/* ============================================================
   打字養成進化 — 圖鑑卡牌設計系統（task-015）
   所有色彩、陰影與尺寸判斷集中於 :root；元件只引用 tokens。
   ============================================================ */
:root {
  --bg: #F6F1E7;
  --bg2: #EFE7D8;
  --panel: #FFFDF7;
  --panel2: #F7F0E2;
  --ink: #2B3A55;
  --muted: #5C6B85;
  --primary: #33518F;
  --primary-deep: #243B6B;
  --amber: #E8A23D;
  --amber-ink: #9C6410;
  --ok: #2F8F5B;
  --err: #C94F3D;
  --gold: #D99413;
  --line: #E3DACB;
  --line-strong: #C9BFA9;

  --white: #FFFFFF;
  --primary-soft: #E8EDF6;
  --amber-soft: #F8E6C6;
  --ok-soft: #E3F1E9;
  --err-soft: #F8E7E3;
  --err-deep: #96382D;
  --overlay: rgba(43, 58, 85, .52);
  --card-shadow-color: rgba(43, 58, 85, .08);
  --card-shadow-hover-color: rgba(43, 58, 85, .12);
  --chart-grid: rgba(92, 107, 133, .18);
  --chart-primary-area: rgba(51, 81, 143, .09);
  --chart-err-area: rgba(201, 79, 61, .08);
  --transparent: transparent;

  --font-ui: "Noto Sans TC", "PingFang TC", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --radius-button: 12px;
  --radius-card: 14px;
  --shadow-card: 0 6px 18px var(--card-shadow-color);
  --shadow-card-hover: 0 9px 20px var(--card-shadow-hover-color);
  --content-max: 980px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  min-width: 320px;
  background: var(--bg);
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
input,
select,
textarea,
summary,
[tabindex] {
  -webkit-tap-highlight-color: var(--transparent);
}

:focus-visible {
  outline: 2.5px solid var(--primary);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  color: var(--ink);
  line-height: 1.25;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 5vw, 38px);
  letter-spacing: -.03em;
}

h2 {
  margin: 0 0 8px;
  font-size: clamp(22px, 3vw, 28px);
}

h3 {
  margin: 20px 0 8px;
  font-size: 18px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 7px max(16px, calc((100vw - var(--content-max)) / 2));
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.brand {
  color: var(--primary-deep);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .02em;
}

.badge {
  max-width: 52vw;
  padding: 3px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--panel2);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
  text-align: center;
}

.badge.ok {
  border-color: var(--ok);
  background: var(--ok-soft);
  color: var(--primary-deep);
}

.badge.local {
  border-color: var(--amber);
  background: var(--amber-soft);
  color: var(--ink);
}

main {
  width: 100%;
  padding: 24px 16px 64px;
}

.screen {
  display: none;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
}

.screen.active {
  display: block;
}

.card {
  width: 100%;
  max-width: 540px;
  margin: 0 auto;
  padding: 24px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--panel);
  box-shadow: var(--shadow-card);
}

.card.wide {
  max-width: var(--content-max);
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hint,
.series-desc {
  margin: 4px 0 14px;
  color: var(--muted);
  font-size: 14px;
}

.msg {
  min-height: 22px;
  margin: 10px 0 0;
  color: var(--err-deep);
  font-size: 14px;
  font-weight: 500;
}

button {
  min-height: 44px;
  padding: 10px 17px;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-button);
  background: var(--panel);
  box-shadow: 0 4px 0 var(--line-strong);
  color: var(--primary-deep);
  cursor: pointer;
  font-weight: 700;
  transition: transform .06s, box-shadow .06s;
}

button.primary {
  border-color: var(--primary);
  background: var(--primary);
  box-shadow: 0 4px 0 var(--primary-deep);
  color: var(--white);
}

button.ghost,
button.secondary {
  border-color: var(--line-strong);
  background: var(--panel);
  box-shadow: 0 4px 0 var(--line-strong);
  color: var(--primary-deep);
}

button.danger {
  border-color: var(--err);
  background: var(--err);
  box-shadow: 0 4px 0 var(--err-deep);
  color: var(--white);
}

button:active:not(:disabled) {
  transform: translateY(2px);
  box-shadow: 0 2px 0 var(--line-strong);
}

button.primary:active:not(:disabled) {
  box-shadow: 0 2px 0 var(--primary-deep);
}

button.danger:active:not(:disabled) {
  box-shadow: 0 2px 0 var(--err-deep);
}

button:disabled {
  cursor: not-allowed;
  opacity: .55;
}

form label {
  display: block;
  margin: 12px 0;
  color: var(--muted);
  font-size: 14px;
}

input,
select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 11px 12px;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-button);
  background: var(--panel);
  color: var(--ink);
  font-size: 16px;
}

/* 登入 */
#screen-login.active {
  display: grid;
  min-height: calc(100vh - 136px);
  place-items: center;
}

.login-card {
  padding: 36px clamp(24px, 6vw, 48px) 28px;
  text-align: center;
}

.login-eggs {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 8px;
  min-height: 56px;
  margin-bottom: 12px;
}

.login-eggs img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.login-eggs img:nth-child(2) {
  width: 56px;
  height: 56px;
}

.login-lead {
  margin: 0 0 24px;
  color: var(--muted);
}

.login-button {
  width: 100%;
  min-height: 52px;
  font-size: 16px;
}

.login-domain {
  margin: 15px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.login-domain span {
  color: var(--primary-deep);
  font-family: var(--font-mono);
  font-weight: 700;
}

/* 選蛋 */
.egg-select-card {
  padding: clamp(20px, 4vw, 32px);
}

.egg-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.egg-card {
  min-width: 0;
  padding: 12px;
  border: 1.5px solid var(--line);
  background: var(--panel);
  box-shadow: 0 4px 0 var(--line-strong);
  color: var(--ink);
  text-align: center;
}

.egg-card:hover,
.egg-card.selected {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: var(--shadow-card-hover), 0 4px 0 var(--primary-deep);
}

.egg-card:active:not(:disabled) {
  transform: translateY(2px);
  box-shadow: 0 2px 0 var(--primary-deep);
}

.egg-card.locked {
  pointer-events: none;
  opacity: .48;
}

.egg-card.saving {
  opacity: 1;
}

.egg-card img {
  display: block;
  width: 100%;
  max-width: 112px;
  aspect-ratio: 1;
  margin: 0 auto 5px;
  border-radius: 10px;
  background: var(--panel2);
  object-fit: contain;
}

.egg-name {
  font-size: 16px;
  font-weight: 700;
}

.egg-sub {
  min-height: 38px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

.egg-preview {
  display: grid;
  grid-template-columns: minmax(140px, .8fr) minmax(280px, 2fr) auto;
  gap: 18px;
  align-items: center;
  margin-top: 18px;
  padding: 16px;
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-card);
  background: var(--primary-soft);
}

.egg-preview-copy strong {
  color: var(--ink);
  font-size: 15px;
}

.egg-stages {
  display: grid;
  grid-template-columns: repeat(6, minmax(44px, 1fr));
  gap: 8px;
}

.egg-stage {
  position: relative;
  min-width: 44px;
  border-bottom: 2px solid var(--line-strong);
  text-align: center;
}

.egg-stage img {
  display: block;
  width: 44px;
  height: 44px;
  margin: 0 auto 5px;
  object-fit: contain;
}

.stage-number {
  position: absolute;
  top: -6px;
  left: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
}

.stage-sparkle {
  position: absolute;
  top: -9px;
  right: -3px;
  font-size: 15px;
}

.egg-confirm {
  white-space: nowrap;
}

/* 寵物圖鑑橫幅 */
.pet-banner {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  max-width: var(--content-max);
  margin: 0 auto 20px;
  padding: 22px;
}

.pet-frame {
  display: flex;
  width: 200px;
  height: 200px;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--panel2);
}

.pet-frame img {
  width: 92%;
  height: 92%;
  object-fit: contain;
}

.pet-frame.big {
  width: 240px;
  height: 240px;
}

.pet-banner .specimen-frame {
  width: 120px;
  height: 120px;
  margin: 0;
  border: 4px double var(--primary-deep);
  border-radius: 18px;
  box-shadow: inset 0 0 0 4px var(--panel);
}

.pet-banner-main {
  min-width: 0;
}

.pet-banner-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.pet-banner-head h2 {
  margin: 0;
  font-size: 25px;
}

.pet-stage {
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel2);
  color: var(--primary-deep);
  font-size: 13px;
  font-weight: 700;
}

.xp-track-wrap {
  margin-top: 11px;
}

.xp-bar {
  position: relative;
  height: 14px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--panel2);
}

.xp-bar-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: var(--amber);
  transition: width .4s ease;
}

.xp-ticks {
  position: absolute;
  inset: 0;
}

.xp-ticks span {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--primary-deep);
  opacity: .38;
}

.pet-banner-sub {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 5px;
}

.pet-xp,
.pet-tonext {
  font-size: 12px;
}

.pet-xp {
  color: var(--primary-deep);
  font-family: var(--font-mono);
  font-weight: 700;
  white-space: nowrap;
}

.pet-tonext {
  color: var(--muted);
  text-align: right;
}

.pet-stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(72px, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.pet-stats > div {
  min-width: 0;
  padding-left: 9px;
  border-left: 1px solid var(--line);
}

.pet-stats span {
  display: block;
  color: var(--primary-deep);
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.pet-stats small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.35;
}

.pet-banner-side {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 9px;
  max-width: 180px;
}

.pet-banner-side button {
  font-size: 13px;
}

.pet-banner-side .msg {
  min-height: 0;
  margin: 0;
  text-align: right;
}

/* 關卡章節與頁籤 */
.lessons-panel,
.progress-card {
  max-width: var(--content-max);
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.lesson-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 18px 0;
  padding-bottom: 4px;
  border-bottom: 1.5px solid var(--line);
}

.lesson-tab {
  border-color: var(--line-strong);
  background: var(--panel);
  color: var(--primary-deep);
}

.lesson-tab.active {
  border-color: var(--primary);
  background: var(--primary);
  box-shadow: 0 4px 0 var(--primary-deep);
  color: var(--white);
}

.chapter-card {
  margin-top: 12px;
  overflow: hidden;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--panel);
  box-shadow: var(--shadow-card);
  transition: transform .06s, box-shadow .06s;
}

.chapter-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.chapter-card summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.chapter-card summary::-webkit-details-marker {
  display: none;
}

.chapter-card summary::after {
  content: "＋";
  grid-column: 4;
  grid-row: 1;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
}

.chapter-card[open] summary::after {
  content: "−";
}

.chapter-index {
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .05em;
}

.chapter-title {
  min-width: 0;
}

.chapter-title strong,
.chapter-title small,
.chapter-completion strong,
.chapter-completion small {
  display: block;
}

.chapter-title strong {
  color: var(--ink);
  font-size: 16px;
}

.chapter-title small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
  white-space: normal;
}

.chapter-completion {
  min-width: 52px;
  text-align: right;
}

.chapter-completion strong {
  color: var(--primary-deep);
  font-family: var(--font-mono);
  font-size: 14px;
}

.chapter-completion small {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(72px, 1fr));
  gap: 10px;
  padding: 14px 16px 18px;
  border-top: 1px solid var(--line);
  background: var(--panel2);
}

.lesson-btn.lesson-node {
  display: flex;
  min-width: 0;
  min-height: 62px;
  padding: 7px 6px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  border-color: var(--line-strong);
  background: var(--panel);
  box-shadow: 0 4px 0 var(--line-strong);
  color: var(--ink);
}

.lesson-btn.lesson-node.completed {
  border-color: var(--amber);
  background: var(--amber);
  box-shadow: 0 4px 0 var(--amber-ink);
  color: var(--ink);
}

.lesson-number {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
}

.lesson-star {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: -.08em;
  line-height: 1.2;
  white-space: nowrap;
}

.article-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.lesson-btn.article-btn {
  display: flex;
  min-width: 0;
  min-height: 138px;
  padding: 14px;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 4px;
  border-color: var(--line-strong);
  background: var(--panel);
  box-shadow: 0 4px 0 var(--line-strong);
  color: var(--ink);
  text-align: left;
}

.lesson-btn.article-btn:hover,
.lesson-btn.article-btn.completed {
  border-color: var(--primary);
}

.article-btn .lesson-title {
  width: 100%;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
}

.article-meta {
  margin-bottom: auto;
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.45;
}

.article-tags {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.lvl-chip,
.fit-chip,
.done-chip {
  padding: 2px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--panel2);
  color: var(--ink);
  font-size: 11px;
  font-weight: 700;
}

.fit-chip {
  border-color: var(--amber);
  background: var(--amber-soft);
}

.done-chip {
  border-color: var(--ok);
  background: var(--ok-soft);
}

/* 我的進步 */
.progress-card {
  margin-top: 20px;
}

.progress-head {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0 18px;
}

.progress-head > div {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel2);
  text-align: center;
}

.progress-head span {
  display: block;
  color: var(--primary-deep);
  font-family: var(--font-mono);
  font-size: 23px;
  font-weight: 700;
}

.progress-head small {
  color: var(--muted);
  font-size: 11px;
}

.prog-chart {
  width: 100%;
}

.prog-empty {
  padding: 24px 0;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.spark-svg {
  display: block;
  width: 100%;
  height: auto;
}

.spark-grid {
  stroke: var(--chart-grid);
  stroke-width: 1;
}

.spark-area {
  stroke: none;
}

.spark-area.en {
  fill: var(--chart-primary-area);
}

.spark-area.zh {
  fill: var(--chart-err-area);
}

.spark-legend,
.spark-date {
  fill: var(--muted);
}

.spark-legend {
  font-size: 7.5px;
}

.spark-date {
  font-size: 10px;
}

.spark-line {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.spark-line.en {
  stroke: var(--primary);
}

.spark-line.zh {
  stroke: var(--err);
}

.spark-dot.en {
  fill: var(--primary);
}

.spark-dot.zh {
  fill: var(--err);
}

/* 練習：薄狀態列、全關進度與陪打寵物 */
.play-card {
  padding: 18px;
}

.play-topline {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
}

.play-topline h2 {
  margin: 0;
  overflow: hidden;
  font-size: 19px;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.play-exit {
  min-height: 38px;
  padding: 7px 13px;
  font-size: 13px;
}

.play-status {
  display: flex;
  align-items: flex-end;
  flex-direction: column;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.4;
  white-space: nowrap;
}

.play-timer {
  color: var(--primary-deep);
  font: inherit;
}

.play-bar {
  height: 9px;
  margin: 14px 0 16px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--panel2);
}

.play-bar-fill {
  width: 0;
  height: 100%;
  background: var(--amber);
  transition: width .18s ease-out;
}

.typing-stage {
  position: relative;
}

.play-target {
  min-height: 230px;
  padding: 24px 118px 82px 24px;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--panel2);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: .045em;
  line-height: 1.85;
  word-break: break-all;
}

.play-target .done {
  color: var(--ok);
}

.play-target .cur {
  border-radius: 4px;
  background: var(--amber);
  box-shadow: inset 0 0 0 2px var(--amber-ink);
  color: var(--ink);
}

.play-target .cur.err {
  background: var(--err);
  box-shadow: inset 0 0 0 2px var(--err-deep);
  color: var(--white);
  animation: type-error-flash .2s ease-out;
}

.play-target .bad {
  color: var(--err);
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

.play-target .gap {
  margin-right: 14px;
}

.play-pet-wrap {
  position: absolute;
  right: 14px;
  bottom: 12px;
  display: flex;
  width: 98px;
  min-height: 112px;
  align-items: center;
  justify-content: flex-end;
  flex-direction: column;
  pointer-events: none;
  transform-origin: bottom center;
}

.play-pet-wrap img {
  width: 84px;
  height: 84px;
  object-fit: contain;
}

.play-combo {
  position: relative;
  z-index: 1;
  margin-bottom: -5px;
  padding: 2px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--panel);
  color: var(--primary-deep);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.play-combo-pop {
  position: absolute;
  top: -12px;
  left: 50%;
  z-index: 2;
  color: var(--amber-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  opacity: 0;
  transform: translate(-50%, 8px);
  white-space: nowrap;
}

.play-combo-pop.show {
  animation: combo-pop .8s ease-out both;
}

.play-pet-wrap.bounce img {
  animation: pet-bounce .4s ease-out;
}

.play-pet-wrap.shake img {
  animation: pet-shake .2s ease-in-out;
}

.play-progress {
  margin: 12px 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: center;
}

.zh-input {
  display: block;
  width: 100%;
  min-height: 54px;
  margin: 14px 0 0;
  padding: 12px 14px;
  border: 2px solid var(--line-strong);
  border-radius: var(--radius-button);
  background: var(--panel);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 18px;
  line-height: 1.5;
  resize: none;
  transition: border-color .12s, box-shadow .12s;
}

.zh-input:focus,
.zh-input.is-composing {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
  outline: 0;
}

@keyframes type-error-flash {
  50% { transform: translateX(2px); }
}

@keyframes pet-bounce {
  0%, 100% { transform: translateY(0) scale(1); }
  45% { transform: translateY(-13px) scale(1.06); }
  70% { transform: translateY(2px) scale(.98); }
}

@keyframes pet-shake {
  0%, 100% { transform: translateX(0); }
  30% { transform: translateX(-4px) rotate(-2deg); }
  70% { transform: translateX(4px) rotate(2deg); }
}

@keyframes combo-pop {
  0% { opacity: 0; transform: translate(-50%, 8px) scale(.85); }
  25% { opacity: 1; transform: translate(-50%, 0) scale(1); }
  75% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -12px) scale(1); }
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 18px 0;
}

.result-card {
  max-width: 620px;
  overflow: hidden;
  text-align: center;
}

.result-card .eyebrow {
  margin-bottom: 4px;
}

.result-pet {
  display: block;
  width: 160px;
  height: 160px;
  margin: -4px auto 2px;
  object-fit: contain;
}

.result-pet.enter {
  animation: result-pet-enter .35s ease-out both;
}

.result-num {
  padding: 16px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--panel2);
  text-align: center;
}

.result-num span {
  display: block;
  color: var(--primary-deep);
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
}

.result-num.xp span {
  color: var(--ok);
}

.result-num small {
  color: var(--muted);
  font-size: 12px;
}

.result-card #res-detail {
  min-height: 0;
  margin: 8px 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.save-err {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 10px 0;
  padding: 10px 12px;
  border: 1px solid var(--err);
  border-radius: var(--radius-button);
  background: var(--err-soft);
  color: var(--err-deep);
  font-size: 14px;
  font-weight: 500;
}

.save-err button {
  min-height: 38px;
  padding: 7px 13px;
  font-size: 13px;
}

.res-star {
  min-height: 66px;
  margin: 9px 0 3px;
  text-align: center;
}

.result-star-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.result-star {
  display: inline-block;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 38px;
  line-height: 1;
  opacity: 0;
  animation: star-reveal .35s var(--star-delay) ease-out both;
}

.result-star.earned {
  animation-name: star-bounce;
}

.result-star.empty {
  color: var(--line-strong);
}

.res-star .star-bonus {
  display: block;
  margin-top: 7px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.res-star .article-reward {
  display: inline-block;
  margin-top: 17px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--amber-soft);
  color: var(--amber-ink);
}

.res-compare {
  min-height: 18px;
  margin: 4px 0 12px;
  color: var(--primary-deep);
  font-size: 14px;
  text-align: center;
}

.result-xp-track {
  margin: 16px 0 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-button);
  background: var(--panel2);
  text-align: left;
}

.result-xp-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 7px;
  color: var(--primary-deep);
  font-size: 12px;
  font-weight: 700;
}

#res-xp-range {
  font-family: var(--font-mono);
}

.res-tonext {
  margin: 9px 0 13px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}

.result-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 15px;
}

@keyframes result-pet-enter {
  from { opacity: 0; transform: scale(.8); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes star-reveal {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes star-bounce {
  0% { opacity: 0; transform: scale(.35) rotate(-12deg); }
  65% { opacity: 1; transform: scale(1.24) rotate(5deg); }
  100% { opacity: 1; transform: scale(1) rotate(0); }
}

.evo-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: radial-gradient(circle at center, var(--panel) 0, var(--amber-soft) 38%, var(--bg2) 72%, var(--primary-soft) 100%);
}

.evo-overlay.show {
  display: flex;
}

.evo-card {
  position: relative;
  width: min(100%, 460px);
  max-height: calc(100vh - 32px);
  overflow: auto;
  padding: 34px 28px 28px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--panel);
  box-shadow: 0 14px 38px var(--card-shadow-hover-color);
  text-align: center;
}

.evo-burst {
  position: absolute;
  inset: 14px;
  border-radius: 50%;
  background: repeating-conic-gradient(from 4deg, var(--amber-soft) 0deg 8deg, var(--transparent) 8deg 20deg);
  opacity: .58;
  pointer-events: none;
  transform: scale(.7) rotate(0);
}

.evo-card .pet-frame.big {
  position: relative;
  width: 200px;
  height: 200px;
  margin: 0 auto;
  border-color: var(--amber);
  background: var(--panel);
}

.evo-stage {
  position: relative;
  margin-bottom: 10px;
  color: var(--primary-deep);
  font-size: 18px;
  font-weight: 700;
}

.evo-card h2,
.evo-card button {
  position: relative;
}

.evo-card.animate {
  animation: evo-card-enter .4s ease-out both;
}

.evo-card.animate .evo-burst {
  animation: evo-burst-in .75s ease-out both;
}

.evo-card.animate h2 {
  animation: evo-name-reveal .5s .22s ease-out both;
}

@keyframes evo-card-enter {
  from { opacity: 0; transform: translateY(12px) scale(.92); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes evo-burst-in {
  from { opacity: 0; transform: scale(.45) rotate(-16deg); }
  to { opacity: .58; transform: scale(1) rotate(0); }
}

@keyframes evo-name-reveal {
  from { opacity: 0; letter-spacing: .15em; transform: translateY(6px); }
  to { opacity: 1; letter-spacing: normal; transform: translateY(0); }
}

/* 教師查榜舊頁相容 */
.inline-form {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}

.inline-form input {
  margin-top: 0;
}

.rank-table {
  display: block;
  width: 100%;
  margin-top: 10px;
  overflow-x: auto;
  border-collapse: collapse;
  white-space: nowrap;
}

.rank-table thead,
.rank-table tbody {
  display: table;
  width: 100%;
  table-layout: fixed;
}

.rank-table th,
.rank-table td {
  padding: 10px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-align: left;
}

.rank-table th {
  color: var(--muted);
  font-size: 13px;
}

.rank-table tr:hover {
  background: var(--panel2);
}

.student-curve {
  margin: 4px 0 8px;
}

.student-curve:empty {
  display: none;
}

.curve-title {
  color: var(--primary-deep);
}

/* 中尺寸：561–900px */
@media (min-width: 561px) and (max-width: 900px) {
  .egg-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .egg-preview {
    grid-template-columns: 1fr;
  }

  .egg-preview-copy {
    text-align: center;
  }

  .egg-confirm {
    justify-self: center;
  }

  .pet-banner {
    grid-template-columns: 108px minmax(0, 1fr);
  }

  .pet-banner .specimen-frame {
    width: 108px;
    height: 108px;
  }

  .pet-banner-side {
    grid-column: 1 / -1;
    max-width: none;
    flex-direction: row;
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .lesson-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 小尺寸：≤560px */
@media (max-width: 560px) {
  .topbar {
    gap: 8px;
    padding-inline: 12px;
  }

  .brand {
    font-size: 14px;
  }

  .badge {
    padding-inline: 8px;
    font-size: 10px;
  }

  main {
    padding: 16px 10px 48px;
  }

  .card {
    padding: 18px;
  }

  .login-card {
    padding: 28px 20px 22px;
  }

  .egg-list {
    grid-template-columns: 1fr;
  }

  .egg-card {
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    column-gap: 12px;
    text-align: left;
  }

  .egg-card img {
    grid-row: 1 / 3;
    width: 76px;
    margin: 0;
  }

  .egg-sub {
    min-height: 0;
  }

  .egg-preview {
    grid-template-columns: 1fr;
    gap: 13px;
    padding: 14px;
  }

  .egg-stages {
    gap: 2px;
  }

  .egg-stage img {
    width: 40px;
    height: 40px;
  }

  .egg-confirm {
    width: 100%;
  }

  .pet-banner {
    grid-template-columns: 1fr;
    gap: 15px;
    padding: 18px;
    text-align: center;
  }

  .pet-banner .specimen-frame {
    width: 112px;
    height: 112px;
    margin: 0 auto;
  }

  .pet-banner-head,
  .pet-banner-sub {
    justify-content: center;
  }

  .pet-banner-sub {
    flex-direction: column;
    align-items: center;
    gap: 2px;
  }

  .pet-tonext {
    text-align: center;
  }

  .pet-stats {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    row-gap: 12px;
  }

  .pet-stats > div {
    grid-column: span 2;
  }

  .pet-stats > div:nth-child(n + 4) {
    grid-column: span 3;
  }

  .pet-banner-side {
    width: 100%;
    max-width: none;
  }

  .pet-banner-side .msg {
    text-align: center;
  }

  .lesson-tabs {
    gap: 5px;
  }

  .lesson-tab {
    padding-inline: 7px;
    font-size: 13px;
  }

  .chapter-card summary {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 8px;
    padding: 12px;
  }

  .chapter-card summary::after {
    display: none;
  }

  .chapter-title small {
    display: none;
  }

  .lesson-grid {
    grid-template-columns: repeat(auto-fill, 44px);
    gap: 9px;
    justify-content: center;
    padding: 14px 10px 18px;
  }

  .lesson-btn.lesson-node {
    width: 44px;
    min-height: 44px;
    padding: 4px 2px;
  }

  .lesson-number {
    font-size: 13px;
  }

  .lesson-star {
    font-size: 8px;
  }

  .article-grid {
    grid-template-columns: 1fr;
    justify-content: stretch;
  }

  .lesson-btn.article-btn {
    width: 100%;
  }

  .progress-head {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .play-target {
    min-height: 260px;
    padding: 16px 14px 76px;
    font-size: 18px;
    letter-spacing: .025em;
  }

  .play-card {
    padding: 14px;
  }

  .play-topline {
    gap: 7px;
  }

  .play-topline h2 {
    font-size: 15px;
  }

  .play-exit {
    min-height: 36px;
    padding: 6px 9px;
    font-size: 12px;
  }

  .play-status {
    font-size: 9px;
  }

  .play-pet-wrap {
    right: 8px;
    bottom: 8px;
    width: 66px;
    min-height: 80px;
  }

  .play-pet-wrap img {
    width: 56px;
    height: 56px;
  }

  .play-combo {
    padding-inline: 6px;
    font-size: 8px;
  }

  .play-progress {
    font-size: 10px;
  }

  .result-card {
    padding-inline: 13px;
  }

  .result-grid {
    gap: 6px;
  }

  .result-num {
    padding: 12px 4px;
  }

  .result-num span {
    font-size: 22px;
  }

  .result-num small {
    font-size: 10px;
  }

  .result-xp-track {
    padding-inline: 11px;
  }

  .save-err,
  .inline-form {
    align-items: stretch;
    flex-direction: column;
  }

  .pet-frame.big {
    width: min(220px, 74vw);
    height: min(220px, 74vw);
  }
}

@media (prefers-reduced-motion: reduce) {
  button,
  .chapter-card,
  .xp-bar-fill,
  .play-bar-fill {
    transition: none;
  }

  .play-target .cur.err,
  .play-combo-pop.show,
  .play-pet-wrap.bounce img,
  .play-pet-wrap.shake img,
  .result-pet.enter,
  .result-star,
  .evo-card.animate,
  .evo-card.animate .evo-burst,
  .evo-card.animate h2 {
    animation-duration: .01ms;
    animation-delay: 0ms;
  }
}