:root{--cht-primary:#FF2D55;--cht-primary-hover:#E0193F;--cht-primary-light:rgba(255,45,85,.06);--cht-primary-border:rgba(255,45,85,.2);--cht-primary-glow:rgba(255,45,85,.18);--cht-bg:#FAFAF8;--cht-bg-dark:#09090B;--cht-surface:#18181B;--cht-surface-2:#27272A;--cht-text:#FAFAFA;--cht-muted:#A1A1AA;--cht-border:rgba(255,255,255,.07);--cht-radius:14px;--cht-high:#FF3B30;--cht-mid:#FFD60A;--cht-niche:#34C759}.cht-page{background:var(--cht-bg);min-height:100vh;font-family:'DM Sans',sans-serif}.cht-page .landing-hero{background:linear-gradient(155deg,#09090B 0%,#1a0a10 35%,#25101a 60%,#0e0810 100%)}.cht-page .landing-hero::before{background:radial-gradient(ellipse 45% 55% at 60% 25%,rgba(255,45,85,.12),transparent),radial-gradient(ellipse 35% 40% at 25% 80%,rgba(224,25,63,.08),transparent)}.cht-page .landing-eyebrow{color:var(--cht-primary)}.cht-page .landing-cta-primary{background:var(--cht-primary);box-shadow:0 4px 14px var(--cht-primary-glow)}.cht-page .landing-cta-primary:hover{background:var(--cht-primary-hover)}.cht-page .landing-stat-val.pink{color:var(--cht-primary)}.cht-page .feature-card:hover{border-color:var(--cht-primary-border)}.cht-page .landing-badge.ai{color:var(--cht-primary);background:rgba(255,45,85,.1);border-color:rgba(255,45,85,.2)}.cht-demo-card{background:var(--cht-bg-dark);border:1px solid rgba(255,45,85,.15);border-radius:20px;padding:28px;color:#fff;max-width:400px}.cht-demo-input{background:rgba(255,255,255,.05);border:1px solid var(--cht-border);border-radius:10px;padding:12px 14px;color:rgba(255,255,255,.5);font-size:13px;width:100%;margin-bottom:16px;font-style:italic}.cht-demo-tags{display:flex;flex-wrap:wrap;gap:6px}.cht-demo-tag{padding:5px 12px;border-radius:16px;font-size:12px;font-weight:600}.cht-demo-tag.high{background:rgba(255,59,48,.15);color:#FF3B30}.cht-demo-tag.mid{background:rgba(255,214,10,.12);color:#FFD60A}.cht-demo-tag.niche{background:rgba(52,199,89,.12);color:#34C759}.cht-app{background:var(--cht-bg-dark);min-height:100vh;color:var(--cht-text);font-family:'DM Sans',sans-serif;display:flex;flex-direction:column}.cht-app-header{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;border-bottom:1px solid var(--cht-border);background:var(--cht-surface);z-index:20;flex-shrink:0}.cht-app-logo{font-size:.85rem;font-weight:800;color:#fff;text-decoration:none;display:flex;align-items:center;gap:8px}.cht-app-logo span{color:var(--cht-primary);font-size:1rem}.cht-header-actions{display:flex;align-items:center;gap:8px}.cht-btn-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.05);border:1px solid var(--cht-border);color:var(--cht-muted);cursor:pointer;font-size:1rem;transition:all .15s}.cht-btn-icon:hover{background:var(--cht-surface-2);color:#fff}.cht-workspace{flex:1;display:flex;flex-direction:column;padding:24px 20px 40px;max-width:720px;margin:0 auto;width:100%}.cht-input-card{background:var(--cht-surface);border:1px solid var(--cht-border);border-radius:var(--cht-radius);padding:24px}.cht-input-label{font-size:13px;font-weight:600;color:var(--cht-muted);margin-bottom:8px;display:block}.cht-input-field{width:100%;background:var(--cht-bg-dark);border:1px solid var(--cht-border);border-radius:10px;padding:14px 16px;color:#fff;font-size:15px;font-family:'DM Sans',sans-serif;resize:none;min-height:60px;box-sizing:border-box;transition:all .2s}.cht-input-field:focus{outline:none;border-color:var(--cht-primary);box-shadow:0 0 0 3px var(--cht-primary-light)}.cht-input-field::placeholder{color:rgba(255,255,255,.25)}.cht-platforms{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}.cht-platform-pill{background:var(--cht-bg-dark);border:1px solid var(--cht-border);border-radius:9999px;padding:8px 16px;font-size:13px;font-weight:600;color:var(--cht-muted);cursor:pointer;transition:all .15s;user-select:none}.cht-platform-pill:hover{border-color:rgba(255,255,255,.15);color:#fff}.cht-platform-pill.active{background:var(--cht-primary);border-color:var(--cht-primary);color:#fff;box-shadow:0 2px 8px var(--cht-primary-glow)}.cht-generate-btn{background:var(--cht-primary);color:#fff;border:none;border-radius:10px;padding:14px 28px;font-size:15px;font-weight:700;cursor:pointer;width:100%;margin-top:16px;transition:all .2s;position:relative;font-family:'DM Sans',sans-serif}.cht-generate-btn:hover{background:var(--cht-primary-hover);box-shadow:0 6px 20px var(--cht-primary-glow)}.cht-generate-btn:disabled{opacity:.5;cursor:not-allowed}.cht-generate-btn .cht-spinner{display:none;width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:chtSpin .8s linear infinite;margin-right:8px;vertical-align:middle}.cht-generate-btn.loading .cht-spinner{display:inline-block}@keyframes chtSpin{to{transform:rotate(360deg)}}.cht-shimmer-card{background:var(--cht-surface);border:1px solid var(--cht-border);border-radius:var(--cht-radius);padding:24px;margin-top:16px;overflow:hidden;position:relative}.cht-shimmer-card::after{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,45,85,.06),transparent);animation:chtShimmer 1.5s ease infinite}@keyframes chtShimmer{to{left:100%}}.cht-shimmer-line{height:14px;border-radius:6px;background:rgba(255,255,255,.05);margin-bottom:12px}.cht-output{margin-top:16px;display:flex;flex-direction:column;gap:12px}.cht-set-card{background:var(--cht-surface);border:1px solid var(--cht-border);border-radius:var(--cht-radius);padding:20px;animation:chtFadeIn .4s ease}@keyframes chtFadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.cht-set-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.cht-set-name{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--cht-primary)}.cht-set-strategy{font-size:12px;color:var(--cht-muted);font-style:italic}.cht-set-meta{font-size:12px;color:var(--cht-muted);margin-top:12px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}.cht-tags{display:flex;flex-wrap:wrap;gap:8px}.cht-tag{padding:6px 14px;border-radius:9999px;font-size:13px;font-weight:600;cursor:pointer;transition:all .15s;border:1px solid transparent;user-select:none}.cht-tag:hover{transform:scale(1.05)}.cht-tag.selected{outline:2px solid #fff;outline-offset:1px}.cht-tag[data-reach="high"]{background:rgba(255,59,48,.12);color:var(--cht-high);border-color:rgba(255,59,48,.2)}.cht-tag[data-reach="mid"]{background:rgba(255,214,10,.1);color:var(--cht-mid);border-color:rgba(255,214,10,.18)}.cht-tag[data-reach="niche"]{background:rgba(52,199,89,.1);color:var(--cht-niche);border-color:rgba(52,199,89,.18)}.cht-action-btn{background:transparent;border:1px solid var(--cht-border);border-radius:8px;padding:6px 14px;font-size:12px;font-weight:600;color:var(--cht-muted);cursor:pointer;display:flex;align-items:center;gap:4px;transition:all .15s}.cht-action-btn:hover{background:var(--cht-primary-light);border-color:var(--cht-primary-border);color:#fff}.cht-mix-card{background:var(--cht-surface);border:1px solid var(--cht-primary-border);border-radius:var(--cht-radius);padding:20px;animation:chtFadeIn .5s ease}.cht-mix-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.cht-mix-title{font-size:14px;font-weight:700;color:var(--cht-primary);display:flex;align-items:center;gap:8px}.cht-mix-count{font-size:12px;color:var(--cht-muted)}.cht-mix-tags{display:flex;flex-wrap:wrap;gap:6px;min-height:40px}.cht-mix-empty{font-size:13px;color:rgba(255,255,255,.25);padding:8px 0}.cht-mix-actions{display:flex;gap:8px;margin-top:14px;padding-top:14px;border-top:1px solid var(--cht-border)}.cht-mix-warn{font-size:11px;color:#FF9500;margin-top:8px;display:none}.cht-mix-warn.show{display:block}.cht-trending-note{background:rgba(255,149,0,.06);border:1px solid rgba(255,149,0,.15);border-radius:var(--cht-radius);padding:14px;font-size:13px;color:rgba(255,255,255,.8);line-height:1.5}.cht-avoid-list{background:rgba(255,59,48,.05);border:1px solid rgba(255,59,48,.12);border-radius:var(--cht-radius);padding:14px;font-size:12px;color:var(--cht-muted);line-height:1.6}.cht-avoid-title{font-size:11px;font-weight:700;text-transform:uppercase;color:rgba(255,59,48,.7);margin-bottom:6px}.cht-legend{display:flex;gap:16px;margin-top:14px;flex-wrap:wrap}.cht-legend-item{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--cht-muted)}.cht-legend-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.cht-legend-dot.high{background:var(--cht-high)}.cht-legend-dot.mid{background:var(--cht-mid)}.cht-legend-dot.niche{background:var(--cht-niche)}.cht-history-overlay{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.6);backdrop-filter:blur(4px)}.cht-history-panel{position:absolute;right:0;top:0;bottom:0;width:100%;max-width:380px;background:var(--cht-surface);border-left:1px solid var(--cht-border);overflow-y:auto;padding:20px}.cht-history-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.cht-history-header h3{font-size:16px;font-weight:700}.cht-history-item{background:var(--cht-bg-dark);border:1px solid var(--cht-border);border-radius:12px;padding:14px;margin-bottom:8px;cursor:pointer;transition:border-color .15s}.cht-history-item:hover{border-color:rgba(255,255,255,.15)}.cht-history-plat{font-size:12px;color:var(--cht-primary);font-weight:700;margin-bottom:4px}.cht-history-topic{font-size:14px;color:rgba(255,255,255,.8);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.cht-history-time{font-size:11px;color:var(--cht-muted);margin-top:4px}.cht-history-empty{color:var(--cht-muted);font-size:13px;text-align:center;padding:40px 0}.cht-toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--cht-surface);color:#fff;border:1px solid var(--cht-border);padding:10px 20px;border-radius:10px;font-size:13px;font-weight:600;opacity:0;transition:all .3s;z-index:999;pointer-events:none;white-space:nowrap;box-shadow:0 8px 24px rgba(0,0,0,.4)}.cht-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}@media (max-width:640px){.cht-input-card{padding:18px}.cht-set-card,.cht-mix-card{padding:16px}.cht-tag{padding:5px 12px;font-size:12px}.cht-set-header{flex-direction:column;align-items:flex-start;gap:6px}.cht-workspace{padding:16px 12px 40px}}