@charset "UTF-8";

:root {
  --ink: #2a1a12;          /* 本文の濃い茶 */
  --ink-soft: #5b4636;
  --navy: #26397a;         /* ロゴの紺 */
  --navy-dark: #1b2a5e;
  --paper: #f3e6c4;        /* 羊皮紙 */
  --paper-edge: #c9ac75;
  --card: #fffdf7;
  --line: #2c291f;
  --purple: #7d5aa6;       /* パンダの机の紫 */
  --radius: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Shippori Mincho", "游明朝", YuMincho, "Hiragino Mincho ProN", serif;
  color: var(--ink);
  background: #9fc3cf url(/static/img/bg_img.gif);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px 16px 40px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- ロゴ ---------- */
.logo {
  width: min(520px, 100%);
  margin: 4px auto 20px;
  filter: drop-shadow(3px 2px 3px rgba(0,0,0,.35));
}
.scroll {                          /* トップのロゴ：今の巻物の絵をそのまま使う */
  width: min(520px, 100%);
  margin: 0 auto 20px;
  padding: 6% 12%;
  background: url(/static/img/top_ttl_back.png) center / 100% 100% no-repeat;
  filter: drop-shadow(3px 2px 3px rgba(0,0,0,.4));
}
.scroll .logo { margin: 0 auto; width: 100%; filter: none; }

/* ---------- 羊皮紙パネル ---------- */
.parchment {
  background: var(--paper) url(/static/img/bg_card.gif) center / cover;
  border: 1px solid var(--paper-edge);
  border-radius: var(--radius);
  box-shadow: 0 4px 14px rgba(0,0,0,.25);
}

/* ---------- ログイン ---------- */
.login-page { justify-content: center; }
.login-card {
  width: min(440px, 100%);
  margin: 0 auto;
  padding: 28px 24px 24px;
  text-align: center;
}
.login-card .logo { margin: 0 auto 16px; width: 100%; }
.login-lead { font-size: 15px; color: var(--ink-soft); margin-bottom: 20px; letter-spacing: .1em; }
.field { text-align: left; margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.field input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  font-size: 16px;                 /* iPhoneで勝手に拡大されない大きさ */
  font-family: inherit;
  color: var(--ink);
  background: var(--card);
  border: 2px solid var(--paper-edge);
  border-radius: 10px;
}
.field input:focus { outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(38,57,122,.2); }
.btn-primary {
  display: block;
  width: 100%;
  height: 52px;
  margin-top: 8px;
  font-family: inherit;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--paper);
  background: var(--navy);
  border: 2px solid var(--navy-dark);
  border-radius: 999px;
  box-shadow: 0 3px 0 var(--navy-dark);
  cursor: pointer;
}
.btn-primary:hover { background: var(--navy-dark); }
.btn-primary:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--navy-dark); }
.login-panda { width: 160px; margin: 24px auto 8px; }
.login-note { font-size: 13px; color: var(--ink-soft); }
.login-note a { text-decoration: underline; }

/* ---------- レベル一覧（トップ） ---------- */
.level-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
@media (min-width: 768px) {          /* 最後の段も真ん中にそろえる */
  .level-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
  .level-grid > li { width: calc((100% - 48px) / 4); }
  .level-grid .level-card { height: 100%; }
}
.level-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 132px;
  padding: 14px 10px;
  text-align: center;
  background: var(--card);
  border: 4px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 3px 6px rgba(0,0,0,.3);
  transition: transform .15s, background .15s;
}
.level-card::after {               /* 今のデザインの点線の縁を引き継ぐ */
  content: "";
  position: absolute;
  inset: 3px;
  border: 2px dotted var(--line);
  border-radius: 11px;
  pointer-events: none;
}
.level-card:hover { transform: translateY(-3px); background: #fff; }
.level-card .lv { font-size: 13px; letter-spacing: .15em; }
.level-card .num { font-size: 40px; line-height: 1.1; font-weight: 700; color: var(--navy); }
.level-card .name { margin-top: 6px; font-size: 14px; font-weight: 700; line-height: 1.4; }
.level-card .ext { font-size: 11px; color: var(--ink-soft); }

/* ---------- レベル画面 ---------- */
.level-head {
  padding: 18px 20px;
  text-align: center;
  margin-bottom: 20px;
}
.level-head .lv { font-size: 14px; letter-spacing: .2em; color: var(--ink-soft); }
.level-head h1 { font-size: 26px; color: var(--navy); line-height: 1.3; }

.quiz-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 768px) {          /* 問題が1〜2個でも真ん中に寄せる */
  .quiz-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
  .quiz-list > li { width: calc((100% - 32px) / 3); }
}
.quiz-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 18px 18px 16px;
  background: var(--card);
  border: 3px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 3px 6px rgba(0,0,0,.3);
  transition: transform .15s;
}
.quiz-card:hover { transform: translateY(-3px); }
.quiz-card .tag {
  align-self: flex-start;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: var(--purple);
  border-radius: 999px;
}
.quiz-card .title { font-size: 19px; font-weight: 700; line-height: 1.35; }
.quiz-card .sub { font-size: 14px; color: var(--ink-soft); }
.quiz-card .go { margin-top: auto; text-align: right; font-size: 14px; font-weight: 700; color: var(--navy); }

.diff { display: inline-flex; gap: 3px; vertical-align: middle; margin-left: 6px; }
.diff i { width: 9px; height: 9px; border-radius: 50%; background: #d9cdb4; }
.diff i.on { background: var(--navy); }

.level-pager {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 24px;
}
.level-pager a {
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 700;
  background: rgba(255,253,247,.85);
  border: 2px solid var(--line);
  border-radius: 999px;
}
.level-pager a:hover { background: #fff; }
.level-pager .spacer { flex: 1; }

.panda-deco { width: 140px; margin: 28px auto 0; }

/* ---------- 下のボタン ---------- */
.footer-nav {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  width: 100%;
  max-width: 640px;
  margin: auto auto 0;
  padding-top: 32px;
}
.footer-nav a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  font-size: 15px;
  font-weight: 700;
  background: #ecd9af;
  border: 2px solid #6b5536;
  border-radius: 999px;
  box-shadow: 0 2px 4px rgba(0,0,0,.3);
}
.footer-nav a:hover { background: var(--paper-edge); }
.footer-nav img { width: 18px; height: 18px; object-fit: contain; }
@media (max-width: 380px) { .footer-nav a { font-size: 13px; gap: 4px; } }

/* ---------- 見本の目印 ---------- */
.mock-badge {
  position: fixed; right: 8px; top: 8px; z-index: 10;
  padding: 4px 10px;
  font: 700 12px/1.4 sans-serif;
  color: #fff; background: rgba(180,30,30,.85);
  border-radius: 6px;
}