:root{--color-bg:#f7f4ed;--color-surface:#fffdf8;--color-ink:#171717;--color-muted:#68665f;--color-line:#d9d5ca;--color-tile:#e9e6de;--color-coral:#ff7a70;--color-lime:#b9df62;--color-cyan:#62c7e3;--color-purple:#aa8af3;--shadow-soft:0 18px 44px #17171717;--font-thai:"Noto Sans Thai", "Leelawadee UI", "Thonburi", Tahoma, Arial, sans-serif}*{box-sizing:border-box}html{background:var(--color-bg);min-width:320px;color:var(--color-ink);text-rendering:optimizelegibility}body{background:radial-gradient(circle at 18% 18%, #ff7a7014, transparent 25rem), radial-gradient(circle at 86% 80%, #62c7e317, transparent 28rem), var(--color-bg);min-height:100vh;color:var(--color-ink);font-family:var(--font-thai);margin:0}button,textarea{font:inherit}button{-webkit-tap-highlight-color:transparent}button:focus-visible,textarea:focus-visible{outline:3px solid var(--color-cyan);outline-offset:3px}.app-shell{flex-direction:column;min-height:100vh;display:flex}.site-header{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#fffdf8e0;border-bottom:1px solid #1717171a}.site-header__inner{justify-content:space-between;align-items:center;width:min(100%,1080px);min-height:78px;margin:0 auto;padding:12px clamp(16px,4vw,32px);display:flex}.brand-lockup{align-items:center;gap:12px;display:flex}.brand-mark{background:var(--color-ink);border-radius:13px;grid-template-columns:1fr 1fr;gap:3px;width:42px;height:42px;padding:4px;display:grid;transform:rotate(-2deg);box-shadow:0 5px #1717171f}.brand-mark span{border-radius:4px}.brand-mark span:first-child{background:var(--color-lime)}.brand-mark span:nth-child(2){background:var(--color-cyan)}.brand-mark span:nth-child(3){background:var(--color-coral)}.brand-mark span:nth-child(4){background:var(--color-purple)}.brand-name{letter-spacing:-.04em;font-size:clamp(1.35rem,4vw,1.75rem);font-weight:950;line-height:1}.brand-date{color:var(--color-muted);margin-top:5px;font-size:.74rem;font-weight:650}.header-actions{align-items:center;gap:8px;display:flex}.header-button,.help-button,.icon-button{border:2px solid var(--color-ink);width:44px;height:44px;color:var(--color-ink);cursor:pointer;background:0 0;border-radius:50%;place-items:center;font-weight:900;transition:transform .16s,background .16s,color .16s;display:inline-grid}.header-button:hover,.help-button:hover,.icon-button:hover{background:var(--color-ink);color:#fff;transform:rotate(5deg)}.sound-button{font-size:1.05rem;position:relative}.sound-button--muted:after{content:"";background:currentColor;border-radius:999px;width:24px;height:2px;position:absolute;transform:rotate(-45deg)}.stats-button>span{align-items:flex-end;gap:2px;height:18px;display:flex}.stats-button i{background:currentColor;border-radius:2px 2px 0 0;width:4px;display:block}.stats-button i:first-child{height:8px}.stats-button i:nth-child(2){height:15px}.stats-button i:nth-child(3){height:11px}.game-main{flex-direction:column;flex:1;align-items:center;width:100%;padding:clamp(24px,5vw,48px) 14px 40px;display:flex}.game-intro{text-align:center;width:min(100%,680px);margin-bottom:clamp(22px,4vw,34px)}.eyebrow{min-height:28px;color:var(--color-muted);letter-spacing:.13em;background:#fffdf8c7;border:1px solid #17171724;border-radius:999px;align-items:center;padding:5px 10px;font-size:.67rem;font-weight:850;display:inline-flex}.game-intro h1{letter-spacing:-.055em;margin:14px 0 4px;font-size:clamp(1.9rem,8vw,3.25rem);font-weight:950;line-height:1.1}.game-intro p{color:var(--color-muted);margin:8px 0 0;font-size:clamp(.9rem,3vw,1.05rem);font-weight:600}.game-area{width:min(100%,680px)}.game-loading{min-height:390px;color:var(--color-muted);justify-content:center;align-items:center;gap:10px;font-size:.9rem;display:flex}.game-loading__pulse{background:var(--color-ink);border-radius:999px;width:9px;height:9px;animation:.85s ease-in-out infinite alternate loading-pulse}.solved-groups{gap:8px;margin-bottom:8px;display:grid}.solved-group{min-height:78px;color:var(--color-ink);text-align:center;border:2px solid #1717171a;border-radius:16px;place-content:center;padding:12px;animation:.42s cubic-bezier(.2,.9,.2,1) both group-in;display:grid}.solved-group h3{margin:0;font-size:clamp(.92rem,3vw,1.08rem);font-weight:950;line-height:1.2}.solved-group p{margin:3px 0 0;font-size:clamp(.72rem,2.5vw,.88rem);font-weight:650}.solved-group--lime,.result-group--lime{background:var(--color-lime)}.solved-group--cyan,.result-group--cyan{background:var(--color-cyan)}.solved-group--coral,.result-group--coral{background:var(--color-coral)}.solved-group--purple,.result-group--purple{background:var(--color-purple)}.game-board{grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(5px,1.5vw,9px);display:grid}.game-board--shake{animation:.33s both shake}.word-tile{background:var(--color-tile);min-width:0;min-height:clamp(62px,16vw,94px);color:var(--color-ink);cursor:pointer;letter-spacing:-.02em;overflow-wrap:anywhere;border:0;border-radius:clamp(10px,2.5vw,16px);padding:7px 5px;font-size:clamp(.72rem,3vw,1rem);font-weight:850;line-height:1.12;transition:transform .14s,background .14s,color .14s,box-shadow .14s;overflow:hidden;box-shadow:inset 0 -2px #1717170f,0 2px #17171712}.word-tile:hover:not(:disabled){transform:translateY(-2px)}.word-tile[aria-pressed=true]{background:var(--color-ink);color:#fff;animation:.18s both tile-pop;transform:translateY(-5px);box-shadow:0 7px #1717172e}.word-tile:disabled{cursor:default;opacity:.62}.word-tile--small{font-size:clamp(.62rem,2.4vw,.86rem)}.word-tile--tiny{font-size:clamp(.54rem,2vw,.76rem)}.mistakes{min-height:54px;color:var(--color-muted);justify-content:center;align-items:center;gap:10px;font-size:.82rem;font-weight:700;display:flex}.mistakes__marks{gap:5px;display:flex}.mistake-mark{border:2px solid var(--color-ink);background:var(--color-coral);border-radius:50%;width:12px;height:12px;transition:transform .18s,background .18s}.mistake-mark.used{opacity:.25;background:0 0;transform:scale(.75)}.game-controls{justify-content:center;gap:clamp(5px,2vw,10px);display:flex}.button{border:2px solid var(--color-ink);cursor:pointer;border-radius:999px;min-height:46px;padding:10px clamp(12px,3vw,20px);font-size:clamp(.74rem,2.7vw,.9rem);font-weight:850;transition:transform .14s,box-shadow .14s,background .14s,color .14s}.button:hover:not(:disabled){transform:translateY(-2px)}.button:active:not(:disabled){transform:translateY(1px)}.button:disabled{cursor:not-allowed;opacity:.28}.button--primary{background:var(--color-ink);color:#fff;box-shadow:0 5px #1717172e}.button--secondary{color:var(--color-ink);background:0 0}.button--secondary:hover:not(:disabled){background:var(--color-surface)}.button--wide{width:100%;margin-top:12px}.result-reopen{margin:18px auto 0;display:block}.storage-note{color:#7d331f;text-align:center;margin:14px 0 0;font-size:.78rem}.demo-banner,.new-puzzle-banner{background:var(--color-lime);border:1px solid #1717171f;border-radius:14px;justify-content:space-between;align-items:center;gap:12px;width:min(100%,680px);margin:-8px auto 22px;padding:11px 14px;font-size:.82rem;font-weight:650;display:flex}.demo-banner{justify-content:center}.demo-banner span,.new-puzzle-banner span{font-weight:950}.new-puzzle-banner button{cursor:pointer;background:0 0;border:0;border-bottom:2px solid;font-weight:900}.site-footer{width:min(100%,1080px);color:var(--color-muted);border-top:1px solid #1717171a;flex-wrap:wrap;justify-content:space-between;gap:6px 18px;margin:0 auto;padding:18px clamp(16px,4vw,32px) 24px;font-size:.72rem;font-weight:650;display:flex}.toast-region{z-index:80;pointer-events:none;min-width:min(90vw,320px);position:fixed;top:88px;left:50%;transform:translate(-50%)}.toast{border:2px solid var(--color-ink);background:var(--color-surface);box-shadow:var(--shadow-soft);text-align:center;border-radius:999px;padding:12px 16px;font-size:.9rem;font-weight:900;animation:.2s both toast-in}.modal{width:min(100% - 24px,560px);max-height:calc(100dvh - 24px);color:var(--color-ink);background:0 0;border:0;border-radius:24px;padding:0;overflow:visible}.modal::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#1717179e}.modal__panel{border:2px solid var(--color-ink);background:var(--color-surface);border-radius:24px;max-height:calc(100dvh - 24px);padding:clamp(20px,5vw,30px);animation:.24s cubic-bezier(.2,.9,.2,1) both modal-in;overflow:hidden auto;box-shadow:0 24px 80px #00000047}.modal__header{z-index:3;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px;display:flex;position:relative}.modal__header h2{letter-spacing:-.045em;max-width:430px;margin:0;font-size:clamp(1.45rem,6vw,2rem);font-weight:950;line-height:1.18}.modal__header .icon-button{background:var(--color-tile);border-width:0;flex:none;font-size:1.5rem}.how-to__lead{color:var(--color-muted);margin:0;font-weight:650;line-height:1.65}.how-to ol{margin:18px 0;padding-left:24px}.how-to li{margin:8px 0;padding-left:4px;line-height:1.5}.how-to__example{grid-template-columns:repeat(4,1fr);gap:5px;margin:20px 0;display:grid}.example-tile{text-align:center;border-radius:10px;place-items:center;min-height:52px;padding:5px 3px;font-size:clamp(.58rem,2.5vw,.74rem);font-weight:850;display:grid}.example-tile--lime{background:var(--color-lime)}.how-to__tip{background:var(--color-tile);border-radius:14px;padding:12px 14px;font-size:.86rem;line-height:1.5}.result-stats{grid-template-columns:repeat(3,1fr);gap:7px;margin-bottom:18px;display:grid}.result-lead{color:var(--color-muted);text-align:center;margin:-8px 0 16px;font-size:.88rem;font-weight:750}.result-stats>div{background:var(--color-tile);text-align:center;border-radius:14px;place-content:center;min-width:0;min-height:82px;padding:10px 4px;display:grid}.result-stats strong{font-size:clamp(1.15rem,5vw,1.5rem);font-weight:950}.result-stats span{color:var(--color-muted);font-size:clamp(.62rem,2vw,.74rem);font-weight:650}.result-groups{gap:7px;display:grid}.result-group{color:var(--color-ink);animation:.36s both result-reveal;animation-delay:calc(var(--reveal-index) * 90ms);border-radius:14px;gap:3px;padding:12px 14px;display:grid}.result-group strong{font-size:.92rem;font-weight:950}.result-group span{font-size:.76rem;font-weight:700}.result-group small{color:#171717b8;font-size:.7rem;line-height:1.4}.share-message{color:var(--color-muted);text-align:center;margin:10px 0 0;font-size:.82rem;font-weight:800}.share-text{resize:vertical;border:1px solid var(--color-line);background:var(--color-bg);width:100%;min-height:150px;color:var(--color-ink);border-radius:12px;margin-top:10px;padding:12px;line-height:1.5}.next-puzzle{background:var(--color-tile);text-align:center;border:1px solid #1717171a;border-radius:14px;gap:2px;margin-top:16px;padding:13px 16px;display:grid}.next-puzzle span{color:var(--color-muted);font-size:.72rem;font-weight:700}.next-puzzle strong{font-variant-numeric:tabular-nums;font-size:1.15rem;font-weight:950}.stats-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.stats-grid>div{background:var(--color-tile);text-align:center;border-radius:14px;place-content:center;min-height:92px;padding:10px 4px;display:grid}.stats-grid strong{font-size:clamp(1.25rem,5vw,1.7rem);font-weight:950}.stats-grid span{color:var(--color-muted);font-size:.7rem;font-weight:700}.stats-best{background:var(--color-lime);border-radius:14px;justify-content:space-between;align-items:center;margin-top:10px;padding:13px 15px;font-size:.82rem;font-weight:750;display:flex}.stats-best strong{font-variant-numeric:tabular-nums;font-size:1.05rem;font-weight:950}.stats-note{color:var(--color-muted);text-align:center;margin:12px 0 0;font-size:.72rem;font-weight:650}.result-summary{position:relative;container-type:inline-size}.result-summary>:not(.confetti){z-index:1;position:relative}.confetti{z-index:0;pointer-events:none;width:100%;height:132px;position:absolute;top:-54px;left:50%}.confetti__piece{width:8px;height:14px;animation:.98s cubic-bezier(.2,.75,.3,1) both confetti-fall;animation-delay:var(--confetti-delay);transform:translateX(var(--confetti-x)) rotate(var(--confetti-rotation));border-radius:3px;position:absolute;top:0;left:50%}.confetti__piece--0{background:var(--color-lime)}.confetti__piece--1{background:var(--color-cyan)}.confetti__piece--2{background:var(--color-coral)}.confetti__piece--3{background:var(--color-purple)}@keyframes tile-pop{45%{transform:translateY(-7px)scale(1.035)}}@keyframes loading-pulse{0%{opacity:.28;transform:scale(.8)}to{opacity:1;transform:scale(1)}}@keyframes group-in{0%{opacity:0;transform:scale(.96)translateY(8px)}}@keyframes confetti-fall{0%{opacity:0;transform:translateX(var(--confetti-x)) translateY(-12px) rotate(var(--confetti-rotation))}15%{opacity:1}to{opacity:0;transform:translateX(calc(var(--confetti-x) + var(--confetti-drift))) translateY(126px) rotate(calc(var(--confetti-rotation) + 380deg))}}@keyframes shake{20%{transform:translate(-7px)}40%{transform:translate(7px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}@keyframes toast-in{0%{opacity:0;transform:translateY(-8px)scale(.97)}}@keyframes modal-in{0%{opacity:0;transform:translateY(16px)scale(.97)}}@keyframes result-reveal{0%{opacity:0;transform:translateY(8px)}}@media (width<=420px){.site-header__inner{min-height:72px}.brand-mark{width:38px;height:38px}.header-actions{gap:5px}.header-button,.help-button{width:38px;height:38px}.game-main{padding-left:10px;padding-right:10px}.game-controls{gap:5px}.button{min-height:44px;padding-left:10px;padding-right:10px}.site-footer{text-align:center;justify-content:center}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=760px){.game-main{padding-top:42px}.game-intro{margin-bottom:28px}.word-tile{min-height:96px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.confetti{display:none}}