/* Shared colours and celebration layers come from the original game. */
.fork-label { margin: 0; font-size: 12px; text-align: center; }
.subject-selector { display: flex; gap: 10px; width: 100%; justify-content: center; }
.subject-selector > * { min-height: 48px; padding: 9px 20px; border: 3px solid var(--ink); border-radius: 16px; background: #fff; font-size: 19px; }
.subject-current { background: var(--yellow); display: grid; place-items: center; }
.subject-selector button { background: var(--mint); box-shadow: 0 4px 0 var(--ink); }
.subject-selector small { display: block; font-size: 12px; }
.license-link { color: var(--ink); font-size: 13px; padding: 14px 2px; text-align: center; }
body.learning-mode #app { width: min(100vw, 760px); height: 100dvh; max-height: none; top: 0; }
body.learning-mode #fx, body.learning-mode #cutins { z-index: 1; }
body.learning-mode.lesson-celebrating #fx { z-index: 4; }
body.learning-mode #flash { display: none; }
body.writing #fx, body.writing #fx-back, body.writing #bg { opacity: .14; }
body.writing #actors { opacity: .2; }
.learning-screen { flex-direction: column; gap: 14px; padding: max(18px, env(safe-area-inset-top)) 18px max(24px, env(safe-area-inset-bottom)); overflow-y: auto; overscroll-behavior: contain; }
.learning-screen > * { flex-shrink: 0; }
.lesson-head { min-height: 52px; display: flex; align-items: center; justify-content: space-between; gap: 8px; padding-right: 48px; }
.lesson-head .lesson-button { padding: 10px; font-size: 14px; white-space: nowrap; }
.lesson-head .subject-label { font-size: 14px; white-space: nowrap; }
.subject-label { font-size: 15px; color: var(--ink); background: var(--paper); padding: 6px; border-radius: 8px; }
.subject-heading { font-size: clamp(26px, 5vw, 34px); margin: 5px 0 0; }
.subject-intro, .subject-note, .subject-summary { margin: 0; font-size: 15px; line-height: 1.7; }
.subject-note { opacity: .85; }
.skill-picker { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.skill-picker button { border: 2px solid var(--ink); border-radius: 12px; background: #fff; padding: 9px 5px; min-height: 48px; font-size: 14px; }
.skill-picker button[aria-pressed="true"] { background: var(--blue); color: #fff; }
.unit-label { display: flex; align-items: center; gap: 12px; }
.unit-label select { flex: 1; min-height: 44px; padding: 8px; font: inherit; color: var(--ink); border: 2px solid var(--ink); border-radius: 10px; background: #fff; }
.lesson-button, .lesson-primary { min-height: 46px; padding: 10px 14px; border: 2.5px solid var(--ink); border-radius: 14px; background: #fff; font: inherit; box-shadow: 0 3px 0 var(--ink); }
.lesson-primary { background: var(--yellow); font-size: 19px; font-weight: 900; width: 100%; min-height: 54px; }
.lesson-button:active, .lesson-primary:active, .lesson-choice:active { transform: translateY(2px); box-shadow: none; }
.learning-screen button:disabled { opacity: .5; cursor: default; box-shadow: none; }
.learning-screen [hidden] { display: none !important; }
.kanji-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.kanji-tile { position: relative; border: 2px solid var(--ink); border-radius: 14px; background: #fff; min-height: 70px; font-size: 32px; padding: 8px 6px 19px; font-family: "Yu Kyokasho", "Hiragino Mincho ProN", "Yu Mincho", serif; }
.kanji-tile small { position: absolute; bottom: 4px; right: 9px; font-size: 12px; font-family: var(--round); color: #385583; }
.kanji-tile[data-state="done"] { background: #e0f8ef; }
.kanji-tile[data-state="mastered"] { background: #fff2b1; }
.backup-panel { background: var(--paper); border: 2px solid var(--ink); border-radius: 16px; padding: 14px; font-size: 14px; line-height: 1.7; }
.backup-panel summary { min-height: 44px; cursor: pointer; padding: 9px 0; }
.backup-panel .lesson-button { display: inline-flex; align-items: center; margin: 5px 6px 5px 0; }
.file-label { position: relative; cursor: pointer; }
.file-label input { width: 1px; height: 1px; position: absolute; opacity: 0; }
.file-label:focus-within { outline: 4px solid var(--yellow); }
.storage-warning { border: 2px solid var(--red); border-radius: 12px; background: #fff; padding: 12px; }
.lesson-counter { display: flex; align-items: center; gap: 14px; font-size: 15px; }
.lesson-counter progress { flex: 1; width: 100%; height: 12px; accent-color: var(--blue); }
.lesson-dopa { display: grid; grid-template-columns: 1fr auto; gap: 7px 12px; background: #fffdf8; border: 2px solid var(--ink); border-radius: 16px; padding: 10px 14px; box-shadow: 0 3px 0 var(--ink); }
.lesson-dopa-head { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 13px; }
.lesson-dopa-head b { font-size: 18px; color: #a62c6a; }
#lesson-dopa-level { font-size: 25px; margin-left: 3px; }
.lesson-dopa-meter { height: 16px; border: 2px solid var(--ink); border-radius: 20px; background: #e8e8f2; align-self: center; overflow: hidden; }
.lesson-dopa-meter i { display: block; height: 100%; width: var(--dopa-fill, 10%); background: linear-gradient(90deg, #ff7ab6, #ffd23f, #3fdcb0); transition: width .4s ease-out; }
.lesson-dopa-meter[data-full="true"] i { background: repeating-linear-gradient(110deg, #ff7ab6 0 20px, #ffd23f 20px 40px, #3fdcb0 40px 60px, #8fd3ff 60px 80px); background-size: 200% 100%; animation: lesson-meter-party 3s linear infinite; }
#lesson-chain { font-size: 13px; align-self: center; font-weight: 900; }
.lesson-card { background: #fffdf8; border: 3px solid var(--ink); border-radius: 24px; padding: 20px; box-shadow: 0 6px 0 var(--ink); display: flex; flex-direction: column; gap: 14px; }
.lesson-card.lesson-success { border-color: #c32a73; box-shadow: 0 6px 0 #c32a73, 0 0 0 5px #ffd23f; animation: lesson-card-pop .38s ease-out; }
#lesson-reward { position: fixed; z-index: 6; left: 50%; top: clamp(155px, 28vh, 275px); width: min(84vw, 360px); height: 255px; margin-left: calc(min(84vw, 360px) / -2); pointer-events: none; animation: lesson-reward-pop 1.5s both; }
#lesson-reward[hidden] { display: none; }
.lesson-reward-burst, .lesson-finale-burst { position: absolute; inset: 0; background: #ffd23f; clip-path: polygon(50% 0, 58% 16%, 75% 4%, 77% 23%, 96% 25%, 84% 42%, 100% 50%, 84% 58%, 96% 75%, 77% 77%, 75% 96%, 58% 84%, 50% 100%, 42% 84%, 25% 96%, 23% 77%, 4% 75%, 16% 58%, 0 50%, 16% 42%, 4% 25%, 23% 23%, 25% 4%, 42% 16%); }
.lesson-reward-burst { transform: rotate(-8deg); }
#lesson-reward[data-big="true"] .lesson-reward-burst { background: linear-gradient(120deg, #ff7ab6, #ffd23f 45%, #3fdcb0); }
.lesson-reward-content { position: relative; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; transform: rotate(-5deg); gap: 4px; color: var(--ink); }
#lesson-reward-kanji { font-family: "Yu Kyokasho", "Hiragino Mincho ProN", "Yu Mincho", serif; font-size: 100px; font-weight: 900; line-height: 1.1; -webkit-text-stroke: 7px #fff; paint-order: stroke fill; }
#lesson-reward-title { font-size: clamp(23px, 6vw, 28px); background: #fff; border: 3px solid var(--ink); border-radius: 12px; padding: 4px 14px; box-shadow: 0 4px 0 var(--ink); }
#lesson-reward-detail { font-size: 17px; font-weight: 900; background: #fff; padding: 2px 10px; border-radius: 10px; }
.lesson-hanamaru { position: absolute; width: 108px; height: 108px; top: 4px; right: 18px; transform: rotate(12deg); }
.lesson-hanamaru path { stroke-dasharray: 1; animation: lesson-mark-draw .55s ease-out both; }
#lesson-prompt { margin: 0; font-size: clamp(19px, 3.3vw, 25px); line-height: 1.6; }
#lesson-prompt:focus { outline: none; }
#lesson-renderer { display: flex; flex-direction: column; align-items: stretch; gap: 14px; }
.lesson-context { font-size: 16px; line-height: 1.8; background: #f0f3fc; border-radius: 12px; padding: 12px; margin: 0; }
.lesson-choices { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.lesson-choice { min-height: 66px; background: #fff; border: 2.5px solid var(--ink); border-radius: 16px; box-shadow: 0 3px 0 var(--ink); font-size: clamp(18px, 3.4vw, 25px); padding: 10px; overflow-wrap: anywhere; }
.lesson-choice[aria-pressed="true"] { background: var(--blue-soft); outline: 3px solid var(--blue); outline-offset: 1px; }
.lesson-choice.choice-miss { background: #fff0d3; border-color: #a85d22; }
.kanji-choice { font-family: "Yu Kyokasho", "Hiragino Mincho ProN", "Yu Mincho", serif; }
#lesson-feedback { font-size: 15px; line-height: 1.8; margin: 0; min-height: 54px; background: #f0f3fc; padding: 10px 12px; border-radius: 12px; }
#lesson-feedback[data-state="correct"] { background: #dcf6ed; }
#lesson-feedback[data-state="retry"] { background: #fff0d3; }
.kanji-board { display: block; align-self: center; width: min(100%, 360px); aspect-ratio: 1; background: #fff; border: 2px solid #b9c6e6; border-radius: 12px; }
.writing-grid { fill: none; stroke: #dce4f4; stroke-width: .5; stroke-dasharray: 2 2; }
.kanji-guide { fill: none; stroke: #b8c3d8; stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.guide-soft .kanji-guide { opacity: .35; }
.showing-stroke { transition: stroke-dashoffset .55s linear; stroke: var(--blue); }
body.reduced .showing-stroke { transition: none; }
.trace-area { touch-action: none; cursor: crosshair; -webkit-user-select: none; user-select: none; }
.user-ink { stroke: #1b1d4d; stroke-width: 3.6; stroke-linecap: round; stroke-linejoin: round; fill: none; pointer-events: none; }
.ink-accepted { stroke: #218564; }
.stroke-status { text-align: center; font-size: 15px; margin: 0; }
.trace-tools { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.trace-tools .lesson-button { font-size: 14px; }
.lesson-result-card { text-align: center; margin-top: 8px; }
#lesson-result-stage { position: relative; height: 142px; }
.lesson-finale-burst { width: 220px; left: 50%; margin-left: -110px; background: linear-gradient(120deg, #ff7ab6, #ffd23f 50%, #3fdcb0); }
.lesson-result-dopa { align-self: center; border: 2px solid var(--ink); border-radius: 20px; background: var(--yellow); padding: 5px 14px; font-size: 17px; font-weight: 900; }
.lesson-result-card h2, .lesson-result-card p { margin: 0; }
.lesson-result-score { color: var(--blue); font-size: 23px; }
.lesson-result-score strong { font-size: 70px; margin-right: 8px; }
body.reduced .lesson-card.lesson-success, body.reduced .lesson-dopa-meter i, body.reduced .lesson-hanamaru path { animation: none; transition: none; }
@keyframes lesson-card-pop { 50% { transform: scale(calc(1 + var(--lesson-pop, .035))); } }
@keyframes lesson-reward-pop { 0% { opacity: 0; transform: scale(var(--reward-start, .45)) rotate(var(--reward-spin, -12deg)); } 18% { opacity: 1; transform: scale(var(--reward-over, 1.06)); } 28%, 75% { opacity: 1; transform: scale(1); } 100% { opacity: 0; transform: scale(var(--reward-over, 1.06)) translateY(var(--reward-rise, -25px)); } }
@keyframes lesson-mark-draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@keyframes lesson-meter-party { to { background-position: 200% 0; } }
@media (min-width: 600px) { .kanji-list { grid-template-columns: repeat(8, 1fr); } .learning-screen { padding-left: 32px; padding-right: 32px; } }
@media (min-width: 600px) and (max-height: 850px) {
  #lesson-renderer.has-kanji { display: grid; grid-template-columns: minmax(240px, 1.25fr) minmax(160px, 1fr); align-items: center; gap: 18px; }
  #lesson-renderer.has-kanji .kanji-board { grid-column: 1; grid-row: 1 / span 2; width: 100%; max-width: 330px; }
  #lesson-renderer.has-kanji .stroke-status { grid-column: 2; grid-row: 1; align-self: end; }
  #lesson-renderer.has-kanji .trace-tools, #lesson-renderer.has-kanji > .lesson-button { grid-column: 2; grid-row: 2; align-self: start; }
}
@media (max-width: 380px) { .learning-screen { padding-left: 12px; padding-right: 12px; } .lesson-card { padding: 14px; } .lesson-head { flex-wrap: wrap; } .kanji-list { gap: 6px; } }
@media (prefers-reduced-motion: reduce) { .showing-stroke { transition: none; } }