:root {
  color-scheme: light;
  font-family: "KaiTi", "STKaiti", "Microsoft YaHei", system-ui, sans-serif;
  --ink: #242525;
  --paper: #f7f5ee;
  --mustard: #efb834;
  --coral: #e46c54;
  --line: rgba(115, 126, 126, 0.17);
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; background: #d9d6ce; color: var(--ink); user-select: none; -webkit-user-select: none; touch-action: none; -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
#app { position: fixed; inset: 0; display: grid; place-items: center; background: radial-gradient(circle at 50% 45%, rgba(255,255,255,.9), rgba(226,222,211,.86) 65%), repeating-linear-gradient(0deg, transparent 0 23px, rgba(61,68,67,.08) 23px 24px), repeating-linear-gradient(90deg, transparent 0 23px, rgba(61,68,67,.08) 23px 24px); }
.game-shell { position: relative; width: min(100vw, calc(100vh * 20 / 9)); height: min(100vh, calc(100vw * 9 / 20)); max-width: 1600px; max-height: 720px; min-width: 720px; min-height: 324px; overflow: hidden; background-color: var(--paper); background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 28px 28px; box-shadow: 0 14px 46px rgba(28, 32, 29, .28); }
.game-shell::after { content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 80; opacity: .18; mix-blend-mode: multiply; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E"); }
.screen { position: absolute; inset: 0; opacity: 0; transform: scale(1.015); pointer-events: none; transition: opacity 220ms ease, transform 220ms ease; }
.screen.active { opacity: 1; transform: scale(1); pointer-events: auto; }
.home-screen { display: grid; place-items: center; background: #f8f6ee url("./assets/tea-adventure-title.png") center / cover no-repeat; }
.home-screen::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(250,248,241,.06), rgba(250,248,241,.44) 35% 65%, rgba(250,248,241,.06)); }
.home-card { position: relative; z-index: 2; width: min(560px, 56%); margin-top: -1%; text-align: center; }
.title-ribbon { margin: 0; color: #e7a91f; font-size: clamp(54px, 7vw, 112px); line-height: .92; letter-spacing: -.1em; -webkit-text-stroke: clamp(2px, .32vw, 5px) var(--ink); paint-order: stroke fill; text-shadow: 0 8px 0 rgba(255,255,255,.75), 5px 12px 0 rgba(42,46,44,.13); transform: rotate(-2deg); }
.title-ribbon small { display: block; margin-top: 14px; color: var(--ink); font-family: "Microsoft YaHei", system-ui, sans-serif; font-size: clamp(10px, 1vw, 16px); font-weight: 800; letter-spacing: .38em; -webkit-text-stroke: 0; text-shadow: none; transform: rotate(2deg); }
.paper-button { position: relative; min-width: 170px; padding: 12px 28px 10px; border: 3px solid var(--ink); border-radius: 48% 42% 47% 44% / 43% 49% 42% 46%; color: var(--ink); background: #fffdf7; box-shadow: 4px 5px 0 rgba(36,37,37,.92); font-weight: 900; font-size: clamp(18px, 1.8vw, 28px); cursor: pointer; transition: transform 90ms ease, box-shadow 90ms ease, filter 100ms ease; }
.paper-button:hover { filter: brightness(1.03); transform: translateY(-2px); }
.paper-button:active { transform: translate(3px, 4px); box-shadow: 1px 1px 0 rgba(36,37,37,.92); }
.paper-button.primary { background: var(--mustard); }
.paper-button.small { min-width: 116px; padding: 8px 16px; font-size: clamp(14px, 1.2vw, 19px); }
.home-actions { display: flex; justify-content: center; gap: 18px; margin-top: clamp(24px, 5vh, 46px); }
.edition-note { margin-top: 22px; font-family: "Microsoft YaHei", system-ui, sans-serif; font-size: clamp(10px, .9vw, 14px); font-weight: 700; letter-spacing: .16em; opacity: .68; }
.icon-button { display: grid; place-items: center; min-width: 50px; height: 44px; padding: 0 13px; border: 3px solid var(--ink); border-radius: 14px 11px 13px 9px; color: var(--ink); background: rgba(255,253,247,.95); box-shadow: 2px 3px 0 rgba(36,37,37,.75); font-weight: 900; font-size: 16px; cursor: pointer; }
.icon-button:active { transform: translate(2px, 2px); box-shadow: none; }
.corner-actions { position: absolute; top: 4%; left: 3%; z-index: 8; display: flex; gap: 10px; }
.level-screen { display: grid; place-items: center; padding: 7% 12% 5%; background: rgba(86,83,78,.36); }
.level-paper { position: relative; width: min(820px, 76%); min-height: 80%; padding: 6% 7% 8%; background: #fbfaf5; border: 3px solid var(--ink); border-radius: 4px 13px 6px 15px; box-shadow: 8px 12px 0 rgba(36,37,37,.19); transform: rotate(-.35deg); }
.level-paper::before, .level-paper::after { content: ""; position: absolute; width: 38px; height: 28px; background: rgba(225,206,153,.58); border: 1px solid rgba(91,75,46,.16); transform: rotate(-8deg); }
.level-paper::before { top: -13px; left: 12%; }
.level-paper::after { right: 12%; bottom: -12px; transform: rotate(7deg); }
.level-heading { position: absolute; top: -25px; left: 50%; transform: translateX(-50%) rotate(1deg); margin: 0; padding: 8px 34px; border: 3px solid var(--ink); background: #fffdf7; font-size: clamp(23px, 2.4vw, 38px); white-space: nowrap; }
.level-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: clamp(18px, 3.1vw, 42px) clamp(20px, 4.5vw, 60px); }
.level-pager { position: absolute; left: 50%; bottom: 2.4%; transform: translateX(-50%); display: flex; align-items: center; gap: 16px; font-family: system-ui, sans-serif; font-weight: 900; }
.level-pager .icon-button { min-width: 82px; height: 36px; font-size: 14px; }
.level-pager .icon-button:disabled { opacity: .32; cursor: not-allowed; }
.level-card { position: relative; aspect-ratio: .78; padding: 0; border: 3px solid var(--ink); border-radius: 6px 10px 4px 12px; background: #fff; box-shadow: 4px 5px 0 rgba(36,37,37,.85); color: var(--ink); font-size: clamp(30px, 4vw, 58px); font-weight: 900; cursor: pointer; transform: rotate(var(--tilt, 0deg)); }
.level-card::after { content: attr(data-stars); position: absolute; left: 50%; bottom: -24px; transform: translateX(-50%); color: var(--mustard); font-family: system-ui, sans-serif; font-size: clamp(13px, 1.3vw, 19px); letter-spacing: 2px; -webkit-text-stroke: 1px var(--ink); white-space: nowrap; }
.level-card:hover:not(:disabled) { transform: rotate(var(--tilt, 0deg)) translateY(-4px); }
.level-card:active:not(:disabled) { transform: rotate(var(--tilt, 0deg)) translate(3px, 4px); box-shadow: 1px 1px 0 var(--ink); }
.level-card:disabled { background: #252525; color: #f1ede4; cursor: not-allowed; opacity: .94; }
.level-card:disabled::after { color: #777; -webkit-text-stroke: 0; }
.game-screen { background: transparent; }
#game-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.game-toolbar { position: absolute; top: 4%; left: 2.6%; z-index: 12; display: flex; align-items: center; gap: 9px; }
.level-pill { padding: 7px 13px; border: 3px solid var(--ink); border-radius: 13px 10px 12px 8px; background: rgba(255,253,247,.95); box-shadow: 2px 3px 0 rgba(36,37,37,.76); font-size: clamp(14px, 1.3vw, 21px); font-weight: 900; }
.goal-copy { position: absolute; top: 12.5%; left: 50%; z-index: 9; max-width: 66%; transform: translateX(-50%) rotate(-.5deg); margin: 0; padding: 3px 22px; border-radius: 14px 9px 13px 10px; background: rgba(247,245,238,.82); box-shadow: 0 2px 0 rgba(36,37,37,.12); font-size: clamp(20px, 2.2vw, 36px); font-weight: 500; line-height: 1.15; text-align: center; white-space: nowrap; }
.hint-card { position: absolute; top: 19%; left: 7%; z-index: 15; width: min(230px, 28%); padding: 13px 18px; border: 3px solid var(--ink); border-radius: 52% 44% 48% 46% / 46% 54% 43% 56%; background: #fffdf7; box-shadow: 3px 4px 0 rgba(36,37,37,.66); font-size: clamp(13px, 1.15vw, 18px); font-weight: 700; opacity: 0; transform: translateY(-8px) scale(.95); pointer-events: none; transition: .16s ease; }
.hint-card.visible { opacity: 1; transform: translateY(0) scale(1); }
.hint-card::after { content: ""; position: absolute; left: 30%; bottom: -16px; width: 20px; height: 20px; background: #fffdf7; border-right: 3px solid var(--ink); border-bottom: 3px solid var(--ink); transform: rotate(45deg); }
.touch-controls { position: absolute; inset: auto 3.5% 5% 3.5%; z-index: 20; display: flex; justify-content: space-between; pointer-events: none; }
.move-controls, .jump-controls { display: flex; gap: 13px; }
.control-button { width: clamp(54px, 5vw, 82px); height: clamp(48px, 4.6vw, 74px); display: grid; place-items: center; border: 3px solid var(--ink); border-radius: 17px 12px 15px 10px; color: var(--ink); background: rgba(255,253,247,.79); box-shadow: 4px 5px 0 rgba(36,37,37,.68); font-family: system-ui, sans-serif; font-size: clamp(24px, 2.5vw, 40px); font-weight: 900; pointer-events: auto; touch-action: none; }
.control-button.jump { width: clamp(68px, 6vw, 96px); border-radius: 50%; background: rgba(239,184,52,.84); font-family: "KaiTi", serif; font-size: clamp(17px, 1.6vw, 25px); }
.control-button.pressed, .control-button:active { transform: translate(3px, 4px); box-shadow: 1px 1px 0 var(--ink); }
.keypad-backdrop, .result-backdrop { position: absolute; inset: 0; z-index: 40; display: grid; place-items: center; background: rgba(44,45,43,.62); opacity: 0; pointer-events: none; transition: opacity 180ms ease; }
.keypad-backdrop.visible, .result-backdrop.visible { opacity: 1; pointer-events: auto; }
.keypad { position: relative; width: min(270px, 29%); padding: 18px 21px 20px; border: 4px solid var(--ink); border-radius: 20px 14px 22px 12px; background: #fffdf7; box-shadow: 8px 10px 0 rgba(36,37,37,.55); transform: rotate(.7deg); }
.keypad-display { height: 50px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-bottom: 12px; }
.keypad-display span { display: grid; place-items: center; border: 3px solid var(--ink); border-radius: 6px; color: #fff; background: #202121; font-family: system-ui, sans-serif; font-size: 24px; font-weight: 900; }
.keypad-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.keypad-grid button { height: 42px; border: 3px solid var(--ink); border-radius: 7px 9px 6px 10px; background: #fff; color: var(--ink); font-family: system-ui, sans-serif; font-size: 20px; font-weight: 900; cursor: pointer; }
.keypad-grid button:active { background: var(--mustard); transform: translateY(2px); }
.keypad-close { position: absolute; right: -14px; top: -15px; width: 36px; height: 36px; padding: 0; border: 3px solid var(--ink); border-radius: 50%; background: #fff; font-weight: 900; cursor: pointer; }
.result-paper { width: min(470px, 54%); padding: 30px 38px 28px; border: 4px solid var(--ink); border-radius: 10px 17px 8px 19px; background: #fffdf7; box-shadow: 9px 12px 0 rgba(36,37,37,.48); text-align: center; transform: rotate(-.5deg); }
.result-paper h2 { margin: 0; color: var(--coral); font-size: clamp(42px, 5vw, 72px); line-height: 1; }
.result-stars { margin: 10px 0 4px; color: var(--mustard); font-family: system-ui, sans-serif; font-size: clamp(34px, 4vw, 58px); letter-spacing: .2em; -webkit-text-stroke: 2px var(--ink); }
.result-paper p { margin: 8px 0 22px; font-size: clamp(15px, 1.4vw, 22px); font-weight: 700; }
.result-actions { display: flex; justify-content: center; gap: 14px; }
.toast { position: absolute; left: 50%; bottom: 8%; z-index: 55; padding: 8px 18px; border: 3px solid var(--ink); border-radius: 14px 10px 16px 9px; background: #fffdf7; box-shadow: 3px 4px 0 rgba(36,37,37,.7); font-size: clamp(14px, 1.25vw, 20px); font-weight: 800; opacity: 0; transform: translate(-50%, 12px); transition: .18s ease; pointer-events: none; }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }
.confetti { position: absolute; inset: 0; z-index: 45; overflow: hidden; pointer-events: none; }
.confetti i { position: absolute; top: -12%; width: 10px; height: 20px; border: 2px solid var(--ink); animation: fall 1.6s ease-in forwards; }
@keyframes fall { to { transform: translate(var(--drift), 125vh) rotate(630deg); } }
#rotate-hint { display: none; position: fixed; inset: 0; z-index: 200; place-items: center; align-content: center; gap: 10px; padding: 28px; color: var(--ink); text-align: center; background: linear-gradient(rgba(247,245,238,.94), rgba(247,245,238,.94)), repeating-linear-gradient(0deg, transparent 0 23px, rgba(61,68,67,.12) 23px 24px), repeating-linear-gradient(90deg, transparent 0 23px, rgba(61,68,67,.12) 23px 24px); }
#rotate-hint strong { font-size: 30px; }
#rotate-hint span { font-size: 16px; }
@media (orientation: portrait) and (max-width: 760px) { #rotate-hint { display: grid; } }
@media (max-height: 470px) { .touch-controls { bottom: 3%; } .game-toolbar { top: 2.5%; } .goal-copy { top: 14.5%; max-width: 58%; padding: 2px 14px; font-size: clamp(17px, 2.2vw, 24px); } .home-actions { margin-top: 18px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }