/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */@layer theme{:host,:root{--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Noto Sans",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,::backdrop,:after,:before{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}:host,html{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Noto Sans",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{font-family:var(--default-mono-font-family,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}menu,ol,ul{list-style:none}audio,canvas,embed,iframe,img,object,svg,video{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,optgroup,select,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit,::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-millisecond-field,::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.static{position:static}.hidden{display:none}}:root{--col-mid:#4fc3f7;--col-high:#ef5350;--col-low:#81c784;--col-vowel:#ffb74d;--col-tone:#f06292;--col-mark:#b0bec5;--thai-font:Tahoma,"Leelawadee UI",sans-serif;--thai-size:64px;--bg:#12141c;--panel:#1c1f2b;--panel2:#252937;--text:#e8eaf1;--muted:#9aa0b4;--accent:#7c8cff}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:system-ui,sans-serif}header.app-header{background:var(--panel);border-bottom:1px solid #2c3040;flex-wrap:wrap;align-items:center;gap:24px;padding:12px 24px;display:flex}header.app-header h1{margin:0;font-size:1.2rem}header.app-header nav{flex-wrap:wrap;gap:8px;display:flex}.tab{color:var(--muted);cursor:pointer;background:0 0;border:1px solid #2c3040;border-radius:8px;padding:8px 16px;font-size:.95rem}.tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}main.app-main{max-width:1100px;margin:0 auto;padding:24px}@media (max-width:600px){main.app-main{padding:14px}header.app-header{padding:12px 14px}}.thai,.thai-big{font-family:var(--thai-font);line-height:1.9}.thai-big{font-size:var(--thai-size)}body.colors-on .c-mid{color:var(--col-mid)}body.colors-on .c-high{color:var(--col-high)}body.colors-on .c-low{color:var(--col-low)}body.colors-on .vowel{color:var(--col-vowel)}body.colors-on .tone{color:var(--col-tone)}body.colors-on .mark{color:var(--col-mark)}body.syllable-shading .syl:nth-child(odd){background:#ffffff12;border-radius:6px}.syl{padding:0 2px}.trainer-controls{flex-wrap:wrap;align-items:center;gap:20px;margin-bottom:20px;display:flex}input[type=range],select{accent-color:var(--accent)}select{background:var(--panel2);color:var(--text);border:1px solid #3a3f52;border-radius:6px;padding:6px 10px}.flashcard{background:var(--panel);cursor:pointer;border:1px solid #2c3040;border-radius:16px;justify-content:center;align-items:center;min-height:260px;padding:24px;display:flex}.card-face{text-align:center}.card-face .meta{color:var(--muted);margin-top:8px;font-family:system-ui;font-size:1.1rem}.hidden{display:none!important}.flashcard-buttons{justify-content:center;gap:12px;margin-top:16px;display:flex}button{cursor:pointer}.btn-bad,.btn-good{color:#fff;border:none;border-radius:8px;padding:12px 28px;font-size:1rem}.btn-bad{background:#c62828}.btn-good{background:#2e7d32}.quiz-prompt{text-align:center;margin:16px 0}.quiz-options{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;max-width:600px;margin:0 auto;display:grid}.quiz-options button{background:var(--panel2);color:var(--text);border:1px solid #3a3f52;border-radius:10px;padding:16px;font-size:1.2rem}.quiz-options button.correct{background:#1b3a1e;border-color:#2e7d32}.quiz-options button.wrong{background:#3a1b1b;border-color:#c62828}.quiz-feedback{text-align:center;min-height:1.5em;margin-top:12px}.progress-grid{grid-template-columns:repeat(auto-fill,minmax(56px,1fr));gap:6px;margin-top:8px;display:grid}.progress-grid .cell{font-family:var(--thai-font);text-align:center;background:var(--panel);border:1px solid #2c3040;border-radius:8px;padding:6px 0;font-size:1.6rem}.progress-grid .cell.known{border-color:#2e7d32;box-shadow:inset 0 -3px #2e7d32}.progress-grid .cell.learning{border-color:var(--accent);box-shadow:inset 0 -3px 0 var(--accent)}.progress-grid .cell.due{border-color:var(--col-vowel);background:#2a2f42}.session-indicator{color:var(--muted);background:var(--panel2);border:1px solid #3a3f52;border-radius:8px;margin-left:auto;padding:6px 12px;font-size:.9rem}.words-layout{grid-template-columns:1fr 2fr;gap:20px;display:grid}@media (max-width:800px){.words-layout{grid-template-columns:1fr}}.word-list{flex-direction:column;gap:6px;max-height:70vh;display:flex;overflow-y:auto}.word-list button{background:var(--panel);color:var(--text);text-align:left;border:1px solid #2c3040;border-radius:8px;justify-content:space-between;align-items:center;padding:10px 14px;display:flex}.word-list button.active{border-color:var(--accent)}.word-list .thai{font-size:1.5rem}.word-list .meaning{color:var(--muted);font-size:.9rem}.word-detail{background:var(--panel);border:1px solid #2c3040;border-radius:16px;padding:24px}.hint{color:var(--muted)}.syl-chip{background:var(--panel2);text-align:center;border-radius:10px;margin:6px 8px 6px 0;padding:10px 16px;display:inline-block}.syl-chip .thai{font-size:2rem;display:block}.syl-chip .roman{color:var(--muted)}.syl-chip .tone-label{color:var(--col-tone);font-size:.8rem}.font-wall{margin-top:20px}.font-wall .font-row{border-bottom:1px solid #2c3040;align-items:baseline;gap:16px;padding:6px 0;display:flex}.font-wall .font-row .font-name{color:var(--muted);flex-shrink:0;width:160px;font-size:.8rem}.font-wall .thai{font-size:2rem}.color-settings{flex-wrap:wrap;gap:16px;margin:12px 0;display:flex}.color-item{background:var(--panel);border:1px solid #2c3040;border-radius:8px;align-items:center;gap:8px;padding:8px 12px;display:flex}.color-item input[type=color]{background:0 0;border:none;width:36px;height:36px;padding:0}.toggle{margin:10px 0;display:block}h3{margin-top:28px}.settings-preview{background:var(--panel);text-align:center;border:1px solid #2c3040;border-radius:12px;padding:20px}.btn-reset{background:var(--panel2);color:var(--text);border:1px solid #3a3f52;border-radius:8px;margin-top:20px;padding:10px 18px}.write-layout{grid-template-columns:200px 1fr;gap:20px;display:grid}@media (max-width:800px){.write-layout{grid-template-columns:1fr}}.write-char-list{flex-direction:column;gap:6px;display:flex}.write-char-list button{background:var(--panel);color:var(--text);border:1px solid #2c3040;border-radius:8px;align-items:center;gap:10px;padding:10px;display:flex}.write-char-list button.active{border-color:var(--accent)}.write-char-list .thai{font-size:1.8rem}.write-char-list .meta{color:var(--muted);font-size:.8rem}.write-set-picker{gap:6px;margin-bottom:4px;display:flex}.write-set-picker button{flex:1;justify-content:center;font-weight:600}.write-canvas-wrap{aspect-ratio:1;background:var(--panel);touch-action:none;border:1px solid #2c3040;border-radius:16px;width:min(640px,90vw);position:relative;overflow:hidden}.write-canvas{width:100%;height:100%;display:block}.write-ghost-char{opacity:.07;pointer-events:none;font-size:420px;line-height:1;font-family:var(--thai-font);justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.write-status{min-height:1.6em;margin-top:10px;font-size:1.05rem}.write-status.ok{color:#81c784}.write-status.err{color:#ef5350}.write-info{color:var(--muted);margin-top:4px}.btn-secondary{background:var(--panel2);color:var(--text);border:1px solid #3a3f52;border-radius:8px;padding:8px 16px}.btn-speak{background:var(--accent);color:#fff;border:none;margin-top:12px;padding:8px 18px}.assemble-group{margin-bottom:8px}.assemble-group-label{text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-size:.8rem;display:block}.assemble-grid{flex-wrap:wrap;gap:6px;display:flex}.assemble-cell{background:var(--panel);min-width:44px;color:var(--text);font-size:1.3rem;font-family:var(--thai-font);border:1px solid #2c3040;border-radius:8px;padding:8px 10px}.assemble-cell.active,.assemble-cell:hover{border-color:var(--accent)}.assemble-cell.active{background:var(--panel2);box-shadow:inset 0 -3px 0 var(--accent)}body.colors-on .assemble-cell.c-mid{color:var(--col-mid)}body.colors-on .assemble-cell.c-high{color:var(--col-high)}body.colors-on .assemble-cell.c-low{color:var(--col-low)}body.colors-on .assemble-cell.vowel{color:var(--col-vowel)}body.colors-on .assemble-cell.tone{color:var(--col-tone)}.assemble-result{text-align:center;background:var(--panel);border:1px solid #2c3040;border-radius:16px;margin-top:24px;padding:24px}.assemble-stage{min-height:1.4em}.assemble-steps{font-size:1.6rem;font-family:var(--thai-font);justify-content:center;gap:14px;margin-top:12px;display:flex}.assemble-step{opacity:.25;transition:opacity .3s}.assemble-step.lit{opacity:1}.assemble-meta{margin-top:12px;line-height:1.6}.sb-controls{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;display:flex}.sb-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px;display:grid}.sb-card{background:var(--panel);border:1px solid #2c3040;border-radius:12px;padding:16px}.sb-card-head{justify-content:space-between;align-items:center;gap:8px;display:flex}.sb-thai{font-size:1.8rem}.sb-meaning{color:var(--text);margin-top:2px;font-size:1.05rem}.sb-meta{flex-wrap:wrap;gap:6px;margin:8px 0;display:flex}.chip{background:var(--panel2);color:var(--muted);border:1px solid #3a3f52;border-radius:999px;padding:2px 10px;font-size:.78rem}.chip-formal{color:#ce93d8;border-color:#6a3a72}.chip-coll{color:#80cbc4;border-color:#2c5d58}.chip-pos{font-style:italic}.sb-example{border-top:1px solid #2c3040;grid-template-columns:1fr auto;align-items:start;gap:2px 8px;margin-top:8px;padding-top:8px;display:grid}.sb-example .thai{font-size:1.2rem}.sb-example-en{color:var(--muted);grid-column:1/-1;font-size:.9rem}.sb-pitfall{color:#ffd54f;background:#2b2416;border:1px solid #5c4d1f;border-radius:8px;margin-top:10px;padding:8px 10px;font-size:.85rem}.btn-speak{background:var(--panel2);color:var(--text);border:1px solid #3a3f52;border-radius:8px;padding:6px 12px}.btn-speak-sm{padding:2px 8px;font-size:.85rem}.sb-drill{max-width:720px;margin:0 auto}.sb-gap-sentence{text-align:center;font-size:1.7rem}.sb-say-prompt{text-align:center;font-size:1.4rem}.sb-reveal{text-align:center;margin-top:20px}.sb-reveal .sb-gap-sentence{margin-bottom:12px}.sb-answer-strip{border:1px dashed #3a3f52;border-radius:10px;align-items:center;min-height:56px;margin:14px 0;padding:8px}.sb-answer-strip,.sb-tile-bank{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.sb-tile{background:var(--panel2);color:var(--text);border:1px solid #3a3f52;border-radius:8px;padding:8px 12px;font-size:1.3rem}.sb-tile:disabled{opacity:.3;cursor:default}.ss-cat-opinion{--tile:#d4b8ff;--tile-edge:#9a73d9}.ss-cat-linkers{--tile:#ffa9c4;--tile-edge:#d9668c}.ss-cat-time{--tile:#ffd36b;--tile-edge:#cf9a1c}.ss-cat-tense{--tile:#bcc6ff;--tile-edge:#7d8be0}.ss-cat-people{--tile:#9fdcff;--tile-edge:#4fa3d6}.ss-cat-doing{--tile:#92e6b5;--tile-edge:#43ad70}.ss-cat-things{--tile:#ffbf98;--tile-edge:#d97f49}.ss-cat-relations{--tile:#a7ebe4;--tile-edge:#4fb3a8}.ss-cat-describing{--tile:#f2ec9b;--tile-edge:#b8ad3a}.ss-cat-questions{--tile:#ff9e94;--tile-edge:#d65a4d}.ss-cat-endings{--tile:#dfe3ec;--tile-edge:#9aa2b5}.ss{--ink:#1c1a24}.ss-dragging,.ss-dragging *{cursor:grabbing}.ss-dragging,.ss-dragging *,.ss-tile{-webkit-user-select:none;user-select:none}.ss-tile{background:var(--tile);color:var(--ink);box-shadow:0 4px 0 var(--tile-edge);font:inherit;touch-action:manipulation;-webkit-touch-callout:none;border:none;border-radius:14px;flex-direction:column;align-items:center;gap:1px;padding:8px 14px 7px;line-height:1.15;transition:transform 80ms,box-shadow 80ms;display:inline-flex}.ss-tile:active{box-shadow:0 1px 0 var(--tile-edge);transform:translateY(3px)}.ss-tile:focus-visible{outline-offset:3px;outline:3px solid #fff}.ss-tile-thai{font-family:var(--thai-font);font-size:1.55rem;line-height:1.5}.ss-tile-sound{opacity:.75;font-size:.78rem;font-weight:600}.ss-tile-meaning{opacity:.85;text-align:center;max-width:16ch;font-size:.78rem}.ss-stage{z-index:5;background:#232736;border:1px solid #343a50;border-radius:22px;padding:18px 18px 14px;position:sticky;top:8px;box-shadow:0 18px 40px -20px #000c}.ss-rail{background:linear-gradient(#0000 calc(100% - 6px),#3d4560 calc(100% - 6px)) no-repeat,#1a1d29;border-radius:16px;flex-wrap:wrap;align-items:flex-end;gap:14px 10px;min-height:118px;padding:14px 14px 20px;transition:background-color .15s,box-shadow .15s;display:flex}.ss-rail-over{box-shadow:inset 0 0 0 2px var(--accent);background-color:#1e2236}.ss-rail-empty{justify-content:center;align-items:center}.ss-empty{color:var(--muted);text-align:center;margin:0;font-size:1.05rem}.ss-slot{align-items:flex-end;gap:10px;display:inline-flex}.ss-tile-board .ss-tile-thai{font-size:2.1rem}.ss-tile-board{animation:ss-pop .22s ease-out}.ss-tile-lifted{opacity:.25}.ss-caret{background:var(--accent);width:5px;min-height:60px;box-shadow:0 0 12px var(--accent);border-radius:3px;align-self:stretch}@keyframes ss-pop{0%{opacity:0;transform:scale(.6)translateY(10px)}to{opacity:1;transform:none}}.ss-ghost{z-index:50;pointer-events:none;box-shadow:0 4px 0 var(--tile-edge),0 16px 30px #00000080;position:fixed;transform:translate(-50%,-70%)rotate(-3deg)scale(1.08)}.ss-readout{flex-wrap:wrap;gap:12px;margin-top:12px}.ss-readout,.ss-written{align-items:center;display:flex}.ss-written{flex:260px;min-height:1.9em;font-size:1.6rem}.ss-written .hint{font-size:.95rem}.ss-actions{flex-wrap:wrap;gap:8px;display:flex}.ss-btn{background:var(--panel2);color:var(--text);border:1px solid #3a3f52;border-radius:12px;min-height:44px;padding:10px 16px;font-size:.95rem}.ss-btn:disabled{opacity:.4;cursor:default}.ss-box-head:focus-visible,.ss-btn:focus-visible,.ss-idea:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.ss-btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.ss-btn-quiet{background:0 0}.ss-focus{border-top:1px dashed #3a3f52;align-items:center;gap:12px;margin-top:12px;padding-top:12px;font-size:.92rem;line-height:1.5;display:flex}.ss-focus-word{font-family:var(--thai-font);background:var(--tile);color:var(--ink);border-radius:10px;flex-shrink:0;padding:0 10px;font-size:1.4rem}.ss-focus-note{color:var(--muted)}.ss-example{text-align:left;color:var(--text);font:inherit;background:0 0;border:none;margin-top:4px;padding:0;display:block}.ss-example .thai{font-size:1.1rem}.ss-ideas{gap:10px;margin:18px 0 8px;display:grid}.ss-ideas-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.ss-ideas-label{color:var(--muted);margin-right:4px;font-size:.9rem}.ss-idea{color:var(--text);background:0 0;border:1px solid #3a3f52;border-radius:999px;padding:7px 14px;font-size:.88rem}.ss-idea:hover{border-color:var(--accent)}.ss-idea.thai{padding:2px 14px;font-size:1.1rem}.ss-saved{align-items:center;display:inline-flex}.ss-saved-x{color:var(--muted);background:0 0;border:none;padding:8px;font-size:.85rem}.ss-toolbar{flex-wrap:wrap;align-items:center;gap:14px;margin:18px 0 14px;display:flex}.ss-search{background:var(--panel);min-height:44px;color:var(--text);border:1px solid #3a3f52;border-radius:12px;flex:240px;padding:8px 14px;font-size:1rem}.ss-search:focus{outline:2px solid var(--accent);outline-offset:1px}.ss-toggle{color:var(--muted);align-items:center;gap:6px;font-size:.92rem;display:inline-flex}.ss-toggle input{width:18px;height:18px;accent-color:var(--accent)}.ss-boxes{grid-template-columns:repeat(auto-fill,minmax(330px,1fr));align-items:start;gap:14px;display:grid}.ss-box{background:var(--panel);border:1px solid #2c3040;border-radius:18px;overflow:hidden}.ss-box-open{border-color:var(--tile-edge)}@supports (color:color-mix(in lab,red,red)){.ss-box-open{border-color:color-mix(in srgb,var(--tile-edge) 55%,#2c3040)}}.ss-box-head{width:100%;color:var(--text);text-align:left;min-height:60px;font:inherit;background:0 0;border:none;align-items:center;gap:12px;padding:12px 14px;display:flex}.ss-box-head:disabled{cursor:default}.ss-box-emoji{background:var(--tile);width:40px;height:40px;box-shadow:0 3px 0 var(--tile-edge);border-radius:12px;flex-shrink:0;place-items:center;font-size:1.3rem;display:grid}.ss-box-titles{flex-direction:column;flex:1;display:flex}.ss-box-title{font-size:1.02rem;font-weight:650}.ss-box-thai{color:var(--muted);font-size:.9rem;line-height:1.4}.ss-box-count{color:var(--muted);font-size:.85rem}.ss-box-chevron{border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);width:10px;height:10px;margin-right:4px;transition:transform .2s;transform:rotate(45deg)}.ss-box-open .ss-box-chevron{transform:rotate(-135deg)}.ss-box-head:disabled .ss-box-chevron{visibility:hidden}.ss-box-body{grid-template-rows:0fr;transition:grid-template-rows .25s;display:grid}.ss-box-open .ss-box-body{grid-template-rows:1fr}.ss-box-inner{overflow:hidden}.ss-box-tip{color:var(--muted);margin:0 16px 10px;font-size:.86rem;line-height:1.45}.ss-box-tip,.ss-focus{font-family:system-ui,var(--thai-font),sans-serif}.ss-bank{flex-wrap:wrap;gap:12px 8px;padding:0 14px 18px;display:flex}@media (max-width:600px){.ss-stage{border-radius:18px;padding:12px}.ss-tile-board .ss-tile-thai{font-size:1.7rem}.ss-boxes{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){.ss-box-body,.ss-box-chevron,.ss-rail,.ss-tile{transition:none}.ss-tile-board{animation:none}}@media (max-height:560px),(max-width:600px){.ss-stage{position:static}}