:root{--bg:oklch(16% 0.012 275);--bg-elevated:oklch(20% 0.014 275);--surface:oklch(23% 0.016 275);--surface-2:oklch(27% 0.018 275);--border:oklch(34% 0.02 275);--border-strong:oklch(44% 0.03 275);--text:oklch(96% 0.006 90);--text-muted:oklch(72% 0.01 275);--text-faint:oklch(58% 0.012 275);--accent:oklch(62% 0.19 285);--accent-hover:oklch(68% 0.19 285);--accent-soft:oklch(62% 0.19 285/0.14);--good:oklch(72% 0.16 155);--good-soft:oklch(72% 0.16 155/0.14);--warn:oklch(78% 0.15 75);--warn-soft:oklch(78% 0.15 75/0.14);--bad:oklch(64% 0.2 25);--bad-soft:oklch(64% 0.2 25/0.14);--text-hero:clamp(2.2rem,1.2rem + 3.5vw,3.6rem);--text-h2:clamp(1.35rem,1rem + 1.2vw,1.8rem);--radius:14px;--radius-sm:9px;--space-section:clamp(2rem,1.4rem + 3vw,4rem);--duration:200ms;--ease:cubic-bezier(0.16,1,0.3,1);--font-sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--font-mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,monospace}*{box-sizing:border-box}body,html{padding:0;margin:0}body{background:radial-gradient(1100px 600px at 78% -10%,var(--accent-soft),transparent 60%),var(--bg);color:var(--text);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;min-height:100vh;line-height:1.5}a{color:inherit;text-decoration:none}h1,h2,h3{margin:0;letter-spacing:-.02em;font-weight:680}.mono{font-family:var(--font-mono)}.shell{max-width:1080px;margin:0 auto;padding:var(--space-section) 24px}.narrow{max-width:460px;margin:0 auto}.center-screen{min-height:100vh;display:grid;place-items:center;padding:24px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.03em;font-size:1.05rem}.brand-dot{width:11px;height:11px;border-radius:3px;background:var(--accent);box-shadow:0 0 18px var(--accent)}.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;color:var(--accent);font-weight:640}.card{background:linear-gradient(180deg,var(--surface),var(--bg-elevated));border:1px solid var(--border);border-radius:var(--radius);padding:22px}.card+.card{margin-top:14px}label{display:block;font-size:.82rem;color:var(--text-muted);margin-bottom:6px;font-weight:560}.field+.field{margin-top:14px}input[type=email],input[type=password],input[type=text],textarea{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);padding:11px 12px;font-size:.95rem;font-family:inherit;transition:border-color var(--duration) var(--ease)}textarea{font-family:var(--font-mono);font-size:.8rem;resize:vertical}input:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--radius-sm);padding:11px 18px;font-size:.92rem;font-weight:620;font-family:inherit;cursor:pointer;transition:transform var(--duration) var(--ease),background var(--duration) var(--ease),border-color var(--duration) var(--ease)}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;border-color:var(--border-strong);color:var(--text)}.btn-ghost:hover{background:var(--surface-2)}.btn-block{width:100%}.bookmarklet{display:inline-flex;align-items:center;gap:9px;background:var(--accent);color:#fff;font-weight:660;padding:12px 18px;border-radius:var(--radius-sm);cursor:-webkit-grab;cursor:grab;box-shadow:0 8px 24px var(--accent-soft);-webkit-user-select:none;-moz-user-select:none;user-select:none}.bookmarklet:active{cursor:-webkit-grabbing;cursor:grabbing}.pill{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;font-weight:640;padding:4px 10px;border-radius:999px;border:1px solid transparent}.pill:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}.pill-good{color:var(--good);background:var(--good-soft)}.pill-warn{color:var(--warn);background:var(--warn-soft)}.pill-bad{color:var(--bad);background:var(--bad-soft)}.pill-idle{color:var(--text-faint);background:var(--surface-2)}.muted{color:var(--text-muted)}.faint{color:var(--text-faint)}.small{font-size:.85rem}.stack{flex-direction:column;gap:8px}.row,.stack{display:flex}.row{align-items:center;gap:12px}.between{justify-content:space-between}.notice{border-radius:var(--radius-sm);padding:11px 13px;font-size:.85rem;line-height:1.5}.notice-bad{background:var(--bad-soft);color:var(--bad);border:1px solid var(--bad)}.notice-good{background:var(--good-soft);color:var(--good);border:1px solid var(--good)}.notice-warn{background:var(--warn-soft);color:var(--warn);border:1px solid var(--warn)}.step-dots{display:flex;gap:8px;margin-bottom:20px}.step-dot{height:4px;flex:1 1;border-radius:2px;background:var(--border);transition:background var(--duration) var(--ease)}.step-dot.active{background:var(--accent)}.step-dot.done{background:var(--good)}.hint{font-size:.82rem;color:var(--text-faint);line-height:1.55}.placeholder-visual{border:1px dashed var(--border-strong);border-radius:var(--radius-sm);background:repeating-linear-gradient(45deg,var(--surface),var(--surface) 12px,var(--bg-elevated) 12px,var(--bg-elevated) 24px);aspect-ratio:16/8;display:grid;place-items:center;color:var(--text-faint);font-size:.8rem;text-align:center;padding:12px}.chat-shell{display:grid;grid-template-columns:280px 1fr;height:100vh;overflow:hidden}.chat-sidebar{border-right:1px solid var(--border);background:var(--bg-elevated);padding:16px 14px;gap:12px;overflow-y:auto}.chat-main,.chat-sidebar{display:flex;flex-direction:column}.chat-main{height:100vh;overflow:hidden}.chat-scroll{flex:1 1;overflow-y:auto;padding:28px clamp(16px,5vw,64px)}.chat-inner{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:18px}.sidebar-select{padding:9px 10px;font-size:.85rem}.thread-item{padding:9px 11px;border-radius:var(--radius-sm);font-size:.86rem;color:var(--text-muted);cursor:pointer;border:1px solid transparent;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.thread-item:hover{background:var(--surface)}.thread-item.active{background:var(--surface-2);color:var(--text);border-color:var(--border)}.nav-item{display:flex;align-items:center;justify-content:space-between;padding:8px 11px;border-radius:var(--radius-sm);font-size:.85rem;color:var(--text-faint)}.msg{display:flex;gap:12px}.msg-role{flex-shrink:0;width:30px;height:30px;border-radius:8px;display:grid;place-items:center;font-size:.7rem;font-weight:700}.msg-user .msg-role{background:var(--surface-2);color:var(--text-muted)}.msg-assistant .msg-role{background:var(--accent);color:#fff}.msg-body{padding-top:4px;font-size:.95rem;line-height:1.6;white-space:pre-wrap;color:var(--text);flex:1 1;min-width:0}.chat-status{font-size:.8rem;color:var(--text-faint);font-style:italic}.composer{border-top:1px solid var(--border);padding:14px clamp(16px,5vw,64px);background:var(--bg-elevated)}.composer-inner{max-width:760px;margin:0 auto;display:flex;gap:10px;align-items:flex-end}.composer textarea{flex:1 1;height:46px;max-height:160px;font-family:var(--font-sans);font-size:.95rem}.suggestion{text-align:left;padding:13px 15px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);cursor:pointer;font-size:.9rem;transition:border-color var(--duration) var(--ease),transform var(--duration) var(--ease)}.suggestion:hover{border-color:var(--accent);transform:translateY(-1px)}.template-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));grid-gap:10px;gap:10px}.template-card{display:flex;flex-direction:column;align-items:flex-start;gap:4px;text-align:left;padding:14px 15px;border:1px solid var(--border);border-radius:var(--radius-sm);background:linear-gradient(180deg,var(--surface),var(--bg-elevated));color:var(--text);cursor:pointer;transition:border-color var(--duration) var(--ease),transform var(--duration) var(--ease)}.template-card:hover{border-color:var(--accent);transform:translateY(-1px)}.template-card-emoji{font-size:1.3rem;line-height:1}.template-card-title{font-weight:620;font-size:.92rem}.template-card-description{color:var(--text-muted);font-size:.8rem}.plan-card{border:1px solid var(--accent);border-radius:var(--radius);overflow:hidden;background:var(--surface)}.plan-head{padding:15px 18px;background:linear-gradient(180deg,var(--accent-soft),transparent);border-bottom:1px solid var(--border)}.plan-steps{list-style:none;margin:0;padding:6px 0}.plan-step{display:flex;gap:12px;padding:12px 18px;border-bottom:1px solid var(--border)}.plan-step:last-child{border-bottom:none}.plan-step-num{flex-shrink:0;width:24px;height:24px;border-radius:6px;background:var(--surface-2);color:var(--text-muted);display:grid;place-items:center;font-size:.78rem;font-weight:700}.plan-op{font-family:var(--font-mono);font-size:.72rem;color:var(--accent);background:var(--accent-soft);padding:1px 7px;border-radius:5px}.plan-actions{display:flex;gap:8px;padding:14px 18px;border-top:1px solid var(--border);background:var(--bg-elevated);flex-wrap:wrap;align-items:center}.destructive-flag{font-size:.7rem;font-weight:700;color:var(--bad);background:var(--bad-soft);padding:1px 7px;border-radius:5px}.site-footer{border-top:1px solid var(--border);padding:20px 24px 28px}.site-footer-inner{max-width:1080px;margin:0 auto;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}.footer-links{display:flex;gap:18px;flex-wrap:wrap}.footer-links a{color:var(--text-faint);font-size:.82rem;transition:color var(--duration) var(--ease)}.footer-links a:hover{color:var(--text-muted)}.legal-content{max-width:720px}.legal-content h2{font-size:1.2rem;margin:2.2em 0 .6em}.legal-content h2:first-child{margin-top:0}.legal-content h3{font-size:1.02rem;margin:1.6em 0 .5em}.legal-content p,.legal-content ul{color:var(--text);line-height:1.7;margin:0 0 1em}.legal-content ul{padding-left:1.3em}.legal-content li{margin-bottom:.5em}.legal-content li:last-child{margin-bottom:0}.legal-content a{color:var(--accent);text-decoration:underline;-webkit-text-decoration-color:var(--accent-soft);text-decoration-color:var(--accent-soft)}.legal-content a:hover{color:var(--accent-hover)}.legal-content strong{color:var(--text);font-weight:640}.legal-content table{width:100%;border-collapse:collapse;margin:1em 0 1.4em;font-size:.85rem}.legal-content td,.legal-content th{border:1px solid var(--border);padding:9px 11px;text-align:left;vertical-align:top;color:var(--text-muted)}.legal-content th{color:var(--text);background:var(--surface-2);font-weight:620}.checkbox-row{display:flex;align-items:flex-start;gap:10px}.checkbox-row input[type=checkbox]{margin-top:3px;width:16px;height:16px;accent-color:var(--accent);cursor:pointer;flex-shrink:0}.checkbox-row label{margin-bottom:0;font-size:.85rem;color:var(--text-muted);cursor:pointer}.checkbox-row a{color:var(--accent);text-decoration:underline}.checkbox-row a:hover{color:var(--accent-hover)}.usage-bar{height:10px;border-radius:999px;background:var(--surface-2);overflow:hidden}.usage-fill{height:100%;background:var(--accent);border-radius:999px;transition:width var(--duration) var(--ease)}.usage-fill.over{background:var(--warn)}.tier-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));grid-gap:12px;gap:12px}.tier{border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px;background:var(--surface)}