:root{--teal-900: #0b4f55;--teal-700: #0f6f72;--teal-500: #2a9d94;--teal-100: #d9f0ee;--amber-500: #e8a33d;--amber-100: #fbeeda;--coral-500: #e2705f;--ink: #22333b;--ink-soft: #4a5a62;--bg: #f7faf9;--card: #ffffff;--border: #e3edeb;--shadow: 0 1px 3px rgba(11, 79, 85, .08), 0 4px 14px rgba(11, 79, 85, .06);--shadow-lg: 0 4px 12px rgba(11, 79, 85, .12), 0 10px 30px rgba(11, 79, 85, .1);--radius: 14px;--radius-sm: 9px;--font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6}a{color:var(--teal-700);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.25;margin:0 0 .5em}h1{font-size:clamp(1.9rem,4vw,2.6rem)}h2{font-size:clamp(1.4rem,3vw,1.8rem)}p{margin:0 0 1em}img{max-width:100%}:focus-visible{outline:3px solid var(--amber-500);outline-offset:2px;border-radius:4px}.container{max-width:1080px;margin:0 auto;padding:0 20px}.navbar{background:var(--teal-900);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 2px 8px #00000026}.navbar-inner{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:1.15rem}.brand:hover{text-decoration:none}.brand-logo{width:38px;height:38px;border-radius:10px;flex-shrink:0;box-shadow:0 2px 6px #00000040;display:block}.nav-links{display:flex;gap:4px;flex-wrap:wrap}.nav-links a{color:#ffffffe0;padding:8px 12px;border-radius:8px;font-size:.95rem;font-weight:500}.nav-links a:hover{background:#ffffff1f;text-decoration:none;color:#fff}.nav-links a.active{background:#ffffff2e;color:#fff}main{min-height:calc(100vh - 220px);padding:32px 0 64px}footer{background:var(--teal-900);color:#ffffffd9;padding:28px 20px;font-size:.9rem}.footer-inner{max-width:1080px;margin:0 auto;display:flex;gap:24px;flex-wrap:wrap;align-items:baseline}footer a{color:var(--amber-100)}.hero{background:linear-gradient(135deg,var(--teal-900) 0%,var(--teal-700) 100%);color:#fff;border-radius:var(--radius);padding:48px 40px;margin-bottom:40px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:#ffffff0f}.hero h1{max-width:640px}.hero p{max-width:560px;color:#ffffffeb;font-size:1.1rem}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:10px;font-weight:600;font-size:1rem;border:none;cursor:pointer;transition:transform .08s ease,box-shadow .15s ease,background .15s ease;font-family:inherit}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--amber-500);color:#fff;box-shadow:0 4px 12px #e8a33d66}.btn-primary:hover{background:#d6932f}.btn-secondary{background:#ffffff29;color:#fff;border:1px solid rgba(255,255,255,.35)}.btn-secondary:hover{background:#ffffff42}.btn-teal{background:var(--teal-700);color:#fff}.btn-teal:hover{background:var(--teal-900)}.btn-ghost{background:transparent;color:var(--teal-700);border:2px solid var(--teal-500)}.btn-ghost:hover{background:var(--teal-100)}.btn-danger{background:transparent;color:var(--coral-500);border:1.5px solid var(--coral-500);padding:6px 12px;font-size:.85rem}.btn-danger:hover{background:var(--coral-500);color:#fff}.btn-sm{padding:8px 14px;font-size:.9rem}.btn-block{width:100%;justify-content:center}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.card-hover:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);transition:all .15s ease}.badge{display:inline-block;padding:4px 12px;border-radius:999px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}.badge-teal{background:var(--teal-100);color:var(--teal-900)}.badge-amber{background:var(--amber-100);color:#8a5a0f}.page-header{margin-bottom:28px}.page-header p{color:var(--ink-soft);font-size:1.05rem;max-width:720px}.toolbar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}.search-input{flex:1 1 260px;padding:11px 16px;border-radius:10px;border:1.5px solid var(--border);font-size:1rem;font-family:inherit;background:var(--card)}.search-input:focus{border-color:var(--teal-500);outline:none;box-shadow:0 0 0 3px #2a9d9426}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{padding:9px 16px;border-radius:999px;border:1.5px solid var(--border);background:var(--card);cursor:pointer;font-size:.9rem;font-weight:500;color:var(--ink-soft);font-family:inherit;transition:all .12s ease}.chip:hover{border-color:var(--teal-500);color:var(--teal-700)}.chip.active{background:var(--teal-700);border-color:var(--teal-700);color:#fff}.resource-card{display:flex;flex-direction:column;gap:10px}.resource-card .org{color:var(--teal-700);font-weight:600;font-size:.9rem}.resource-card .audience{color:var(--ink-soft);font-size:.85rem;font-style:italic}.resource-card p{margin:0;color:var(--ink-soft);font-size:.95rem}.resource-card .link{margin-top:auto;font-weight:600;font-size:.95rem}.timeline{position:relative;padding-left:28px;display:grid;gap:24px}.timeline:before{content:"";position:absolute;left:10px;top:8px;bottom:8px;width:3px;background:var(--teal-100);border-radius:3px}.timeline-item{position:relative}.timeline-dot{position:absolute;left:-28px;top:6px;width:20px;height:20px;border-radius:50%;background:var(--amber-500);border:4px solid var(--bg);box-shadow:0 0 0 3px var(--amber-100)}.timeline-item:nth-child(2) .timeline-dot{background:var(--teal-500);box-shadow:0 0 0 3px var(--teal-100)}.timeline-item:nth-child(3) .timeline-dot{background:var(--coral-500);box-shadow:0 0 0 3px #f6dfda}.milestone-num{font-weight:800;color:var(--amber-500);font-size:.9rem;letter-spacing:.06em}.quiz-step{max-width:640px;margin:0 auto}.quiz-progress{height:8px;background:var(--teal-100);border-radius:999px;overflow:hidden;margin-bottom:28px}.quiz-progress-bar{height:100%;background:var(--teal-500);border-radius:999px;transition:width .25s ease}.option-list{display:grid;gap:10px;margin-bottom:24px}.option-btn{text-align:left;padding:14px 18px;border-radius:12px;border:2px solid var(--border);background:var(--card);font-family:inherit;font-size:1rem;color:var(--ink);cursor:pointer;transition:all .12s ease}.option-btn:hover{border-color:var(--teal-500);background:var(--teal-100)}.option-btn.selected{border-color:var(--teal-700);background:var(--teal-100);box-shadow:0 0 0 3px #2a9d9426}.quiz-nav{display:flex;justify-content:space-between;gap:12px}.child-bar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:24px}.child-chip{padding:10px 18px;border-radius:999px;border:2px solid var(--border);background:var(--card);cursor:pointer;font-family:inherit;font-size:.95rem;font-weight:600;color:var(--ink-soft)}.child-chip.active{border-color:var(--teal-700);background:var(--teal-700);color:#fff}.domain-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.milestone-list{display:grid;gap:10px}.milestone-item{display:flex;align-items:flex-start;gap:14px;padding:16px 18px;border-radius:12px;border:1.5px solid var(--border);background:var(--card);cursor:pointer;transition:all .12s ease;text-align:left;font-family:inherit;color:var(--ink);width:100%}.milestone-item:hover{border-color:var(--teal-500)}.milestone-item.achieved{background:var(--teal-100);border-color:var(--teal-500)}.check{flex-shrink:0;width:26px;height:26px;border-radius:50%;border:2px solid var(--teal-500);display:grid;place-items:center;font-size:.9rem;color:transparent;margin-top:2px}.milestone-item.achieved .check{background:var(--teal-700);border-color:var(--teal-700);color:#fff}.milestone-item .m-age{font-size:.78rem;font-weight:700;color:var(--amber-500);text-transform:uppercase;letter-spacing:.05em}.milestone-item .m-note{font-size:.85rem;color:var(--ink-soft);margin-top:2px}.empty-state{text-align:center;padding:40px 20px;color:var(--ink-soft)}.fs-card{text-align:center}.fs-letter{font-size:clamp(4rem,12vw,6rem);font-weight:800;color:var(--teal-700);line-height:1;margin:8px 0 4px;letter-spacing:.02em}.fs-desc{color:var(--ink-soft);max-width:480px;margin:0 auto 20px}.fs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(74px,1fr));gap:10px}.fs-cell{border:1.5px solid var(--border);background:var(--card);border-radius:12px;padding:12px 6px;cursor:pointer;text-align:center;font-family:inherit;transition:all .12s ease}.fs-cell:hover{border-color:var(--teal-500);background:var(--teal-100)}.fs-cell .l{font-size:1.7rem;font-weight:700;color:var(--teal-700);display:block}.fs-cell .d{font-size:.72rem;color:var(--ink-soft);display:block;margin-top:2px}.name-practice input{font-size:1.1rem;letter-spacing:.1em;text-transform:uppercase}.quiz-feedback{margin-top:20px;padding:16px;border-radius:12px;font-weight:600}.quiz-feedback.correct{background:var(--teal-100);color:var(--teal-900)}.quiz-feedback.incorrect{background:#fce8e4;color:#9c3b2e}.score-row{display:flex;gap:24px;justify-content:center;flex-wrap:wrap;margin-bottom:20px;color:var(--ink-soft);font-weight:600}.ling-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}.sound-card{border:2px solid var(--border);background:var(--card);border-radius:var(--radius);padding:20px 16px;text-align:center;transition:all .15s ease}.sound-card.playing{border-color:var(--amber-500);background:var(--amber-100);box-shadow:0 0 0 4px #e8a33d2e}.sound-phoneme{font-size:3rem;font-weight:800;color:var(--teal-700);line-height:1}.sound-word{color:var(--ink-soft);font-size:.9rem;margin:6px 0 2px}.sound-freq{font-size:.78rem;font-weight:700;color:var(--amber-500);margin-bottom:14px}.spectrum{margin-top:16px}.spectrum-bar{position:relative;height:44px;border-radius:10px;background:linear-gradient(90deg,var(--teal-100) 0%,var(--teal-500) 55%,var(--teal-900) 100%)}.spectrum-marker{position:absolute;top:50%;transform:translate(-50%,-50%);width:34px;height:34px;border-radius:50%;background:var(--amber-500);color:#fff;display:grid;place-items:center;font-weight:800;font-size:.9rem;box-shadow:0 2px 6px #00000040}.spectrum-axis{display:flex;justify-content:space-between;color:var(--ink-soft);font-size:.78rem;margin-top:6px}.step-num{width:30px;height:30px;border-radius:50%;background:var(--teal-100);color:var(--teal-900);font-weight:800;display:grid;place-items:center;margin-bottom:10px}.table-wrap{overflow-x:auto;margin-bottom:16px}.data-table{width:100%;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;min-width:560px}.data-table th,.data-table td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--border);vertical-align:top}.data-table th{background:var(--teal-900);color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em}.data-table tr:last-child td{border-bottom:none}.data-table tbody tr:hover{background:var(--teal-100)}.user-menu{display:flex;align-items:center;gap:10px}.user-link{color:#ffffffe0;padding:6px 10px;border-radius:8px;font-size:.9rem;font-weight:500}.user-link:hover{background:#ffffff1f;text-decoration:none;color:#fff}.user-name{font-weight:600;font-size:.9rem;color:var(--amber-100);white-space:nowrap}.thread-list{display:grid;gap:10px}.thread-row{display:flex;align-items:center;justify-content:space-between;gap:14px;background:var(--card);border:1.5px solid var(--border);border-radius:12px;padding:16px 20px;transition:all .12s ease;color:var(--ink)}.thread-row:hover{border-color:var(--teal-500);box-shadow:var(--shadow);text-decoration:none;transform:translateY(-1px)}.thread-title{font-weight:600;font-size:1.02rem;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.thread-meta{color:var(--ink-soft);font-size:.85rem;margin-top:2px}.post-body{white-space:pre-wrap;line-height:1.7;margin:0 0 16px}.post-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.reply-list{display:grid;gap:12px}.reply{border-left:4px solid var(--teal-100)}.reply-meta{color:var(--ink-soft);font-size:.9rem;margin-bottom:8px}.mod-resolved{opacity:.6}.callout{border-left:5px solid var(--amber-500);background:var(--amber-100);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:16px 20px;margin:20px 0}.callout-teal{border-left-color:var(--teal-500);background:var(--teal-100)}.disclaimer{font-size:.85rem;color:#ffffffbf}.field{display:grid;gap:6px;margin-bottom:16px}.field label{font-weight:600;font-size:.92rem}.field input,.field select,.field textarea{padding:11px 14px;border-radius:10px;border:1.5px solid var(--border);font-family:inherit;font-size:1rem;background:var(--card)}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--teal-500);outline:none;box-shadow:0 0 0 3px #2a9d9426}.spinner{text-align:center;color:var(--ink-soft);padding:40px 0}.section-label{font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--teal-500);margin-bottom:6px}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}.stat{text-align:center;padding:20px}.stat .num{font-size:2rem;font-weight:800;color:var(--teal-700);display:block}.stat .lbl{color:var(--ink-soft);font-size:.9rem}@media (max-width: 600px){.hero{padding:32px 24px}.navbar-inner{flex-direction:column;align-items:stretch;gap:8px}.nav-links{justify-content:center}}