:root{--ink:#1a1714;--paper:#f5f0e8;--cream:#ede7d5;--rust:#c0533a;--rust-light:#e8765e;--sage:#5a7a5c;--sage-light:#7da87f;--muted:#8a8070;--border:#d4cbb8;--card-bg:#faf7f1;--shadow:rgba(26,23,20,.12);--input-bg:#fff;--safe-top:0px;--safe-bottom:0px}
[data-dark=true]{--ink:#e8e0d0;--paper:#1a1814;--cream:#252118;--rust:#e8765e;--rust-light:#f09070;--sage:#7da87f;--muted:#7a7060;--border:#3a3530;--card-bg:#211f1a;--shadow:rgba(0,0,0,.4);--input-bg:#2a2722}
[data-theme=neon]{--ink:#1a003a;--paper:#f0e6ff;--cream:#e0ccff;--rust:#cc00aa;--rust-light:#ff22cc;--sage:#00b894;--muted:#8844bb;--border:#c880ff;--card-bg:#f8f0ff;--input-bg:#fff}
[data-theme=neon][data-dark=true]{--ink:#f0e6ff;--paper:#0d0020;--cream:#140030;--rust:#ff22dd;--sage:#00ffcc;--muted:#9966cc;--border:#3a0066;--card-bg:#110028;--input-bg:#1a0038}
[data-theme=retro]{--ink:#2d1b00;--paper:#f0c060;--cream:#e8b040;--rust:#c03000;--sage:#205020;--muted:#806020;--border:#c09030;--card-bg:#f5c855;--input-bg:#f8d870}
[data-theme=retro][data-dark=true]{--ink:#f0c060;--paper:#1a0e00;--cream:#251500;--card-bg:#201200;--border:#4a3000;--input-bg:#2a1800;--muted:#907040}
*{margin:0;padding:0;box-sizing:border-box;font-synthesis:none;-webkit-font-synthesis:none}
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=Fraunces:opsz,wght@9..144,400;9..144,600;9..144,700&family=Noto+Sans+Thai:wght@300;400;500;600;700&display=swap');
@font-face{
  font-family:'TH Mali Grade 6';
  src:url('../fonts/TH-Mali-Grade6-Regular.ttf') format('truetype');
  font-weight:normal;
  font-style:normal;
  font-display:swap;
}
body{font-family:'DM Mono',monospace;background:var(--paper);min-height:100vh;color:var(--ink);line-height:1.15;padding-top:var(--safe-top);padding-bottom:var(--safe-bottom)}

/* ===== START PAGE ===== */
#start-page{max-width:480px;margin:0 auto;padding:20px 16px calc(80px + var(--safe-bottom));display:flex;flex-direction:column}
.start-header{text-align:center;margin-bottom:16px}
.start-header-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;padding:0 4px}
.app-logo-svg{width:42px;height:42px}
h1{font-family:'Fraunces',serif;font-size:22px;font-weight:700;margin:4px 0 2px}
.start-desc{font-size:10px;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);margin-top:2px}
.start-free-line{font-size:10.5px;color:var(--muted);margin-top:8px;line-height:1.4}
.sfl-pro{color:var(--rust);font-weight:500}
#settings-btn{background:none;border:1px solid var(--border);border-radius:8px;padding:6px;cursor:pointer;color:var(--ink);display:flex;align-items:center}
.streak-badge{background:none;border:1px solid var(--border);border-radius:12px;padding:3px 8px;cursor:pointer;display:flex;align-items:center;gap:3px;font-size:12px;color:var(--ink);display:none}
.char-search-bar{margin:0 0 16px}
.char-search-wrap{display:flex;align-items:center;background:var(--input-bg);border:1px solid var(--border);border-radius:10px;padding:0 10px;height:38px;gap:6px}
.char-search-icon{color:var(--muted);flex-shrink:0}
#char-search-input{flex:1;border:none;background:none;outline:none;font-family:'DM Mono',monospace;font-size:13px;color:var(--ink)}
#char-search-input::placeholder{color:var(--muted)}
#char-search-clear{background:none;border:none;font-size:18px;color:var(--muted);cursor:pointer;padding:0 4px}
.char-search-results{background:var(--card-bg);border:1px solid var(--border);border-radius:10px;margin-top:6px;max-height:220px;overflow-y:auto;padding:4px;position:relative;z-index:150;box-shadow:0 4px 16px var(--shadow)}
.sr-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;cursor:pointer;border:none;background:none;width:100%;text-align:left;color:var(--ink);font-family:'DM Mono',monospace;font-size:13px;-webkit-tap-highlight-color:rgba(0,0,0,.05)}
.sr-item:hover,.sr-item:active{background:var(--cream)}

/* Draw search */
.draw-search-toggle{width:28px;height:28px;border-radius:7px;border:1px solid var(--border);background:transparent;color:var(--muted);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:border-color .15s,color .15s,background .15s}
.draw-search-toggle:hover,.draw-search-toggle.active{border-color:var(--rust);color:var(--rust);background:rgba(192,83,58,.08)}
.draw-search-panel{margin-top:6px;background:var(--card-bg);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.draw-search-canvas{display:block;width:100%;height:200px;cursor:crosshair;touch-action:none;background:rgba(0,0,0,.02)}
[data-dark=true] .draw-search-canvas{background:rgba(255,255,255,.03)}
.draw-search-footer{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;border-top:1px solid var(--border)}
.draw-search-hint{font-family:'DM Mono',monospace;font-size:10px;color:var(--muted);letter-spacing:.03em}
.draw-search-clear-btn{font-family:'DM Mono',monospace;font-size:10px;color:var(--muted);background:transparent;border:1px solid var(--border);border-radius:6px;padding:3px 9px;cursor:pointer;transition:all .15s}
.draw-search-clear-btn:hover{border-color:var(--ink);color:var(--ink)}
.sr-thai{font-size:28px;width:40px;text-align:center;font-family:'Noto Sans Thai',sans-serif}
.sr-info{flex:1}
.sr-en{font-size:12px;color:var(--muted)}
.sr-rtgs{font-size:11px;color:var(--sage)}
.home-section{margin-bottom:20px}
.home-section-label{font-size:10px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin-bottom:8px;padding-left:2px}
.home-section-label-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.quick-access-row{display:flex;gap:8px}
.quick-card{flex:1;display:flex;align-items:center;gap:10px;background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:10px 12px;cursor:pointer;text-align:left;font-family:'DM Mono',monospace;color:var(--ink)}
.quick-card:hover{border-color:var(--rust)}
.quick-card-glyph{font-size:26px;line-height:1;font-family:'Noto Sans Thai',sans-serif}
.quick-card-glyph-muted{color:var(--muted);font-family:'DM Mono',monospace}
.quick-card-body{display:flex;flex-direction:column}
.quick-card-title{font-size:12px;font-weight:500}
.quick-card-meta{font-size:10px;color:var(--muted);margin-top:1px}
.curr-chip-wrap{overflow-x:auto;margin:0 -16px;padding:0 16px}
.curr-chip-strip{display:flex;gap:6px;padding-bottom:4px}
.curr-chip{flex-shrink:0;padding:8px 16px;background:var(--card-bg);border:1.5px solid var(--border);border-radius:20px;font-family:'DM Mono',monospace;font-size:12px;cursor:pointer;color:var(--ink);white-space:nowrap}
.curr-chip.active{border-color:var(--rust);background:var(--rust);color:#fff}
.drum-readout{text-align:center;margin-top:10px;font-size:11px;color:var(--muted)}
.selection-panel{margin-bottom:16px}
.book-section{margin-bottom:10px;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--card-bg)}
.book-header{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;cursor:pointer;font-family:'Fraunces',serif;font-size:14px;font-weight:600;color:var(--ink);background:none;border:none;width:100%;text-align:left}
.book-header:hover{background:var(--cream)}
.book-arrow{font-size:12px;color:var(--muted);transition:transform .2s}
.book-section.open .book-arrow{transform:rotate(90deg)}
.book-progress{height:3px;background:var(--cream);margin:0 14px}
.book-progress-fill{height:100%;background:var(--sage);border-radius:2px;transition:width .3s}
.chapter-list{display:none;padding:4px 8px 8px}
.book-section.open .chapter-list{display:block}
.chapter-btn{display:flex;align-items:center;justify-content:space-between;width:100%;padding:8px 10px;background:none;border:none;border-radius:8px;cursor:pointer;font-family:'DM Mono',monospace;font-size:12px;color:var(--ink);text-align:left}
.chapter-btn:hover{background:var(--cream)}
.chapter-btn.selected{background:var(--rust);color:#fff}
.chapter-meta{font-size:10px;color:var(--muted)}
.chapter-btn.selected .chapter-meta{color:rgba(255,255,255,.7)}
.start-footer-wrap{position:fixed;bottom:0;left:0;right:0;padding:12px 20px calc(20px + var(--safe-bottom));background:linear-gradient(to bottom,transparent,var(--paper) 40%);z-index:100;pointer-events:none}
.start-footer{max-width:420px;margin:0 auto;pointer-events:all}
#start-btn{width:100%;padding:14px;background:var(--rust);color:#fff;border:none;border-radius:12px;font-family:'Fraunces',serif;font-size:16px;font-weight:600;cursor:pointer;box-shadow:0 2px 8px var(--shadow)}
#start-btn:hover{background:var(--rust-light)}
#start-btn:disabled{opacity:.4;cursor:not-allowed}

/* ===== POPUPS ===== */
.curr-popup{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.4);padding:16px}
.curr-popup-inner{background:var(--card-bg);border-radius:16px;padding:24px 20px;max-width:420px;width:100%;max-height:80vh;overflow-y:auto;position:relative;box-shadow:0 8px 32px var(--shadow)}
.curr-popup-close{position:absolute;top:12px;right:14px;background:none;border:none;font-size:22px;color:var(--muted);cursor:pointer}
.curr-popup-title{font-family:'Fraunces',serif;font-size:18px;font-weight:700;margin-bottom:4px}
.curr-popup-subtitle{font-size:11px;color:var(--muted);margin-bottom:12px}
.curr-popup-body{font-size:13px;line-height:1.55}
.settings-popup-body{display:flex;flex-direction:column;gap:0;overflow-y:auto;flex:1;min-height:0}
.settings-popup-section{padding:12px 0;border-bottom:1px solid var(--border)}
.settings-popup-section:last-child{border-bottom:none;padding-bottom:4px}
.settings-popup-label{font-family:'DM Mono',monospace;font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.settings-row{display:flex;align-items:center;justify-content:space-between;padding:4px 0}
.settings-label{font-size:13px}
.theme-pills{display:flex;gap:6px;flex-wrap:wrap}
.theme-pill{padding:5px 12px;border:1px solid var(--border);border-radius:16px;background:none;font-family:'DM Mono',monospace;font-size:11px;cursor:pointer;color:var(--ink)}
.theme-pill.active{background:var(--rust);color:#fff;border-color:var(--rust)}
.toggle-wrap{position:relative;display:inline-block;width:40px;height:22px;cursor:pointer}
.toggle-wrap input{opacity:0;width:0;height:0}
.toggle-track{position:absolute;inset:0;background:var(--border);border-radius:11px;transition:background .2s}
.toggle-wrap input:checked~.toggle-track{background:var(--sage)}
.toggle-thumb{position:absolute;top:2px;left:2px;width:18px;height:18px;background:#fff;border-radius:50%;transition:transform .2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.toggle-wrap input:checked~.toggle-thumb{transform:translateX(18px)}
.settings-tutorial-btn,.settings-reset-btn{width:100%;padding:9px 14px;background:transparent;border:1px solid var(--border);border-radius:8px;font-family:'DM Mono',monospace;font-size:11px;letter-spacing:.04em;cursor:pointer;text-align:center;color:var(--muted);transition:all .15s}
.settings-tutorial-btn:hover{border-color:var(--ink);color:var(--ink)}
.settings-reset-btn{border-color:#ef4444;color:#ef4444}
.settings-reset-btn:hover{background:#ef4444;color:#fff}

/* ===== APP CONTAINER ===== */
#app-container{display:none;max-width:480px;margin:0 auto;min-height:calc(100vh - var(--safe-bottom));flex-direction:column;padding:14px 16px 20px}
.app-top{display:flex;align-items:center;justify-content:space-between;padding:0 0 8px;flex-shrink:0}
.app-logo{font-family:'Fraunces',serif;font-size:14px;font-weight:600;display:flex;align-items:center;gap:6px}
.app-logo-inline{width:24px;height:24px}
#home-btn{background:none;border:1px solid var(--border);border-radius:8px;padding:5px 12px;font-family:'DM Mono',monospace;font-size:12px;cursor:pointer;color:var(--ink)}

/* ===== CARD (exact HanziBen layout) ===== */
.card-scene{width:100%;max-width:400px;perspective:1200px;margin:0 auto}
.card{width:100%;height:530px;position:relative;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.4,0,.2,1)}
.card.flipped{transform:rotateY(180deg)}
.card-face{position:absolute;width:100%;height:100%;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:var(--card-bg);border:1px solid var(--border);border-radius:20px;box-shadow:0 4px 24px var(--shadow),0 1px 3px var(--shadow);overflow:hidden}
.card-face.back{transform:rotateY(180deg);padding:0;justify-content:flex-start;display:flex;flex-direction:column}
.card-front-inner{display:flex;flex-direction:column;height:100%}

/* Front: word section */
.card-word-section{padding:14px 24px 12px;border-bottom:1px solid var(--border);background:var(--input-bg);height:100px;flex-shrink:0;overflow:hidden}
.card-word-row{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}
.card-word-main{min-width:0;flex:1}
.card-label{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:5px}
.card-english-row{display:flex;align-items:center;gap:10px;min-width:0}
#english-word{font-family:'Fraunces',serif;font-weight:600;font-size:22px;color:var(--ink);line-height:1.15;min-width:0}
/* TEMP debug: Mali Grade 6 glyph beside English */
.mali-ref{font-family:'TH Mali Grade 6','Noto Sans Thai',sans-serif;font-size:36px;line-height:1;color:var(--ink);flex-shrink:0;padding:0 2px;opacity:.92}
#phonetic-front{font-size:14px;color:var(--muted);margin-top:3px}
.speak-btn-top{background:var(--input-bg);border:1px solid var(--border);border-radius:50%;width:30px;height:30px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--muted);flex-shrink:0;transition:all .15s}
.speak-btn-top:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* Class badge */
.class-badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:9px;text-transform:uppercase;letter-spacing:.8px;margin-top:4px}
.class-badge.mid{background:#e8dcc8;color:#6b5b3f}
.class-badge.high{background:#d4e8d4;color:#3a6b3a}
.class-badge.low{background:#e0d0e8;color:#6b3a6b}
[data-dark=true] .class-badge.mid{background:#3a3020;color:#c8b888}
[data-dark=true] .class-badge.high{background:#203020;color:#88c888}
[data-dark=true] .class-badge.low{background:#302030;color:#c888c8}

/* Front: canvas area */
.canvas-area{flex:1;position:relative;padding:10px 46px 8px 12px;display:flex;align-items:center;justify-content:center;min-height:0;overflow:hidden}
.canvas-wrap{position:relative;width:100%;max-width:300px;aspect-ratio:1;border-radius:12px;overflow:hidden;background:var(--input-bg);border:1px solid var(--border)}
#draw-canvas{width:100%;height:100%;cursor:crosshair;display:block;touch-action:none}
#guide-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none}
#guide-char{font-family:'Noto Sans Thai',sans-serif;font-size:140px;line-height:1;color:var(--sage);opacity:.25;display:none}
.result-overlay{position:absolute;inset:0;display:none;align-items:center;justify-content:center;pointer-events:none}
.result-overlay.show{display:flex}
.result-icon{font-size:64px}

/* Side buttons (undo/clear) */
.side-btn{position:absolute;width:34px;height:34px;border-radius:8px;border:1px solid var(--border);background:var(--card-bg);color:var(--muted);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:16px;transition:background .15s,color .15s,border-color .15s;-webkit-tap-highlight-color:transparent;touch-action:manipulation;padding:0;z-index:10;outline:none}
.side-btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.side-btn:active{transform:scale(.94)}

/* Progress label + checkbox */
.progress-label-wrap{position:absolute;bottom:8px;right:8px;display:flex;flex-direction:row;align-items:center;gap:5px;z-index:10}
#progress-label-text{font-family:'DM Mono',monospace;font-size:9px;letter-spacing:.01em;text-align:right;white-space:nowrap;pointer-events:none}
.progress-label-not{color:#ef4444}
.progress-label-learned{color:#16a34a}
.progress-check-btn{position:static;width:34px;height:34px;border-radius:8px;border:1px solid var(--border);background:var(--card-bg);color:var(--muted);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:10;padding:0;-webkit-tap-highlight-color:transparent;touch-action:manipulation;outline:none}
#progress-tick{opacity:0}
.progress-check-btn.learned{background:#f0fdf4;border-color:#86efac;color:#16a34a}
.progress-check-btn.learned #progress-tick{opacity:1}

/* Front: nav strip */
.card-nav-strip{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-top:1px solid var(--border);background:var(--input-bg);flex-shrink:0;height:56px}
.nav-arrow{width:36px;height:36px;border:1px solid var(--border);border-radius:8px;background:var(--card-bg);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s;color:var(--ink)}
.nav-arrow:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
#number-text{font-size:12px;color:var(--muted);letter-spacing:.05em}

/* ===== BACK FACE (exact HanziBen) ===== */
.back-inner{display:flex;flex-direction:column;width:100%;flex:1;min-height:0;overflow-y:auto;padding:14px 18px 16px;box-sizing:border-box;gap:0}
.back-top{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;padding-bottom:12px;border-bottom:1px solid var(--border);flex-shrink:0}
.back-char-block{display:flex;flex-direction:column;align-items:flex-start}
#back-thai-char{font-family:'Noto Sans Thai',sans-serif;font-size:72px;color:var(--ink);line-height:1.25;padding-top:6px;min-height:1.25em}
#back-romanization{font-size:18px;color:var(--muted);margin-top:2px}
.speak-btn-back{background:var(--input-bg);border:1px solid var(--border);border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);flex-shrink:0;margin-top:4px;transition:all .15s}
.speak-btn-back:hover{background:var(--ink);color:#fff}
.back-top-right{display:flex;flex-direction:column;align-items:flex-end;gap:8px;flex-shrink:0}
.back-english{font-family:'Fraunces',serif;font-size:13px;font-style:italic;color:var(--muted);text-align:right;max-width:140px;line-height:1.3}

/* Back sections */
.back-section{padding:10px 0;border-bottom:1px solid var(--border)}
.back-section:last-of-type{border-bottom:none}
.back-section-label{font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:5px}
.back-section.strokes-section{display:flex;align-items:center;gap:10px;padding:8px 0}
.back-section.strokes-section .back-section-label{margin-bottom:0}
.back-strokes{font-family:'Fraunces',serif;font-size:20px;color:var(--ink);font-weight:600}
.back-memory{font-size:12px;line-height:1.45;color:var(--ink)}
.back-class{font-size:13px;line-height:1.5}
.back-acrophonic{font-size:13px;line-height:1.5}
.back-acrophonic-thai{font-family:'Noto Sans Thai',sans-serif;font-size:18px}
.back-placement{font-size:13px;line-height:1.5}

/* Back nav strip */
.back-nav-strip{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-top:1px solid var(--border);background:var(--input-bg);flex-shrink:0;height:56px;width:100%;border-bottom:none}
#number-text-back{font-size:12px;color:var(--muted);letter-spacing:.05em}

/* ===== CONTROLS ===== */
.controls{padding:8px 0 24px}
.ctrl-row{display:flex;gap:8px;margin-bottom:8px}
.ctrl-mid-row{display:flex;gap:8px;align-items:stretch}
.ctrl-side-col{display:flex;flex-direction:column;gap:8px;flex:1}
.ctrl-btn{display:flex;align-items:center;justify-content:center;gap:6px;padding:10px 0;background:var(--card-bg);border:1px solid var(--border);border-radius:10px;font-family:'DM Mono',monospace;font-size:12px;cursor:pointer;color:var(--ink);flex:1}
.ctrl-btn:hover{border-color:var(--rust)}
.ctrl-btn.accent{background:var(--rust);color:#fff;border-color:var(--rust);font-weight:500}
.ctrl-btn.accent:hover{background:var(--rust-light)}
.ctrl-icon{font-size:14px}
.ctrl-flip-center{flex:0 0 80px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ctrl-flip-icon{display:flex;align-items:center}
.dc-inner{text-align:center}
.dc-emoji{font-size:48px;margin-bottom:8px}
.dc-title{font-family:'Fraunces',serif;font-size:20px;font-weight:700}
.dc-msg{font-size:13px;color:var(--muted);margin:8px 0 16px;line-height:1.5}
.dc-buttons{display:flex;gap:8px;justify-content:center}
.dc-btn-primary{padding:10px 24px;background:var(--rust);color:#fff;border:none;border-radius:10px;font-family:'Fraunces',serif;font-size:14px;cursor:pointer}
.dc-btn-secondary{padding:10px 24px;background:none;border:1px solid var(--border);border-radius:10px;font-family:'DM Mono',monospace;font-size:12px;cursor:pointer;color:var(--muted)}
@media(max-width:380px){h1{font-size:19px}.ctrl-btn{font-size:11px;padding:8px 0}}