:root{
--bg:#f5f7fb;--surface:#fff;--surface2:#eef2f7;--text:#111827;--muted:#6b7280;
--line:#e5e7eb;--accent:#6d5dfc;--accent2:#8b7cff;--shadow:0 18px 50px rgba(15,23,42,.08);
--radius:22px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;background:radial-gradient(circle at 10% 0%,#ece9ff 0,transparent 28%),var(--bg);color:var(--text);transition:.25s}
button,select,input{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}
.app-shell{max-width:1240px;margin:auto;padding:20px 22px 30px}.topbar{height:58px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--accent),#a58cff);color:white;box-shadow:0 8px 20px #6d5dfc33}.top-actions{display:flex;gap:8px}.icon-btn,.ghost-btn,.small-btn,.secondary{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:12px;padding:9px 13px}.icon-btn{width:40px;padding:8px}
.hero{padding:58px 4px 38px;display:flex;justify-content:space-between;gap:30px;align-items:end}.eyebrow{font-size:11px;letter-spacing:.16em;font-weight:800;color:var(--accent)}h1{font-size:clamp(48px,8vw,92px);line-height:.9;margin:13px 0 18px;letter-spacing:-.065em}h1 span{color:var(--accent)}.hero p{max-width:700px;color:var(--muted);font-size:17px;line-height:1.7;margin:0}.hero-badge{padding:13px 17px;background:var(--surface);border:1px solid var(--line);border-radius:99px;white-space:nowrap;box-shadow:var(--shadow);font-size:13px}.hero-badge span{color:var(--accent)}
.workspace{display:grid;grid-template-columns:330px 1fr;gap:18px}.panel{background:color-mix(in srgb,var(--surface) 94%,transparent);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.controls{padding:22px}.panel-title{display:flex;gap:12px;align-items:center}.panel-title>span{width:36px;height:36px;display:grid;place-items:center;border-radius:12px;background:var(--surface2);color:var(--accent)}.panel-title b{display:block;font-size:14px}.panel-title small{display:block;color:var(--muted);font-size:11px;margin-top:2px}
label{display:block;font-size:12px;font-weight:700;margin-top:20px}label output{float:right;color:var(--accent)}select{width:100%;margin-top:8px;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:12px;padding:11px 12px;outline:none}.seg-label{font-size:12px;font-weight:700;margin-top:20px;margin-bottom:8px}.segmented{display:grid;grid-template-columns:repeat(3,1fr);gap:5px;padding:4px;background:var(--surface2);border-radius:13px}.segmented button{border:0;background:transparent;color:var(--muted);padding:9px 5px;border-radius:9px;font-size:12px}.segmented button.active{background:var(--surface);color:var(--text);box-shadow:0 2px 8px #00000010}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.check{font-weight:500;color:var(--muted);display:flex;align-items:center;gap:8px}.check input{accent-color:var(--accent)}
.control-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:22px}.primary{border:0;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border-radius:13px;padding:12px;font-weight:800;box-shadow:0 10px 22px #6d5dfc2e}.secondary{font-weight:700}
.output-panel{min-width:0;overflow:hidden}.output-head{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line)}.output-actions{display:flex;gap:7px}.small-btn{font-size:12px;font-weight:700}.canvas{min-height:450px;padding:28px 30px;outline:none;white-space:pre-wrap;line-height:1.85;font-size:16px;overflow:auto}.canvas:focus{box-shadow:inset 0 0 0 2px #6d5dfc22}.stats{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line)}.stats div{padding:15px 12px;border-right:1px solid var(--line)}.stats div:last-child{border-right:0}.stats span{display:block;font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.stats b{display:block;margin-top:4px;font-size:15px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:18px}.tip-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px}.tip-card>span{color:var(--accent);font-size:22px}.tip-card h3{font-size:15px;margin:12px 0 7px}.tip-card p{font-size:12px;color:var(--muted);line-height:1.6;margin:0}footer{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;padding:26px 3px 0}footer a{color:var(--accent);font-weight:700}
.toast{position:fixed;left:50%;bottom:25px;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:#111827;color:#fff;padding:12px 17px;border-radius:12px;font-size:13px;box-shadow:0 15px 35px #0004;transition:.25s;z-index:10}.toast.show{opacity:1;transform:translate(-50%,0)}
.modal{position:fixed;inset:0;background:#11182780;backdrop-filter:blur(8px);display:none;place-items:center;padding:20px;z-index:20}.modal.show{display:grid}.modal-card{position:relative;max-width:500px;background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:30px;box-shadow:0 30px 80px #0003}.modal-card h2{font-size:30px;letter-spacing:-.04em;margin:10px 0}.modal-card p{color:var(--muted);line-height:1.7}.modal-close{position:absolute;right:16px;top:14px;border:0;background:var(--surface2);border-radius:50%;width:32px;height:32px;font-size:20px}.modal-list{display:grid;grid-template-columns:1fr 1fr;gap:8px;font-size:12px;color:var(--muted)}
body.dark{--bg:#090d16;--surface:#101722;--surface2:#172131;--text:#eef2ff;--muted:#93a0b4;--line:#253044;--shadow:0 18px 50px #0005;background:radial-gradient(circle at 10% 0%,#251e52 0,transparent 30%),var(--bg)}
@media(max-width:850px){.workspace{grid-template-columns:1fr}.controls{order:2}.hero{padding-top:40px;display:block}.hero-badge{display:inline-block;margin-top:20px}.feature-grid{grid-template-columns:1fr}.canvas{min-height:360px}.stats{grid-template-columns:repeat(3,1fr)}.stats div:nth-child(4),.stats div:nth-child(5){border-top:1px solid var(--line)}}
@media(max-width:520px){.app-shell{padding:12px}.hero{padding:35px 3px 25px}h1{font-size:58px}.hero p{font-size:14px}.workspace{gap:12px}.panel{border-radius:18px}.output-head{align-items:flex-start;gap:10px}.output-actions{flex-direction:column}.canvas{padding:22px 18px;font-size:14px}.stats{grid-template-columns:repeat(2,1fr)}.stats div:nth-child(3){border-top:1px solid var(--line)}.modal-list{grid-template-columns:1fr}}