:root{--bg:#0b0b0f;--panel:#14141b;--panel-2:#1c1c26;--border:#2a2a37;--text:#eef0f6;--muted:#9aa0b4;--accent:#6f7ff0;--accent-strong:#4763ca}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer}.btn{border:1px solid var(--border);background:var(--panel-2);color:var(--text);border-radius:10px;padding:10px 16px;font-size:14px;font-weight:600;transition:background .15s,border .15s}.btn:hover{background:#24242f}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent-strong);border-color:var(--accent-strong);color:#fff}.btn-primary:hover{background:#3a53b5}.container{max-width:920px;margin:0 auto;padding:48px 24px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.5px}.brand-mark{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--accent),var(--accent-strong))}.hero{text-align:center;margin-top:12vh}.hero h1{font-size:34px;margin:0 0 10px}.hero p{color:var(--muted);margin:0 0 28px}.style-picker{display:flex;gap:16px;margin-bottom:20px}.style-card{flex:1 1;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:14px;text-align:left;color:var(--text);transition:border .15s}.style-card.active,.style-card:hover{border-color:var(--accent)}.style-card.active{box-shadow:0 0 0 1px var(--accent)}.style-card-label{font-weight:700;font-size:14px;margin-top:10px}.style-card-desc{font-size:12px;color:var(--muted);margin-top:4px;line-height:1.4}.style-preview{width:100%;height:90px;border-radius:8px;overflow:hidden;position:relative}.style-preview-storyteller{background:linear-gradient(180deg,#3a4160 0,#3a4160 55%,#0e0f16 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