:root {
  color-scheme: dark;
  --ink: #f3f6ff;
  --muted: #9ba8bf;
  --canvas: #0a1020;
  --surface: #111a2d;
  --surface-2: #172239;
  --surface-3: #1d2a43;
  --line: rgba(196, 214, 255, 0.13);
  --accent: #d9ff70;
  --accent-deep: #9ec749;
  --blue: #7caaff;
  --cyan: #81e9e1;
  --danger: #ff7c8f;
  --warning: #ffc86b;
  --success: #76e6a7;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.27);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Noto Sans KR", "Hiragino Kaku Gothic ProN", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--canvas);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 86% 8%, rgba(124, 170, 255, 0.13), transparent 25rem),
    radial-gradient(circle at 13% 84%, rgba(217, 255, 112, 0.1), transparent 31rem),
    var(--canvas);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  filter: grayscale(0.65);
  opacity: 0.48;
  transform: none;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(217, 255, 112, 0.85);
  outline-offset: 3px;
}

.app-shell {
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  z-index: 2;
  display: flex;
  flex-direction: column;
  width: 258px;
  min-height: 100vh;
  padding: 30px 20px 22px;
  border-right: 1px solid var(--line);
  background: rgba(10, 16, 32, 0.84);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #10220c;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 23px;
  font-weight: 800;
  background: var(--accent);
  border-radius: 13px;
  box-shadow: 0 0 0 5px rgba(217, 255, 112, 0.08);
}

.brand strong {
  display: block;
  font-size: 15px;
  letter-spacing: 0.07em;
}

.brand small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.nav-list {
  display: grid;
  gap: 7px;
  margin-top: 52px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 13px;
  width: 100%;
  padding: 13px 14px;
  color: var(--muted);
  font-weight: 700;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 12px;
  transition: 160ms ease;
}

.nav-item > span:first-child {
  width: 18px;
  color: inherit;
  font-size: 20px;
  line-height: 1;
  text-align: center;
}

.nav-item:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.045);
}

.nav-item.is-active {
  color: var(--ink);
  background: rgba(217, 255, 112, 0.1);
  border-color: rgba(217, 255, 112, 0.2);
}

.nav-item.is-active > span:first-child {
  color: var(--accent);
}

.side-card {
  margin-top: auto;
  padding: 17px;
  background: linear-gradient(145deg, rgba(124, 170, 255, 0.15), rgba(255, 255, 255, 0.035));
  border: 1px solid rgba(124, 170, 255, 0.2);
  border-radius: var(--radius-md);
}

.side-card h2 {
  margin: 4px 0 15px;
  font-size: 15px;
}

.side-card p:last-child {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.side-card p:last-child strong {
  color: var(--accent);
}

.rank-progress {
  height: 6px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 999px;
}

.rank-progress > span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-deep), var(--accent));
  border-radius: inherit;
  transition: width 280ms ease;
}

.reset-button {
  align-self: flex-start;
  margin-top: 14px;
  padding: 5px 0;
  color: #78869f;
  font-size: 11px;
  background: none;
  border: 0;
}

.reset-button:hover {
  color: var(--ink);
  text-decoration: underline;
}

main {
  min-height: 100vh;
  margin-left: 258px;
}

#view-root {
  width: min(1240px, calc(100% - 64px));
  margin: 0 auto;
  padding: 44px 0 64px;
}

.mobile-header,
.mobile-nav {
  display: none;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.page-title {
  margin: 9px 0 0;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.13;
  letter-spacing: -0.04em;
}

.page-lede {
  max-width: 570px;
  margin: 11px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.date-chip,
.pill,
.type-pill,
.answer-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: max-content;
  min-height: 30px;
  padding: 6px 10px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.date-chip {
  color: var(--ink);
  white-space: nowrap;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(290px, 0.8fr);
  gap: 18px;
}

.panel {
  background: rgba(17, 26, 45, 0.78);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.mission-panel {
  position: relative;
  min-height: 330px;
  padding: 33px;
  overflow: hidden;
  background:
    radial-gradient(circle at 94% 15%, rgba(217, 255, 112, 0.2), transparent 13rem),
    linear-gradient(145deg, #1b2b31, #172239 74%);
}

.mission-panel::after {
  position: absolute;
  top: 26px;
  right: 30px;
  width: 160px;
  height: 160px;
  content: "";
  border: 1px solid rgba(217, 255, 112, 0.2);
  border-radius: 45% 55% 58% 42%;
  transform: rotate(28deg);
}

.mission-panel > * {
  position: relative;
  z-index: 1;
}

.mission-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(217, 255, 112, 0.12);
}

.mission-panel h2 {
  max-width: 560px;
  margin: 14px 0 8px;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.04em;
}

.mission-panel h2 b {
  color: var(--accent);
}

.mission-panel .page-lede {
  margin-top: 0;
}

.mission-progress {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 24px 0;
}

.mission-progress > div {
  padding: 12px;
  background: rgba(5, 12, 25, 0.32);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 13px;
}

.mission-progress span {
  display: block;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
}

.mission-progress strong {
  display: block;
  margin-top: 4px;
  font-size: 17px;
}

.primary-button,
.secondary-button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 45px;
  padding: 11px 16px;
  color: #13220b;
  font-weight: 850;
  text-decoration: none;
  background: var(--accent);
  border: 1px solid transparent;
  border-radius: 12px;
  box-shadow: 0 9px 22px rgba(147, 185, 66, 0.17);
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.primary-button:hover {
  background: #ecffac;
  box-shadow: 0 12px 28px rgba(147, 185, 66, 0.28);
  transform: translateY(-2px);
}

.secondary-button {
  color: var(--ink);
  background: var(--surface-3);
  border-color: var(--line);
  box-shadow: none;
}

.secondary-button:hover,
.ghost-button:hover {
  background: #293955;
}

.ghost-button {
  min-height: auto;
  padding: 8px 11px;
  color: var(--muted);
  font-size: 12px;
  background: transparent;
  border-color: var(--line);
  box-shadow: none;
}

.quick-stats {
  display: grid;
  gap: 14px;
}

.stat-panel {
  position: relative;
  min-height: 101px;
  padding: 21px 22px;
  overflow: hidden;
}

.stat-panel::after {
  position: absolute;
  right: -10px;
  bottom: -36px;
  color: rgba(255, 255, 255, 0.05);
  font-size: 104px;
  font-weight: 900;
}

.stat-panel:nth-child(1)::after {
  content: "XP";
}

.stat-panel:nth-child(2)::after {
  content: "×";
}

.stat-panel:nth-child(3)::after {
  content: "秒";
}

.stat-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.stat-panel strong {
  display: block;
  margin-top: 7px;
  font-size: 26px;
  letter-spacing: -0.04em;
}

.stat-panel small {
  color: var(--accent);
  font-size: 11px;
}

.section-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
  margin-top: 18px;
}

.section-panel {
  padding: 26px;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.section-heading h2 {
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.section-heading p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.category-list {
  display: grid;
  gap: 14px;
}

.category-row {
  display: grid;
  grid-template-columns: minmax(96px, 0.75fr) minmax(0, 1.6fr) 40px;
  align-items: center;
  gap: 12px;
}

.category-label {
  font-size: 13px;
  font-weight: 750;
}

.bar-track {
  height: 8px;
  overflow: hidden;
  background: #0b1323;
  border-radius: 999px;
}

.bar-track > span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  border-radius: inherit;
  transition: width 300ms ease;
}

.category-row strong {
  color: var(--muted);
  font-size: 11px;
  text-align: right;
}

.achievement-list {
  display: grid;
  gap: 10px;
}

.achievement {
  display: grid;
  grid-template-columns: 35px 1fr;
  gap: 11px;
  align-items: center;
  min-height: 59px;
  padding: 10px;
  border: 1px solid transparent;
  border-radius: 12px;
}

.achievement.is-unlocked {
  background: rgba(217, 255, 112, 0.07);
  border-color: rgba(217, 255, 112, 0.16);
}

.achievement:not(.is-unlocked) {
  opacity: 0.42;
}

.achievement-icon {
  display: grid;
  width: 35px;
  height: 35px;
  place-items: center;
  color: var(--accent);
  font-size: 18px;
  background: rgba(217, 255, 112, 0.1);
  border-radius: 10px;
}

.achievement b,
.achievement small {
  display: block;
}

.achievement b {
  font-size: 12px;
}

.achievement small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 10px;
}

.quiz-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 262px;
  gap: 18px;
}

.quiz-panel {
  min-height: 600px;
  padding: 30px;
}

.quiz-topline,
.feedback-meta,
.result-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.question-count,
.timer,
.combo-chip {
  font-size: 12px;
  font-weight: 800;
}

.timer {
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.question-body {
  display: grid;
  min-height: 420px;
  place-content: center;
  text-align: center;
}

.question-type {
  margin-bottom: 23px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.kanji-prompt {
  margin: 0;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
  font-size: clamp(72px, 11vw, 132px);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.1;
}

.kanji-prompt.is-sentence {
  max-width: 740px;
  font-size: clamp(29px, 5vw, 55px);
  letter-spacing: 0.02em;
  line-height: 1.45;
}

.input-wrap {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 9px;
  width: min(510px, 100%);
  margin: 36px auto 0;
}

.answer-input {
  width: 100%;
  min-height: 58px;
  padding: 13px 17px;
  color: var(--ink);
  font-size: 20px;
  text-align: center;
  background: #0c1526;
  border: 1px solid rgba(217, 255, 112, 0.24);
  border-radius: 13px;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.answer-input::placeholder {
  color: #65738c;
  font-size: 14px;
}

.answer-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(217, 255, 112, 0.1);
  outline: 0;
}

.submit-button {
  min-width: 92px;
  min-height: 58px;
  border-radius: 13px;
}

.hint-row {
  display: flex;
  justify-content: center;
  gap: 11px;
  margin-top: 12px;
}

.input-help {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
}

.hint-status {
  width: max-content;
  max-width: 100%;
  margin: 10px auto 0;
  padding: 7px 9px;
  color: #ffe3aa;
  font-size: 11px;
  font-weight: 700;
  background: rgba(255, 200, 107, 0.1);
  border: 1px solid rgba(255, 200, 107, 0.23);
  border-radius: 8px;
}

.quiz-rail {
  display: grid;
  align-content: start;
  gap: 14px;
}

.rail-card {
  padding: 20px;
}

.rail-card h3 {
  margin: 6px 0 0;
  font-size: 15px;
}

.combo-display {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-top: 13px;
}

.combo-display strong {
  color: var(--accent);
  font-size: 47px;
  letter-spacing: -0.07em;
  line-height: 1;
}

.combo-display span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.rail-card p {
  margin: 11px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.mission-mini-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.mission-mini {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 12px;
}

.mission-mini b {
  color: var(--ink);
}

.mission-mini.is-done {
  color: var(--success);
}

.feedback-card {
  width: min(620px, 100%);
  margin: 48px auto 0;
  padding: 25px;
  text-align: left;
  background: #0d1729;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.feedback-card.is-correct {
  border-color: rgba(118, 230, 167, 0.42);
  box-shadow: inset 0 0 0 1px rgba(118, 230, 167, 0.07);
}

.feedback-card.is-wrong {
  border-color: rgba(255, 124, 143, 0.38);
}

.feedback-card.is-hint {
  border-color: rgba(255, 200, 107, 0.48);
  box-shadow: inset 0 0 0 1px rgba(255, 200, 107, 0.07);
}

.feedback-status {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 18px;
  font-weight: 900;
}

.feedback-status.is-correct {
  color: var(--success);
}

.feedback-status.is-wrong {
  color: var(--danger);
}

.feedback-status.is-hint {
  color: var(--warning);
}

.feedback-reading {
  margin: 14px 0 6px;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 28px;
}

.feedback-meaning {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 10px;
  color: #d7dfed;
  font-size: 14px;
  line-height: 1.5;
}

.feedback-meaning-label {
  flex: 0 0 auto;
  padding: 2px 7px;
  color: var(--accent);
  background: rgba(97, 207, 255, 0.1);
  border: 1px solid rgba(97, 207, 255, 0.2);
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.feedback-copy {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.reading-diff {
  margin-top: 18px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 13px;
}

.diff-heading {
  margin: 0 0 10px;
  color: #d7dfed;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.diff-row {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-height: 34px;
}

.diff-label {
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
}

.diff-value {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  min-width: 0;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
  font-size: 20px;
  line-height: 1.35;
}

.diff-char {
  display: inline-grid;
  min-width: 1.3em;
  min-height: 1.45em;
  padding: 0 0.09em;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 5px;
}

.diff-char.is-match {
  color: #b9f4d2;
  background: rgba(118, 230, 167, 0.1);
  border-color: rgba(118, 230, 167, 0.2);
}

.diff-char.is-wrong {
  color: #ffd5dc;
  background: rgba(255, 124, 143, 0.16);
  border-color: rgba(255, 124, 143, 0.38);
}

.diff-char.is-correction {
  color: #ffe3aa;
  background: rgba(255, 200, 107, 0.13);
  border-color: rgba(255, 200, 107, 0.4);
}

.diff-char.is-missing-slot,
.diff-char.is-placeholder {
  color: #ffc86b;
  background: transparent;
  border-color: rgba(255, 200, 107, 0.5);
  border-style: dashed;
}

.diff-char.is-placeholder {
  color: #8492a9;
  border-color: rgba(132, 146, 169, 0.45);
}

.diff-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 13px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 10px;
}

.diff-legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.diff-swatch {
  width: 8px;
  height: 8px;
  border-radius: 2px;
}

.diff-swatch.is-match {
  background: var(--success);
}

.diff-swatch.is-wrong {
  background: var(--danger);
}

.diff-swatch.is-correction {
  background: var(--warning);
}

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

.feedback-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  margin-top: 22px;
}

.xp-gain {
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
}

.related-words {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 17px;
}

.related-words span {
  padding: 6px 8px;
  color: #bac8e3;
  font-size: 11px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 7px;
}

.review-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 0.78fr;
  gap: 18px;
}

.review-list {
  display: grid;
  gap: 9px;
}

.review-row {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr auto;
  align-items: center;
  gap: 12px;
  min-height: 61px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
}

.review-row b {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: 22px;
}

.review-row p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.review-row .pill {
  color: var(--warning);
  background: rgba(255, 200, 107, 0.09);
  border-color: rgba(255, 200, 107, 0.18);
}

.empty-state {
  display: grid;
  min-height: 255px;
  place-content: center;
  padding: 30px;
  color: var(--muted);
  text-align: center;
}

.empty-state strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 18px;
}

.boss-stage {
  position: relative;
  min-height: 500px;
  padding: 34px;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 20%, rgba(255, 200, 107, 0.2), transparent 16rem),
    linear-gradient(145deg, #2d1e27, #162238 72%);
}

.boss-stage::before {
  position: absolute;
  top: -86px;
  right: 6%;
  width: 250px;
  height: 250px;
  content: "";
  border: 1px dashed rgba(255, 200, 107, 0.27);
  border-radius: 50%;
}

.boss-stage > * {
  position: relative;
  z-index: 1;
}

.boss-card {
  margin-top: 26px;
  padding: 23px;
  background: rgba(6, 10, 21, 0.31);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
}

.boss-card h2 {
  margin: 8px 0;
  font-size: clamp(26px, 3vw, 35px);
  letter-spacing: -0.04em;
}

.boss-card p {
  max-width: 620px;
  margin: 0;
  color: #bdc8dd;
  line-height: 1.65;
}

.boss-reward {
  display: flex;
  gap: 10px;
  margin: 22px 0;
}

.boss-reward .pill {
  color: var(--warning);
  background: rgba(255, 200, 107, 0.09);
  border-color: rgba(255, 200, 107, 0.22);
}

.result-panel {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 38px;
  text-align: center;
}

.result-score {
  margin: 17px 0 6px;
  color: var(--accent);
  font-size: clamp(66px, 10vw, 102px);
  font-weight: 900;
  letter-spacing: -0.09em;
  line-height: 1;
}

.result-panel h2 {
  margin: 0;
  font-size: 27px;
}

.result-panel .page-lede {
  margin-right: auto;
  margin-left: auto;
}

.result-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 9px;
  margin: 29px 0;
}

.result-stats > div {
  padding: 16px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 13px;
}

.result-stats span,
.result-stats b {
  display: block;
}

.result-stats span {
  color: var(--muted);
  font-size: 10px;
}

.result-stats b {
  margin-top: 6px;
  font-size: 19px;
}

.result-actions {
  display: flex;
  justify-content: center;
  gap: 9px;
}

.toast-region {
  position: fixed;
  z-index: 10;
  right: 23px;
  bottom: 22px;
  display: grid;
  gap: 8px;
  pointer-events: none;
}

.toast {
  max-width: min(330px, calc(100vw - 40px));
  padding: 13px 15px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  background: #253552;
  border: 1px solid rgba(217, 255, 112, 0.28);
  border-radius: 12px;
  box-shadow: var(--shadow);
  animation: toast-in 210ms ease both;
}

.toast strong {
  color: var(--accent);
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .sidebar {
    display: none;
  }

  main {
    margin-left: 0;
    padding-bottom: 80px;
  }

  .mobile-header {
    position: sticky;
    top: 0;
    z-index: 4;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: rgba(10, 16, 32, 0.86);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(16px);
  }

  .mobile-header .brand-mark {
    width: 31px;
    height: 31px;
    font-size: 17px;
    border-radius: 10px;
  }

  .mobile-xp {
    color: var(--muted);
    font-size: 12px;
  }

  .mobile-xp b {
    color: var(--accent);
  }

  .mobile-nav {
    position: fixed;
    z-index: 5;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 6px max(12px, env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom))
      max(12px, env(safe-area-inset-left));
    background: rgba(10, 16, 32, 0.94);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(16px);
  }

  .mobile-nav .nav-item {
    display: grid;
    justify-items: center;
    gap: 4px;
    padding: 8px;
    font-size: 10px;
    text-align: center;
  }

  .mobile-nav .nav-item > span:first-child {
    font-size: 17px;
  }

  .dashboard-grid,
  .section-grid,
  .quiz-layout,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .quick-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .quiz-rail {
    grid-template-columns: repeat(3, 1fr);
  }

  .rail-card {
    min-height: 150px;
  }
}

@media (max-width: 640px) {
  #view-root {
    width: min(100% - 32px, 600px);
    padding: 28px 0;
  }

  .page-header {
    display: block;
    margin-bottom: 21px;
  }

  .date-chip {
    margin-top: 16px;
  }

  .mission-panel,
  .section-panel,
  .quiz-panel,
  .boss-stage,
  .result-panel {
    padding: 21px;
    border-radius: 20px;
  }

  .mission-panel {
    min-height: auto;
  }

  .mission-panel::after {
    width: 105px;
    height: 105px;
  }

  .mission-progress,
  .quick-stats,
  .quiz-rail {
    grid-template-columns: 1fr;
  }

  .mission-progress {
    margin: 19px 0;
  }

  .stat-panel {
    min-height: 84px;
  }

  .section-grid {
    gap: 14px;
    margin-top: 14px;
  }

  .section-heading {
    display: block;
  }

  .section-heading > .ghost-button {
    margin-top: 12px;
  }

  .category-row {
    grid-template-columns: 86px 1fr 35px;
    gap: 7px;
  }

  .quiz-panel {
    min-height: 520px;
  }

  .question-body {
    min-height: 368px;
  }

  .kanji-prompt {
    font-size: clamp(66px, 25vw, 108px);
  }

  .kanji-prompt.is-sentence {
    font-size: 28px;
  }

  .input-wrap {
    grid-template-columns: 1fr;
    margin-top: 26px;
  }

  .submit-button {
    width: 100%;
  }

  .feedback-footer,
  .result-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .feedback-footer .primary-button,
  .feedback-footer .ghost-button,
  .result-actions .primary-button,
  .result-actions .secondary-button {
    width: 100%;
  }

  .review-row {
    grid-template-columns: 1fr auto;
  }

  .review-row > div:nth-child(2) {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .review-row .pill {
    grid-column: 2;
    grid-row: 1;
  }

  .result-stats {
    grid-template-columns: 1fr;
  }

  .toast-region {
    right: 16px;
    bottom: 82px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}