@charset "UTF-8";

:root {
  --paper: #f4ede0;
  --paper-2: #ebe3d2;
  --paper-3: #e2d8c2;
  --ink: #1a1a17;
  --ink-2: #3a3a33;
  --ink-3: #6b6555;
  --leaf: #2f4f37;
  --leaf-2: #436b4d;
  --leaf-3: #6a8a6f;
  --gold: #a8843e;
  --gold-2: #c9a558;
  --clay: #b6533c;
  --rust: #8c3a26;
  --line: #c9bea3;
  --shadow: rgba(38, 30, 14, 0.12);

  --serif: "Noto Serif JP", "Yu Mincho", "游明朝", serif;
  --sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;

  --r-sm: 6px;
  --r-md: 14px;
  --r-lg: 22px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

.judge {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 5000;
  pointer-events: none;
}
.judge-mark {
  font-family: var(--serif);
  font-size: clamp(220px, 42vw, 480px);
  font-weight: 900;
  line-height: 1;
  text-align: center;
  animation: judgePop 1.1s cubic-bezier(0.22, 1.4, 0.36, 1) forwards;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.18));
}
.judge.correct .judge-mark { color: var(--leaf); }
.judge.correct .judge-mark::before { content: "\25CB"; }
.judge.wrong .judge-mark { color: var(--rust); }
.judge.wrong .judge-mark::before { content: "\2715"; }

@keyframes judgePop {
  0%   { transform: scale(0.3); opacity: 0; }
  20%  { transform: scale(1.15); opacity: 1; }
  35%  { transform: scale(1); opacity: 1; }
  70%  { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.3); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .judge-mark { animation-duration: .4s; }
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  background:
    radial-gradient(1100px 700px at 80% -10%, rgba(168, 132, 62, 0.10), transparent 60%),
    radial-gradient(900px 600px at -10% 110%, rgba(47, 79, 55, 0.10), transparent 65%),
    var(--paper);
  background-attachment: fixed;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(0,0,0,0.045) 1px, transparent 0);
  background-size: 4px 4px;
  pointer-events: none;
  opacity: 0.55;
  z-index: 0;
}

a { color: var(--leaf); text-decoration: none; transition: color .25s; }
a:hover { color: var(--gold); }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 700; letter-spacing: 0.02em; color: var(--ink); margin: 0; }

button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.loader {
  position: fixed;
  inset: 0;
  background: var(--paper);
  z-index: 9999;
  display: grid;
  place-items: center;
  transition: opacity .35s var(--ease), visibility .35s;
  animation: loaderFallback .35s ease 3s forwards;
}
.loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
@keyframes loaderFallback {
  to { opacity: 0; visibility: hidden; pointer-events: none; }
}
.loader-inner {
  text-align: center;
  display: grid;
  gap: 18px;
  justify-items: center;
}
.loader-mark {
  width: 64px;
  height: 64px;
  fill: var(--leaf);
  animation: sprout 1.6s var(--ease) infinite;
}
.loader-mark .stem {
  stroke: var(--leaf);
  stroke-width: 3;
  fill: none;
  stroke-linecap: round;
}
.loader-text {
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.6em;
  color: var(--ink-3);
  padding-left: 0.6em;
}
@keyframes sprout {
  0%, 100% { transform: scale(0.92) rotate(-2deg); }
  50% { transform: scale(1.04) rotate(2deg); }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 5vw;
  background: rgba(244, 237, 224, 0.85);
  backdrop-filter: blur(12px) saturate(1.1);
  -webkit-backdrop-filter: blur(12px) saturate(1.1);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
}
.brand-mark {
  width: 36px;
  height: 36px;
  fill: var(--leaf);
}
.brand-mark .stem {
  stroke: var(--leaf);
  stroke-width: 3;
  fill: none;
  stroke-linecap: round;
}
.brand-text { display: grid; line-height: 1.1; }
.brand-name { font-family: var(--serif); font-size: 18px; font-weight: 700; }
.brand-sub { font-size: 10px; letter-spacing: 0.3em; color: var(--ink-3); }

.nav {
  display: flex;
  gap: 28px;
  font-size: 14px;
}
.nav a {
  color: var(--ink-2);
  position: relative;
  padding: 4px 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--leaf);
  transition: right .35s var(--ease);
}
.nav a:hover { color: var(--leaf); }
.nav a:hover::after { right: 0; }

main {
  position: relative;
  z-index: 1;
  padding: 40px 5vw 100px;
  max-width: 1280px;
  margin: 0 auto;
}

.page {
  display: none;
  animation: pageIn .9s var(--ease-out);
}
.page.is-active { display: block; }

@keyframes pageIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.exam-banner {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 18px;
  align-items: center;
  background: linear-gradient(135deg, var(--leaf) 0%, #2a4030 100%);
  color: #fff;
  border-radius: var(--r-md);
  padding: 16px 22px;
  margin: 24px 0 0;
  position: relative;
  box-shadow: 0 16px 32px -16px rgba(47,79,55,0.4);
  animation: lineIn .8s var(--ease-out);
}
.eb-mark {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  display: grid;
  place-items: center;
  color: #fff;
  flex-shrink: 0;
}
.eb-content {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
.eb-tag {
  display: inline-block;
  background: var(--gold);
  color: #1a1a17;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.2em;
  padding: 3px 10px;
  border-radius: 999px;
}
.eb-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 15px;
}
.eb-date {
  font-size: 12px;
  opacity: 0.85;
}
.eb-cta {
  background: #fff;
  color: var(--leaf);
  font-family: var(--serif);
  font-weight: 700;
  font-size: 13px;
  padding: 10px 18px;
  border-radius: 999px;
  transition: all .25s var(--ease);
  white-space: nowrap;
}
.eb-cta:hover {
  background: var(--gold);
  color: #1a1a17;
  transform: translateX(3px);
}
.eb-close {
  width: 26px; height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255,255,255,0.15);
  color: #fff;
  font-size: 16px;
  line-height: 1;
  transition: background .25s;
}
.eb-close:hover { background: rgba(255,255,255,0.3); }

.hero {
  padding: 56px 0 40px;
  text-align: left;
  position: relative;
}
.hero-title {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.3;
  font-weight: 700;
  margin: 0 0 18px;
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(18px);
  animation: lineIn .8s var(--ease-out) forwards;
}
@keyframes lineIn {
  to { opacity: 1; transform: translateY(0); }
}
.hero-lead {
  font-size: 15px;
  color: var(--ink-2);
  max-width: 640px;
  margin: 0;
  line-height: 1.95;
  opacity: 0;
  animation: lineIn .9s var(--ease-out) .2s forwards;
}
.hero-lead .num {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--leaf);
  font-weight: 700;
}

.section-head {
  margin: 0 0 28px;
  display: grid;
  gap: 8px;
}
.section-head h2 {
  font-size: 28px;
  position: relative;
  padding-left: 18px;
}
.section-head h2::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 28px;
  background: linear-gradient(180deg, var(--leaf), var(--gold));
  border-radius: 3px;
}
.section-head p {
  margin: 0;
  color: var(--ink-3);
  font-size: 14px;
}

.picker {
  margin-top: 80px;
  scroll-margin-top: 100px;
}

.random-picker {
  margin-top: 56px;
}

.random-config {
  background: linear-gradient(135deg, #ffffff 0%, var(--paper-2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px 40px 32px;
  display: grid;
  gap: 26px;
  box-shadow: 0 20px 40px -22px var(--shadow);
  position: relative;
  overflow: hidden;
}
.random-config::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--leaf), var(--gold), var(--clay));
}

.config-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  align-items: center;
}
.config-label {
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.25em;
  color: var(--ink-3);
  font-weight: 700;
}

.slider-wrap {
  display: flex;
  align-items: center;
  gap: 18px;
  grid-column: 2;
  margin-bottom: 8px;
}
.slider-value {
  font-family: var(--serif);
  font-weight: 700;
  color: var(--leaf);
  display: flex;
  align-items: baseline;
  gap: 3px;
  min-width: 90px;
}
.slider-value span { font-size: 36px; }
.slider-value small { font-size: 14px; color: var(--ink-3); font-weight: 500; }

input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--paper-3);
  border-radius: 2px;
  outline: none;
  background-image: linear-gradient(90deg, var(--leaf), var(--gold));
  background-repeat: no-repeat;
  background-size: 0% 100%;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--leaf);
  cursor: pointer;
  transition: transform .25s, box-shadow .25s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 4px 14px rgba(47,79,55,0.3);
}
input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--leaf);
  cursor: pointer;
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  grid-column: 2;
}
.chip {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
  cursor: pointer;
  transition: all .25s var(--ease);
  font-family: var(--serif);
}
.chip:hover { border-color: var(--leaf); color: var(--leaf); }
.chip.is-active {
  background: var(--leaf);
  color: #fff;
  border-color: var(--leaf);
}

.btn.primary.big {
  justify-self: end;
  padding: 16px 38px;
  font-size: 14px;
  margin-top: 8px;
}
.btn.primary.big:hover {
  background: var(--ink);
  transform: translateY(-3px);
  box-shadow: 0 12px 24px -10px rgba(47,79,55,0.5);
}

.grade-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.grade-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px 28px 32px;
  text-align: left;
  cursor: pointer;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .25s, background-color .25s;
  display: grid;
  gap: 8px;
}
.grade-card:hover {
  transform: translateY(-4px);
  border-color: var(--leaf);
  box-shadow: 0 20px 36px -22px var(--shadow);
}
.grade-card.is-active {
  border-color: var(--leaf);
  border-width: 1px;
  box-shadow: inset 0 0 0 1px var(--leaf), 0 16px 32px -20px var(--shadow);
  background: var(--paper);
}

.grade-num {
  font-family: var(--serif);
  font-size: 82px;
  line-height: 1;
  font-weight: 900;
  color: var(--leaf);
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.grade-num small {
  font-size: 22px;
  font-weight: 500;
  color: var(--ink-2);
}
.grade-name {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--ink);
  font-weight: 700;
  margin-top: 4px;
}
.grade-desc {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.7;
}

.year-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
}
.year-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 18px 14px;
  text-align: center;
  cursor: pointer;
  transition: all .35s var(--ease);
  display: grid;
  gap: 6px;
  position: relative;
  overflow: hidden;
}
.year-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--leaf);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform .35s var(--ease);
  z-index: 0;
}
.year-card > * { position: relative; z-index: 1; transition: color .35s; }
.year-card:hover { border-color: var(--leaf); transform: translateY(-3px); }
.year-card:hover::before { transform: scaleY(1); }
.year-card:hover .y-num, .year-card:hover .y-label, .year-card:hover .y-count { color: #fff; }
.year-card.has-record::after {
  content: "";
  position: absolute;
  top: 8px; right: 8px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  z-index: 2;
}
.y-num {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
}
.y-label {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--ink-3);
}
.y-count {
  font-size: 11px;
  color: var(--ink-3);
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.mode-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 28px 24px;
  text-align: left;
  cursor: pointer;
  transition: all .4s var(--ease);
  display: grid;
  gap: 8px;
  position: relative;
  overflow: hidden;
}
.mode-card:hover {
  transform: translateY(-4px);
  border-color: var(--leaf);
  box-shadow: 0 20px 40px -20px var(--shadow);
}
.mode-icon {
  font-family: var(--serif);
  font-size: 36px;
  color: var(--leaf);
  line-height: 1;
}
.mode-name {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
}
.mode-desc {
  font-size: 13px;
  color: var(--ink-3);
}
.mode-card.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.mode-card.disabled:hover { transform: none; border-color: var(--line); box-shadow: none; }

.quiz-frame {
  display: grid;
  grid-template-columns: 1fr 220px;
  grid-template-areas:
    "bar bar"
    "card side";
  gap: 28px;
  align-items: start;
}

.quiz-bar {
  grid-area: bar;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}
.quiz-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.badge {
  display: inline-block;
  background: var(--leaf);
  color: #fff;
  font-size: 11px;
  letter-spacing: 0.15em;
  padding: 5px 12px;
  border-radius: 999px;
  font-weight: 700;
}
.quiz-mode { font-size: 13px; color: var(--ink-3); }
.quiz-progress {
  flex: 1;
  display: grid;
  gap: 6px;
}
.progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
}
.elapsed {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.time-toggle {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--ink-3);
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
  transition: all .25s var(--ease);
}
.time-toggle:hover {
  color: var(--leaf);
  border-color: var(--leaf);
}
.time-toggle .eye-off { display: none; }
.quiz-frame.time-hidden .time-toggle .eye-on { display: none; }
.quiz-frame.time-hidden .time-toggle .eye-off { display: block; }
.quiz-frame.time-hidden .elapsed-time,
.quiz-frame.time-hidden .elapsed-label {
  visibility: hidden;
}
.quiz-frame.time-hidden .side-stat-pace {
  opacity: 0.2;
}
.quiz-frame.time-hidden .side-stat-pace .side-num,
.quiz-frame.time-hidden .side-stat-pace .side-label {
  visibility: hidden;
}
.elapsed-label {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--ink-3);
}
.elapsed-time {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--leaf);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
}
.progress-text {
  font-family: var(--serif);
  font-size: 13px;
  color: var(--ink-3);
  text-align: right;
}
.side-num.small { font-size: 22px; }
.progress-bar {
  height: 4px;
  background: var(--paper-3);
  border-radius: 2px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--leaf), var(--gold));
  width: 0;
  transition: width .6s var(--ease);
}
.quit {
  font-size: 12px;
  color: var(--ink-3);
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: all .25s;
}
.quit:hover { color: var(--rust); border-color: var(--rust); }

.card {
  grid-area: card;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 40px 44px 36px;
  box-shadow: 0 30px 60px -28px var(--shadow);
  animation: cardIn .55s var(--ease-out);
  position: relative;
}
.card.is-leaving { animation: cardOut .35s var(--ease) forwards; }

@keyframes cardIn {
  from { opacity: 0; transform: translateY(20px) rotateX(-3deg); }
  to { opacity: 1; transform: translateY(0) rotateX(0); }
}
@keyframes cardOut {
  to { opacity: 0; transform: translateY(-20px) scale(0.985); }
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}
.qnum {
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--leaf);
  font-weight: 700;
}
.qnum span { font-size: 28px; margin-left: 4px; }
.qmeta { font-size: 12px; color: var(--ink-3); letter-spacing: 0.15em; }

.card-stem {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.9;
  color: var(--ink);
  margin-bottom: 28px;
}

.options {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.option {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--paper);
  cursor: pointer;
  transition: all .25s var(--ease);
  text-align: left;
  width: 100%;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
}
.option:hover {
  border-color: var(--leaf);
  background: #fff;
  transform: translateX(4px);
}
.option .opt-num {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--leaf);
  width: 28px; height: 28px;
  border-radius: 50%;
  background: #fff;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  transition: all .3s;
}
.option .opt-text { padding-top: 1px; }

.option.is-correct {
  background: linear-gradient(90deg, rgba(47,79,55,0.10), rgba(47,79,55,0.02));
  border-color: var(--leaf);
  animation: pulseCorrect .8s var(--ease);
}
.option.is-correct .opt-num { background: var(--leaf); color: #fff; border-color: var(--leaf); }
.option.is-wrong {
  background: linear-gradient(90deg, rgba(140,58,38,0.10), rgba(140,58,38,0.02));
  border-color: var(--rust);
  animation: shake .45s var(--ease);
}
.option.is-wrong .opt-num { background: var(--rust); color: #fff; border-color: var(--rust); }
.option.is-disabled { cursor: default; }
.option.is-disabled:hover { transform: none; }
.option.is-dimmed { opacity: 0.45; }

@keyframes pulseCorrect {
  0% { box-shadow: 0 0 0 0 rgba(47,79,55,0.4); }
  100% { box-shadow: 0 0 0 18px rgba(47,79,55,0); }
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(7px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(3px); }
}

.card-foot {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  min-height: 48px;
}
.feedback-area {
  display: grid;
  gap: 16px;
  align-content: end;
}
.explanation {
  background: var(--paper);
  border-left: 3px solid var(--leaf);
  border-radius: var(--r-sm);
  padding: 16px 22px 18px;
  animation: fbIn .5s var(--ease-out) .1s backwards;
}
.ex-label {
  font-family: var(--serif);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--leaf);
  font-weight: 700;
  margin-bottom: 8px;
}
.ex-body {
  font-family: var(--serif);
  font-size: 14px;
  line-height: 2;
  color: var(--ink-2);
}
.feedback {
  display: flex;
  align-items: center;
  gap: 14px;
  animation: fbIn .45s var(--ease-out);
}
@keyframes fbIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.feedback-mark {
  width: 38px; height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
}
.feedback.correct .feedback-mark { background: var(--leaf); color: #fff; }
.feedback.correct .feedback-mark::before { content: "正"; }
.feedback.wrong .feedback-mark { background: var(--rust); color: #fff; }
.feedback.wrong .feedback-mark::before { content: "誤"; }
.feedback-text {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--ink-2);
}

.next-btn {
  background: var(--leaf);
  color: #fff;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: all .3s var(--ease);
}
.next-btn:hover {
  background: var(--ink);
  transform: translateX(6px);
}

.quiz-side {
  grid-area: side;
  display: grid;
  gap: 14px;
  position: sticky;
  top: 100px;
}
.side-stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 18px 20px;
  display: grid;
  gap: 4px;
}
.side-label {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--ink-3);
}
.side-num {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
  transition: color .35s var(--ease);
}
.side-num.is-pass { color: var(--leaf); }
.side-num.is-borderline { color: var(--gold); }
.side-num.is-fail { color: var(--rust); }

.result-frame {
  max-width: 720px;
  margin: 40px auto 0;
  text-align: center;
  padding: 60px 40px 50px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: 0 40px 80px -32px var(--shadow);
}
.result-eyebrow {
  font-size: 11px;
  letter-spacing: 0.5em;
  color: var(--ink-3);
  margin: 0 0 18px;
}
.result-title {
  font-size: 32px;
  margin: 0 0 20px;
}

.pass-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 22px 10px 14px;
  border-radius: 999px;
  font-family: var(--serif);
  font-weight: 700;
  margin-bottom: 28px;
  animation: badgeIn .7s var(--ease-out) .3s backwards;
}
@keyframes badgeIn {
  from { opacity: 0; transform: translateY(-8px) scale(0.92); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.pass-badge.pass {
  background: var(--leaf);
  color: #fff;
}
.pass-badge.fail {
  background: #fff;
  color: var(--rust);
  box-shadow: inset 0 0 0 1.5px var(--rust);
}
.pass-badge.borderline {
  background: #fff;
  color: var(--gold);
  box-shadow: inset 0 0 0 1.5px var(--gold);
}
.pb-mark {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: grid;
  place-items: center;
  font-size: 14px;
  line-height: 1;
}
.pass-badge.fail .pb-mark,
.pass-badge.borderline .pb-mark {
  background: currentColor;
  color: #fff;
}
.pass-badge.fail .pb-mark { color: var(--rust); }
.pass-badge.fail .pb-mark::after { content: "✕"; color: #fff; }
.pass-badge.pass .pb-mark::after { content: "○"; color: #fff; }
.pass-badge.borderline .pb-mark { color: var(--gold); }
.pass-badge.borderline .pb-mark::after { content: "△"; color: #fff; }
.pb-text {
  font-size: 16px;
  letter-spacing: 0.2em;
}
.pb-border {
  font-size: 11px;
  letter-spacing: 0.1em;
  opacity: 0.85;
  font-weight: 500;
}

.ring-fg.fail { stroke: var(--rust); }
.ring-fg.borderline { stroke: var(--gold); }
.score-ring {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto 32px;
}
.score-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: var(--paper-3); stroke-width: 10; }
.ring-fg {
  fill: none;
  stroke: url(#scoreGradient);
  stroke: var(--leaf);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 552.92;
  stroke-dashoffset: 552.92;
  transition: stroke-dashoffset 1.4s var(--ease);
}
.score-inner {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 4px;
}
.score-num {
  font-family: var(--serif);
  font-size: 68px;
  font-weight: 900;
  line-height: 1;
}
.score-of { color: var(--ink-3); font-size: 14px; }
.score-pct {
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--leaf);
  font-weight: 700;
  margin-top: 6px;
}

.result-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}
.result-meta > div { display: grid; gap: 4px; }
.rm-label { font-size: 10px; letter-spacing: 0.3em; color: var(--ink-3); }
.rm-val { font-family: var(--serif); font-size: 15px; font-weight: 700; }

.result-comment {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--ink-2);
  margin: 0 0 28px;
  line-height: 1.9;
}

.review-list {
  text-align: left;
  background: var(--paper);
  border-radius: var(--r-md);
  padding: 18px 22px;
  margin-bottom: 28px;
  border: 1px solid var(--line);
}
.review-list summary {
  cursor: pointer;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 14px;
  color: var(--leaf);
  list-style: none;
}
.review-list summary::-webkit-details-marker { display: none; }
.review-list summary::before {
  content: "▸ ";
  display: inline-block;
  transition: transform .25s;
}
.review-list[open] summary::before { transform: rotate(90deg); }
.review-list ol { padding-left: 22px; margin: 14px 0 0; font-size: 13px; color: var(--ink-2); }
.review-list li { margin-bottom: 12px; }
.review-list li strong { color: var(--leaf); display: block; margin-bottom: 4px; }
.review-list .wr-correct { color: var(--leaf); font-weight: 700; }
.review-list .wr-yours { color: var(--rust); text-decoration: line-through; }
.review-list .wr-src {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.15em;
  background: var(--paper-3);
  color: var(--ink-3);
  padding: 2px 8px;
  border-radius: 999px;
  margin-right: 6px;
  text-decoration: none;
  font-weight: 500;
}

.result-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.result-promo {
  margin-top: 40px;
  padding: 30px 28px 26px;
  background: linear-gradient(135deg, var(--paper) 0%, var(--paper-2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  text-align: center;
  position: relative;
}
.result-promo::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--leaf), var(--gold));
  border-radius: var(--r-md) var(--r-md) 0 0;
}
.rp-eyebrow {
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--leaf);
  font-weight: 700;
  margin: 0 0 8px;
}
.rp-title {
  font-family: var(--serif);
  font-size: 18px;
  margin: 0 0 12px;
}
.rp-body {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.85;
  margin: 0 0 18px;
}
.rp-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.rp-actions .btn { font-size: 12px; padding: 12px 22px; }

.btn {
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: all .3s var(--ease);
  cursor: pointer;
  border: 1px solid transparent;
}
.btn.primary { background: var(--leaf); color: #fff; }
.btn.primary:hover { background: var(--ink); transform: translateY(-2px); }
.btn.ghost { background: transparent; color: var(--ink-2); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--leaf); color: var(--leaf); }
.btn.ghost.danger:hover { border-color: var(--rust); color: var(--rust); }

.history-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin-bottom: 32px;
}
.hs-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 22px 24px;
}
.hs-label { font-size: 10px; letter-spacing: 0.3em; color: var(--ink-3); }
.hs-val { font-family: var(--serif); font-size: 30px; font-weight: 700; margin-top: 4px; }
.hs-sub { font-size: 11px; color: var(--ink-3); margin-top: 2px; }

.history-list { display: grid; gap: 10px; margin-bottom: 24px; }
.hi-row {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 16px 22px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 18px;
  align-items: center;
  transition: all .25s;
}
.hi-row:hover { border-color: var(--leaf); transform: translateX(4px); }
.hi-row.is-incomplete { border-style: dashed; }
.hi-tag {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.15em;
  background: var(--clay);
  color: #fff;
  padding: 2px 8px;
  border-radius: 999px;
  margin-right: 6px;
  font-weight: 700;
}
.hi-score small {
  font-size: 11px;
  color: var(--ink-3);
  font-weight: 500;
}
.hi-badge {
  background: var(--leaf);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.1em;
}
.hi-set { font-family: var(--serif); font-weight: 700; font-size: 15px; }
.hi-meta { font-size: 11px; color: var(--ink-3); }
.hi-score {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
}
.hi-pct {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--leaf);
  font-weight: 700;
  padding: 4px 10px;
  background: rgba(47,79,55,0.08);
  border-radius: 999px;
}
.hi-pct.low { color: var(--rust); background: rgba(140,58,38,0.08); }
.hi-pct.mid { color: var(--gold); background: rgba(168,132,62,0.08); }

.history-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-3);
}
.history-empty p { font-family: var(--serif); font-size: 16px; }

.history-foot { display: flex; justify-content: flex-end; margin-top: 24px; }

.about {
  max-width: 720px;
  margin: 0 auto;
}
.about p { font-size: 15px; line-height: 1.95; color: var(--ink-2); margin-bottom: 18px; }
.about h3 {
  margin: 36px 0 14px;
  font-size: 18px;
  padding-left: 14px;
  border-left: 3px solid var(--leaf);
}
.about ol { font-size: 14px; line-height: 1.95; color: var(--ink-2); padding-left: 22px; }
.about li { margin-bottom: 8px; }
.about a { border-bottom: 1px solid currentColor; }

.notice {
  margin: 16px 0 8px;
  padding: 22px 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--clay);
  border-radius: var(--r-md);
}
.notice-title {
  font-family: var(--serif);
  font-weight: 700;
  color: var(--clay);
  font-size: 13px;
  letter-spacing: 0.25em;
  margin: 0 0 12px;
}
.notice-list {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.95;
  color: var(--ink-2);
}
.notice-list li { margin-bottom: 10px; }
.notice-list li:last-child { margin-bottom: 0; }
.notice-list strong { color: var(--ink); font-weight: 700; }

.support {
  margin-top: 80px;
}
.support-card {
  background:
    radial-gradient(800px 400px at 100% 0%, rgba(168, 132, 62, 0.18), transparent 60%),
    linear-gradient(135deg, #fff 0%, var(--paper-2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 50px 56px 44px;
  text-align: center;
  box-shadow: 0 30px 60px -28px var(--shadow);
  position: relative;
  overflow: hidden;
}
.support-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--clay), var(--gold));
}
.support-eyebrow {
  font-size: 11px;
  letter-spacing: 0.5em;
  color: var(--gold);
  margin: 0 0 14px;
  font-weight: 700;
}
.support-card h2 {
  font-size: 28px;
  margin: 0 0 16px;
}
.support-lead {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.95;
  margin: 0 0 32px;
}
.support-amounts {
  display: grid;
  gap: 18px;
  max-width: 560px;
  margin: 0 auto 22px;
}
.amount-chips {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.amount-chip {
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: var(--r-md);
  padding: 16px 8px;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-2);
  cursor: pointer;
  transition: all .25s var(--ease);
}
.amount-chip:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}
.amount-chip.is-active {
  background: var(--leaf);
  color: #fff;
  border-color: var(--leaf);
  box-shadow: 0 8px 20px -10px rgba(47,79,55,0.5);
}
.custom-amount {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1.5px solid var(--leaf);
  border-radius: var(--r-md);
  padding: 12px 18px;
  animation: fbIn .3s var(--ease-out);
}
.ca-currency {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--leaf);
}
#custom-amount-input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  background: transparent;
}
.donate-btn {
  background: var(--leaf);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 15px !important;
  padding: 18px 32px !important;
}
.donate-btn:hover {
  background: var(--ink);
  transform: translateY(-3px);
  box-shadow: 0 16px 32px -14px rgba(47,79,55,0.55);
}
.donate-heart {
  font-size: 20px;
  line-height: 1;
}
.support-pay-methods {
  margin: 0;
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.05em;
}

.quit-modal {
  position: fixed;
  inset: 0;
  z-index: 7000;
  display: grid;
  place-items: center;
  padding: 20px;
}
.qm-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 13, 13, 0.5);
  backdrop-filter: blur(4px);
  animation: dmFadeIn .25s var(--ease-out);
}
.qm-panel {
  position: relative;
  background: #fff;
  border-radius: var(--r-lg);
  width: 100%;
  max-width: 460px;
  padding: 36px 36px 30px;
  box-shadow: 0 40px 80px -20px rgba(0,0,0,0.4);
  animation: dmSlideUp .35s var(--ease-out);
  text-align: center;
}
.qm-title {
  font-size: 22px;
  margin: 0 0 18px;
}
.qm-body {
  font-size: 14px;
  line-height: 1.95;
  color: var(--ink-2);
  margin: 0 0 26px;
}
.qm-body strong {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--leaf);
  font-weight: 900;
  margin: 0 2px;
}
.qm-body #qm-correct { color: var(--leaf); font-weight: 700; }
.qm-body #qm-wrong { color: var(--rust); font-weight: 700; }
.qm-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.qm-actions .btn { width: 100%; }
.qm-actions .btn.primary { order: -1; padding: 16px; font-size: 14px; }

.donate-modal {
  position: fixed;
  inset: 0;
  z-index: 8000;
  display: grid;
  place-items: center;
  padding: 20px;
}
.dm-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 13, 13, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: dmFadeIn .3s var(--ease-out);
}
.dm-panel {
  position: relative;
  background: #fff;
  border-radius: var(--r-lg);
  width: 100%;
  max-width: 460px;
  padding: 36px 36px 32px;
  box-shadow: 0 40px 100px -20px rgba(0,0,0,0.4);
  animation: dmSlideUp .45s var(--ease-out);
  max-height: 92vh;
  overflow-y: auto;
  overflow-x: hidden;
}
@keyframes dmFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes dmSlideUp {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.dm-close {
  position: absolute;
  top: 14px; right: 14px;
  width: 32px; height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 22px;
  color: var(--ink-3);
  background: var(--paper);
  transition: all .25s;
  line-height: 1;
}
.dm-close:hover { background: var(--paper-3); color: var(--ink); }
.dm-preview-tag {
  position: absolute;
  top: 14px; left: 14px;
  background: var(--gold);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 4px 10px;
  border-radius: 999px;
}
.dm-header {
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.dm-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.dm-brand-mark {
  width: 28px; height: 28px;
  fill: var(--leaf);
}
.dm-brand-mark .stem {
  stroke: var(--leaf);
  stroke-width: 3;
  fill: none;
  stroke-linecap: round;
}
.dm-brand-name {
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 700;
}
.dm-brand-sub {
  font-size: 12px;
  color: var(--ink-3);
  margin-left: 4px;
}
.dm-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 6px 0;
}
.dm-total-label {
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--ink-3);
}
.dm-total-amount {
  font-family: var(--serif);
  font-weight: 900;
  color: var(--ink);
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
}
.dm-yen { font-size: 16px; }
#dm-total { font-size: 28px; }

.dm-quickpay {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 18px;
}
.dm-quickpay-btn {
  padding: 12px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: opacity .2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.dm-quickpay-btn:hover { opacity: 0.85; }
.dm-quickpay-btn.applepay {
  background: #000;
  color: #fff;
}
.dm-quickpay-btn.applepay .qp-icon {
  display: inline-block;
  transform: translateY(-1px);
}
.dm-quickpay-btn.googlepay {
  background: #fff;
  color: #1a1a17;
  border: 1px solid #d0d0d0;
}
.gpay-g {
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
  font-weight: 700;
}
.gpay-g-g {
  background: linear-gradient(135deg, #4285f4 25%, #ea4335 25% 50%, #fbbc04 50% 75%, #34a853 75%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 17px;
  font-weight: 900;
}
.gpay-g-pay { color: #5f6368; font-weight: 500; }

.dm-divider {
  position: relative;
  text-align: center;
  margin: 18px 0 16px;
}
.dm-divider::before {
  content: "";
  position: absolute;
  top: 50%; left: 0; right: 0;
  height: 1px;
  background: var(--line);
}
.dm-divider span {
  position: relative;
  background: #fff;
  padding: 0 12px;
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.15em;
}

.dm-form { display: grid; gap: 14px; min-width: 0; }
.dm-field { display: grid; gap: 5px; min-width: 0; }
.dm-field input { width: 100%; min-width: 0; }
.dm-field label {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--ink-3);
  font-weight: 700;
}
.dm-field input {
  padding: 11px 14px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
  transition: all .2s;
  outline: none;
}
.dm-field input:focus {
  border-color: var(--leaf);
  box-shadow: 0 0 0 3px rgba(47,79,55,0.12);
}
.dm-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  min-width: 0;
}
.dm-field-row > .dm-field { min-width: 0; }
.dm-input-with-icon { min-width: 0; }
.dm-input-with-icon { position: relative; }
.dm-input-with-icon input { padding-right: 110px; }
.dm-card-icons {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: 4px;
}
.card-icon {
  display: inline-block;
  font-size: 9px;
  font-weight: 800;
  padding: 3px 6px;
  border-radius: 3px;
  letter-spacing: 0.05em;
}
.card-icon.visa { background: #1a1f71; color: #f7b600; }
.card-icon.mc { background: linear-gradient(90deg, #eb001b 50%, #f79e1b 50%); color: #fff; }
.card-icon.jcb { background: linear-gradient(90deg, #0e4c96 33%, #d80027 33% 66%, #007b3a 66%); color: #fff; }

.dm-pay {
  background: var(--leaf);
  color: #fff;
  padding: 14px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  margin-top: 6px;
  transition: all .25s;
}
.dm-pay:hover {
  background: var(--ink);
  transform: translateY(-1px);
}
.dm-pay:disabled {
  background: var(--ink-3);
  cursor: not-allowed;
  transform: none;
}
.dm-secure {
  margin: 8px 0 0;
  text-align: center;
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
}
.dm-lock { margin-right: 4px; }

.dm-stage { animation: fbIn .3s var(--ease-out); }

.dm-confirm-eyebrow {
  font-family: var(--serif);
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--leaf);
  margin: 0 0 10px;
  font-weight: 700;
}
.dm-confirm-lead {
  font-size: 13px;
  color: var(--ink-3);
  margin: 0;
  line-height: 1.7;
}
.dm-confirm-list {
  margin: 22px 0 18px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.dm-confirm-row {
  background: #fff;
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 12px 16px;
  margin: 0;
}
.dm-confirm-row dt {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--ink-3);
  font-weight: 700;
  margin: 0;
}
.dm-confirm-row dd {
  margin: 0;
  font-family: var(--serif);
  font-size: 14px;
  color: var(--ink);
  font-weight: 500;
  word-break: break-all;
}
.dm-confirm-amount-row {
  background: var(--paper);
}
.dm-confirm-amount-row dd {
  font-size: 24px;
  font-weight: 900;
  color: var(--leaf);
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
}
.dm-confirm-amount-row .dm-yen { font-size: 15px; }
.dm-confirm-note {
  font-size: 11px;
  color: var(--ink-3);
  text-align: center;
  margin: 0 0 18px;
  line-height: 1.7;
}
.dm-confirm-actions {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  margin-bottom: 10px;
}
.dm-back {
  padding: 14px 18px;
  border-radius: 8px;
  background: #fff;
  color: var(--ink-2);
  border: 1px solid var(--line);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all .25s;
}
.dm-back:hover {
  border-color: var(--ink-2);
  color: var(--ink);
}
.dm-submit {
  background: var(--leaf);
  color: #fff;
  padding: 14px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all .25s;
}
.dm-submit:hover {
  background: var(--ink);
  transform: translateY(-1px);
}

.dm-spinner {
  width: 56px; height: 56px;
  border: 4px solid var(--paper-3);
  border-top-color: var(--leaf);
  border-radius: 50%;
  margin: 40px auto 20px;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.dm-processing-text {
  text-align: center;
  color: var(--ink-3);
  font-size: 13px;
  letter-spacing: 0.15em;
  margin-bottom: 30px;
}

.dm-success-mark {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--leaf);
  color: #fff;
  font-family: var(--serif);
  font-size: 44px;
  font-weight: 900;
  display: grid;
  place-items: center;
  margin: 20px auto 22px;
  animation: judgePop 0.8s cubic-bezier(0.22, 1.4, 0.36, 1);
}
.dm-success-title {
  font-family: var(--serif);
  font-size: 22px;
  text-align: center;
  margin: 0 0 14px;
}
.dm-success-body {
  text-align: center;
  font-size: 14px;
  line-height: 1.9;
  color: var(--ink-2);
  margin: 0 0 22px;
}
.dm-success-thanks {
  text-align: center;
  font-size: 12px;
  color: var(--ink-3);
  line-height: 1.8;
  margin: 0 0 24px;
  padding: 14px 18px;
  background: var(--paper);
  border-radius: 8px;
}
#dm-stage-success .btn {
  display: block;
  width: 100%;
}

@media (max-width: 520px) {
  .amount-chips { grid-template-columns: repeat(2, 1fr); }
  .dm-panel { padding: 28px 22px; }
  .dm-input-with-icon input { padding-right: 14px; }
  .dm-card-icons { display: none; }
}
.support-note {
  font-size: 12px;
  color: var(--ink-3);
  margin: 0;
}

.ad-slot {
  margin: 56px auto;
  max-width: 970px;
  padding: 12px 16px 16px;
  background: rgba(255,255,255,0.5);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  text-align: center;
  position: relative;
  min-height: 100px;
}
.ad-label {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--ink-3);
  margin-bottom: 6px;
}
.ad-slot ins {
  min-height: 90px;
}

.site-foot {
  border-top: 1px solid var(--line);
  padding: 30px 5vw;
  font-size: 12px;
  color: var(--ink-3);
  text-align: center;
  background: rgba(255,255,255,0.4);
  position: relative;
  z-index: 1;
}
.site-foot p { margin: 0; letter-spacing: 0.1em; }
.foot-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
  font-size: 13px;
}
.foot-nav a {
  color: var(--ink-2);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: all .25s;
}
.foot-nav a:hover {
  color: var(--leaf);
  border-color: var(--leaf);
}
.foot-sep {
  color: var(--ink-3);
  opacity: 0.5;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 760px) {
  .nav { gap: 16px; font-size: 12px; }
  .brand-sub { display: none; }
  .hero { padding: 40px 0 30px; }
  .hero-stats { gap: 32px; }
  .stat-num { font-size: 32px; }
  .quiz-frame {
    grid-template-columns: 1fr;
    grid-template-areas: "bar" "card" "side";
  }
  .quiz-side {
    grid-template-columns: 1fr 1fr 1fr;
    display: grid;
    gap: 8px;
    position: static;
  }
  .side-stat { padding: 12px 14px; }
  .side-num { font-size: 22px; }
  .card { padding: 28px 22px; }
  .card-stem { font-size: 16px; }
  .option { padding: 14px 16px; font-size: 14px; }
  .quiz-bar { flex-wrap: wrap; gap: 12px; }
  .result-frame { padding: 40px 24px; }
  .score-num { font-size: 52px; }
  .hi-row { grid-template-columns: 1fr; gap: 8px; }
  .random-config { padding: 26px 22px; }
  .config-row { grid-template-columns: 1fr; gap: 12px; }
  .config-label { letter-spacing: 0.2em; }
  .slider-wrap { grid-column: 1; }
  .chip-group { grid-column: 1; }
  .btn.primary.big { justify-self: stretch; }
  .support-card { padding: 36px 22px; }
  .support-card h2 { font-size: 22px; }
  .support-btn { min-width: 0; width: 100%; }
  .exam-banner {
    grid-template-columns: 1fr auto;
    grid-template-areas: "mark close" "content content" "cta cta";
    gap: 12px;
    padding: 16px 18px;
  }
  .eb-mark { grid-area: mark; }
  .eb-close { grid-area: close; justify-self: end; }
  .eb-content { grid-area: content; gap: 8px; }
  .eb-cta { grid-area: cta; text-align: center; }
}

.vege-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.vege-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 40px 28px 32px;
  text-align: center;
  cursor: pointer;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .25s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.vege-card:hover {
  transform: translateY(-4px);
  border-color: var(--leaf);
  box-shadow: 0 20px 36px -22px var(--shadow);
}
.vege-icon {
  font-size: 52px;
  line-height: 1;
}
.vege-name {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
}
.vege-sub {
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
}