main { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 16px; }
.coupon-game-card__identity { min-width: 0; }
.coupon-game-card__identity strong, .coupon-game-card__identity small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.coupon-game-card__identity strong { font-size: 16px; }
.coupon-game-card__identity small { margin-top: 2px; color: var(--ui-dim); font-size: 11px; }
.coupon-game-card__open { display: inline-flex; align-items: center; gap: 6px; color: var(--coupon-accent); font-size: 12px; font-weight: 800; }
.coupon-game-card dl { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 0; border-block: 1px solid var(--ui-line); background: var(--ui-line); }
.coupon-game-card dl div { padding: 10px 12px; background: var(--ui-paper-2); }
.coupon-game-card dt { color: var(--ui-dim); font-size: 10px; }
.coupon-game-card dd { margin: 2px 0 0; font-size: 15px; font-weight: 850; font-variant-numeric: tabular-nums; }
.coupon-game-card__deadline { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 0; padding: 11px 16px; color: var(--ui-dim); font-size: 11px; }
.coupon-game-card__deadline strong { color: var(--ui-ink); font-size: 12px; }
.coupon-game-card__prereg { display: block; padding: 10px 16px 12px; border-top: 1px solid var(--ui-line); color: var(--coupon-accent); font-size: 11px; font-weight: 800; }

.coupon-back { display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--ui-dim); font-size: 12px; font-weight: 750; }
.coupon-detail-hero { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 18px; padding: 24px 26px; border: 1px solid var(--ui-line); border-radius: 18px; background: var(--ui-paper); box-shadow: var(--ui-shadow); }
.coupon-detail-hero > .coupon-pack-icon { width: 64px; height: 64px; border-radius: 15px; }
.coupon-detail-hero .eyebrow { color: var(--coupon-accent); font-size: 10px; font-weight: 850; letter-spacing: .14em; }
.coupon-detail-hero h1 { margin: 5px 0 4px; font-size: clamp(25px, 4vw, 36px); letter-spacing: -.04em; }
.coupon-detail-hero p { max-width: 650px; margin: 0; color: var(--ui-dim); font-size: 13px; }
.coupon-detail-hero dl { display: grid; grid-template-columns: repeat(3, minmax(72px, 1fr)); gap: 1px; margin: 0; overflow: hidden; border: 1px solid var(--ui-line); border-radius: 11px; background: var(--ui-line); }
.coupon-detail-hero dl div { padding: 10px 12px; background: var(--ui-paper-2); }
.coupon-detail-hero dt { color: var(--ui-dim); font-size: 10px; }
.coupon-detail-hero dd { margin: 2px 0 0; font-size: 18px; font-weight: 850; font-variant-numeric: tabular-nums; }
.coupon-game-detail .coupon-game__items { overflow: hidden; border: 1px solid var(--ui-line); border-radius: 15px; background: var(--ui-paper); box-shadow: 0 8px 24px rgb(24 39 52 / 6%); }
.coupon-detail-empty { grid-column: 1 / -1; margin: 0; padding: 28px; color: var(--ui-dim); text-align: center; }
.coupon-history { opacity: .88; }

.coupon-game { overflow: hidden; border: 1px solid var(--ui-line); border-radius: 16px; background: var(--ui-paper); box-shadow: 0 8px 24px rgb(24 39 52 / 6%); }
.coupon-game[hidden] { display: none; }
.coupon-game__head { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 15px 18px; border-bottom: 1px solid var(--ui-line); background: var(--ui-paper-2); }
.coupon-game__head > a:first-child { display: flex; min-width: 0; align-items: center; gap: 12px; }
.coupon-game__head > a:last-child { flex: none; color: var(--ui-dim); font-size: 12px; font-weight: 750; }
.coupon-game__head strong, .coupon-game__head small { display: block; }
.coupon-game__head strong { overflow: hidden; font-size: 16px; text-overflow: ellipsis; white-space: nowrap; }
.coupon-game__head small { margin-top: 1px; color: var(--ui-dim); font-size: 11px; }
.coupon-pack-icon { display: inline-grid; width: 42px; height: 42px; flex: none; place-items: center; overflow: hidden; border: 1px solid var(--ui-line); border-radius: 11px; background: var(--ui-paper); }
.coupon-pack-icon img { width: 100%; height: 100%; object-fit: cover; }
.coupon-game__items { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }

.coupon-item { display: grid; align-content: start; gap: 12px; padding: 20px; border-right: 1px solid var(--ui-line); border-bottom: 1px solid var(--ui-line); }
.coupon-item:nth-child(2n) { border-right: 0; }
.coupon-item[hidden] { display: none; }
.coupon-item__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.coupon-kind { color: var(--ui-dim); font-size: 11px; font-weight: 800; letter-spacing: .04em; }
.coupon-status { display: inline-flex; min-height: 24px; align-items: center; gap: 6px; padding: 0; background: transparent; color: var(--coupon-accent); font-size: 11px; font-weight: 850; }
.coupon-status::before { width: 6px; height: 6px; border-radius: 50%; background: currentColor; content: ""; }
.coupon-status--expired, .coupon-status--revoked { color: var(--ui-dim); }

/*
 * 발견한 쿠폰은 공식 확인된 것과 **눈으로 구별돼야 한다.** 같아 보이면 사람은 같은 값으로
 * 읽고, 그때 "공식 출처로 확인한 것만 공식이라 부른다" 는 약속이 화면에서 사라진다.
 * 그렇다고 흐리게 죽이지도 않는다 — 쓸 수 있는 코드이고, 읽으라고 올린 것이다.
 */
/* `--coupon-accent` 를 갈아 끼우면 코드 상자 테두리·상태점까지 한 번에 따라온다. */
.coupon-item--discovered { --coupon-accent: var(--coupon-unverified); }
/* 대조 결과가 카드 전체의 색을 정한다. 상태점만 바꾸면 훑어볼 때 셋이 같아 보인다. */
.coupon-item--discovered[data-coupon-state="confirmed"] { --coupon-accent: var(--coupon-confirmed); }
.coupon-item--discovered[data-coupon-state="missing"] { --coupon-accent: var(--coupon-missing); }
.coupon-item--discovered .coupon-kind,
.coupon-status--unverified,
.coupon-discovered > header p strong { color: var(--coupon-unverified); }
.coupon-item--discovered[data-coupon-state="confirmed"] .coupon-kind,
.coupon-status--confirmed { color: var(--coupon-confirmed); }
.coupon-item--discovered[data-coupon-state="missing"] .coupon-kind,
.coupon-status--missing { color: var(--coupon-missing); }
/* 왜 그렇게 판정했는지 한 줄. 색만으로는 이유를 말하지 못한다. */
.coupon-verdict { margin: 0; color: var(--coupon-accent); font-size: 12px; font-weight: 720; line-height: 1.5; }
.coupon-code { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; padding: 8px 8px 8px 12px; border: 1px solid var(--ui-line-strong); border-left: 3px solid var(--coupon-accent); border-radius: 9px; background: var(--ui-paper-2); }
.coupon-code code { align-self: center; overflow: hidden; color: var(--ui-ink); font: 850 17px/1.2 var(--mono); letter-spacing: .035em; text-overflow: ellipsis; white-space: nowrap; }
.coupon-code button { display: inline-flex; min-height: 38px; align-items: center; gap: 6px; padding: 0 11px; border: 1px solid var(--ui-line); border-radius: 7px; background: var(--ui-paper); cursor: pointer; font-size: 12px; font-weight: 800; }
.coupon-code button svg { width: 16px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.coupon-benefit-title { font-size: 17px; line-height: 1.35; }
.coupon-reward { min-height: 42px; margin: 0; color: var(--ui-ink); font-weight: 680; line-height: 1.55; }
.coupon-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 0; overflow: hidden; border: 1px solid var(--ui-line); border-radius: 10px; background: var(--ui-line); }
.coupon-facts div { min-width: 0; padding: 9px 11px; background: var(--ui-paper-2); }
.coupon-facts dt { color: var(--ui-dim); font-size: 10px; }
.coupon-facts dd { margin: 2px 0 0; font-size: 12px; font-weight: 720; }
.coupon-facts dd strong, .coupon-facts dd small { display: block; }
.coupon-facts dd small { margin-top: 2px; color: var(--ui-dim); font-weight: 500; }
.coupon-item__actions { display: flex; flex-wrap: wrap; gap: 8px; }
.coupon-action { display: inline-flex; min-height: 40px; align-items: center; justify-content: center; gap: 7px; padding: 0 13px; border: 1px solid var(--ui-line-strong); border-radius: 9px; font-size: 12px; font-weight: 800; }
.coupon-page .coupon-action--primary { border-color: #16181f; background: #16181f; color: #fff; }
:root[data-theme="dark"] .coupon-page .coupon-action--primary { border-color: #f4f3f8; background: #f4f3f8; color: #111820; }
.coupon-instructions { border-top: 1px solid var(--ui-line); color: var(--ui-dim); font-size: 12px; }
.coupon-instructions summary { padding-top: 10px; cursor: pointer; color: var(--ui-ink); font-weight: 750; }
.coupon-instructions p { margin: 8px 0; white-space: pre-line; }

.coupon-prereg-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.coupon-prereg-group { display: grid; grid-column: 1 / -1; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.coupon-prereg-group > h3 { grid-column: 1 / -1; margin: 8px 0 0; font-size: 13px; }
.coupon-prereg { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 16px; padding: 14px 16px; border: 1px solid var(--ui-line); border-radius: 14px; background: var(--ui-paper); box-shadow: 0 7px 20px rgb(24 39 52 / 5%); }
.coupon-prereg[hidden] { display: none; }
.coupon-prereg__pack { display: flex; min-width: 0; align-items: center; gap: 11px; }
.coupon-prereg__pack span:last-child { min-width: 0; }
.coupon-prereg__pack strong, .coupon-prereg__pack small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.coupon-prereg__pack small { color: var(--ui-dim); font-size: 11px; }
.coupon-prereg__meta { text-align: right; }
.coupon-prereg__meta span, .coupon-prereg__meta small { display: block; }
.coupon-prereg__meta span { font-size: 12px; font-weight: 750; }
.coupon-prereg__meta small { color: var(--ui-dim); font-size: 10px; }
.coupon-no-result { margin: 18px 0; color: var(--ui-dim); text-align: center; }
.coupon-no-result[hidden] { display: none; }

@media (max-width: 900px) {
  .coupon-hero { grid-template-columns: 1fr; }
  .coupon-tools { position: static; grid-template-columns: 1fr; }
  .coupon-tabs { overflow-x: auto; }
  .coupon-tabs button { flex: none; }
  .coupon-game__items, .coupon-prereg-list { grid-template-columns: 1fr; }
  .coupon-prereg-group { grid-template-columns: 1fr; }
  .coupon-game-grid { grid-template-columns: 1fr; }
  .coupon-detail-hero { grid-template-columns: auto minmax(0, 1fr); }
  .coupon-detail-hero dl { grid-column: 1 / -1; }
  .coupon-item { border-right: 0; }
  .coupon-prereg { grid-template-columns: minmax(0, 1fr) auto; }
  .coupon-prereg > .coupon-action { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .coupon-page { gap: 14px; padding-top: 16px; }
  .coupon-hero { gap: 20px; padding: 22px 18px; border-radius: 14px; }
  .coupon-hero dl { grid-template-columns: repeat(3, 1fr); }
  .coupon-hero dl div { min-width: 0; padding: 10px; }
  .coupon-hero dt { min-height: 30px; }
  .coupon-hero dd { font-size: 18px; }
  .coupon-tools { padding: 8px; border-radius: 12px; }
  .coupon-game { border-radius: 13px; }
  .coupon-game__head, .coupon-item { padding-inline: 14px; }
  .coupon-detail-hero { grid-template-columns: 1fr; padding: 20px 16px; border-radius: 14px; }
  .coupon-detail-hero > .coupon-pack-icon { width: 54px; height: 54px; }
  .coupon-detail-hero dl { grid-template-columns: repeat(3, 1fr); }
  .coupon-game-card__main { grid-template-columns: auto minmax(0, 1fr); }
  .coupon-game-card__open { grid-column: 2; justify-self: start; }
  .coupon-code code { font-size: 15px; }
  .coupon-facts { grid-template-columns: 1fr; }
  .coupon-prereg { grid-template-columns: 1fr; align-items: start; }
  .coupon-prereg__meta { text-align: left; }
}

/* Unified Official UI: coupon pages are a focused branch of Official, not a
   separate storefront. Flat surfaces and one warm signal color match Pack and
   community without decorative gradients or oversized type. */
.coupon-page {
  --coupon-accent: #a84432;
  --coupon-accent-soft: #f4eae6;
  width: min(1180px, 100%);
  margin-inline: auto;
  gap: 18px;
  padding-block: 22px 64px;
}
:root[data-theme="dark"] .coupon-page {
  --coupon-accent: #ef9b86;
  --coupon-accent-soft: #2c211e;
}
.coupon-back {
  min-height: 42px;
  padding: 0 2px 10px;
  border-bottom: 1px solid var(--ui-line);
  font-size: 12px;
}
.coupon-back a { color: var(--ui-dim); }
.coupon-back a:hover { color: var(--ui-ink); }
.coupon-detail-hero {
  min-height: 142px;
  gap: 16px;
  padding: 24px 26px;
  border: 1px solid var(--ui-line);
  border-radius: 16px;
  background: var(--ui-paper);
  box-shadow: 0 12px 34px rgb(29 35 44 / 6%);
}
.coupon-detail-hero > .coupon-pack-icon {
  width: 68px;
  height: 68px;
  border-radius: 16px;
}
.coupon-pack-icon img { object-fit: contain; }
.coupon-detail-hero .eyebrow { color: var(--coupon-accent); letter-spacing: .02em; }
.coupon-detail-hero h1 {
  max-width: 24ch;
  margin: 5px 0;
  font-size: clamp(1.75rem, 3vw, 2.45rem);
  line-height: 1.12;
  word-break: keep-all;
  text-wrap: balance;
}
.coupon-detail-hero p { line-height: 1.6; word-break: keep-all; }
.coupon-detail-hero dl {
  gap: 6px;
  overflow: visible;
  border: 0;
  background: transparent;
}
.coupon-detail-hero dl div {
  min-width: 78px;
  padding: 10px 12px;
  border: 1px solid var(--ui-line);
  border-radius: 9px;
  background: var(--ui-paper-2);
}
.coupon-panel { gap: 10px; }
.coupon-panel > header { padding: 10px 2px 4px; }
.coupon-panel > header h2 { font-size: 18px; }
.coupon-panel > header p { font-size: 12px; line-height: 1.55; }
.coupon-game-detail .coupon-game__items {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
.coupon-item {
  min-width: 0;
  gap: 13px;
  padding: 19px;
  border: 1px solid var(--ui-line);
  border-radius: 14px;
  background: var(--ui-paper);
  box-shadow: 0 8px 24px rgb(29 35 44 / 5%);
}
.coupon-item:nth-child(2n) { border-right: 1px solid var(--ui-line); }
.coupon-code {
  border-color: var(--ui-line-strong);
  border-left-color: var(--coupon-accent);
  background: var(--ui-paper-2);
}
.coupon-reward { min-height: 0; font-size: 13px; line-height: 1.6; }
.coupon-facts { border-radius: 9px; }
.coupon-action { border-radius: 8px; }
.coupon-page .coupon-action--primary { border-color: #20262b; background: #20262b; }
.coupon-history { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--ui-line); opacity: .78; }
.coupon-prereg { box-shadow: none; }

@media (max-width: 760px) {
  .coupon-page { padding-top: 14px; }
  .coupon-detail-hero { grid-template-columns: 56px minmax(0, 1fr); padding: 19px; }
  .coupon-detail-hero > .coupon-pack-icon { width: 56px; height: 56px; border-radius: 13px; }
  .coupon-detail-hero dl { grid-column: 1 / -1; width: 100%; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .coupon-detail-hero dl div { min-width: 0; }
  .coupon-game-detail .coupon-game__items { grid-template-columns: minmax(0, 1fr); }
  .coupon-item { padding: 16px; }
  .coupon-tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); overflow: visible; }
  .coupon-tabs button { min-width: 0; }
}

@media (max-width: 390px) {
  .coupon-back { align-items: flex-start; flex-direction: column; gap: 5px; }
  .coupon-detail-hero { grid-template-columns: 48px minmax(0, 1fr); gap: 11px; padding: 16px; }
  .coupon-detail-hero > .coupon-pack-icon { width: 48px; height: 48px; }
  .coupon-detail-hero h1 { font-size: 1.65rem; }
  .coupon-detail-hero dl div { padding: 9px 7px; }
  .coupon-detail-hero dt { font-size: 9px; }
  .coupon-detail-hero dd { font-size: 16px; }
  .coupon-code { grid-template-columns: minmax(0, 1fr) 42px; }
  .coupon-code button { width: 42px; padding: 0; justify-content: center; }
  .coupon-code button span { display: none; }
  .coupon-item__actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .coupon-action { padding-inline: 8px; }
}