:root{--bg: #070b14;--panel: #101826;--panel-soft: #162033;--text: #e9f1ff;--muted: #b6c4dd;--accent: #61f2c2;--accent-dark: #21cfa0;--line: #2b3b58;--danger: #ff6d7f;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-7: 3rem;--radius: 14px}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{font-family:DM Sans,sans-serif;background:radial-gradient(1000px 500px at 15% -10%,rgba(97,242,194,.1),transparent),radial-gradient(900px 400px at 90% 5%,rgba(97,145,255,.12),transparent),var(--bg);color:var(--text)}h1,h2,h3,.brand{font-family:Manrope,sans-serif;letter-spacing:-.02em}.app-shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr auto}.top-bar{display:flex;justify-content:space-between;align-items:center;padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--line);position:sticky;top:0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#070b14bf;z-index:2}.top-bar-left{display:flex;align-items:center;gap:var(--space-2)}.back-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#10182699;color:var(--muted);cursor:pointer;padding:0;transition:background-color .18s ease,color .18s ease,border-color .18s ease}.back-btn:hover{background:#61f2c21a;border-color:var(--accent);color:var(--accent)}.brand{font-weight:700;margin:0}.landing{width:min(1120px,100%);margin:0 auto;padding:var(--space-7) var(--space-5)}.hero{background:linear-gradient(150deg,#162033e6,#0c131ff2);border:1px solid var(--line);border-radius:calc(var(--radius) + 4px);padding:clamp(1.75rem,2.2vw,3.25rem)}.eyebrow{margin:0;color:var(--accent);text-transform:uppercase;font-size:.78rem;letter-spacing:.08em}.hero h1{margin:var(--space-3) 0;font-size:clamp(2rem,4vw,3.5rem);line-height:1.08}.hero-copy{color:var(--muted);max-width:56ch;margin-bottom:var(--space-5)}.hero-actions{display:flex;flex-wrap:wrap;gap:var(--space-3)}.feature-grid{margin-top:var(--space-6);display:grid;gap:var(--space-4);grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}.feature-grid article{border:1px solid var(--line);border-radius:var(--radius);background:#101826b3;padding:var(--space-4)}.feature-grid p{color:var(--muted)}.workspace{width:min(1340px,100%);margin:0 auto;padding:var(--space-5);display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4)}.panel{border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg,#101826f2,#090e17f2);min-height:60vh}.form-panel{padding:var(--space-5);display:grid;gap:var(--space-3);align-content:start}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:var(--space-4)}.panel-head h2{margin:0}label{display:grid;gap:var(--space-2);color:var(--muted);font-size:.95rem}input,textarea,select{width:100%;border-radius:10px;border:1px solid #324568;background:var(--panel-soft);color:var(--text);padding:.72rem .85rem;font:inherit}input:focus-visible,textarea:focus-visible,select:focus-visible,button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}textarea{resize:vertical}.split{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3)}.output-panel{display:grid;grid-template-rows:auto 1fr}.output-panel .panel-head{padding:var(--space-5);border-bottom:1px solid var(--line)}.button-row,.control-row{display:flex;gap:var(--space-2);flex-wrap:wrap}.control-row select{flex:1 1 220px}pre{margin:0;white-space:pre-wrap;line-height:1.5;font-size:.94rem;padding:var(--space-5);color:var(--text);overflow:auto}button,.secondary-link{border-radius:10px;border:1px solid transparent;font:inherit;cursor:pointer;transition:transform .18s ease,background-color .18s ease,border-color .18s ease}button:hover,.secondary-link:hover{transform:translateY(-1px)}.primary-btn{background:linear-gradient(120deg,var(--accent),#6cd6ff);color:#08101a;padding:.74rem 1rem;font-weight:700}.secondary-btn,.ghost-btn{background:transparent;color:var(--text);border-color:#38507a;padding:.68rem .95rem}.danger-btn{border-color:#7a3340;color:#ffd0d7}.secondary-link{text-decoration:none;color:var(--muted);border:1px solid #38507a;padding:.68rem .95rem}.site-footer{border-top:1px solid var(--line);color:var(--muted);font-size:.88rem;padding:var(--space-3) var(--space-5)}@media (max-width: 1080px){.workspace{grid-template-columns:1fr}}@media (max-width: 700px){.top-bar,.landing,.workspace,.site-footer{padding-left:var(--space-4);padding-right:var(--space-4)}.hero{padding:var(--space-5)}.split{grid-template-columns:1fr}.button-row{width:100%}.button-row button{flex:1}.control-row{width:100%}.control-row button{flex:1}}