:root{font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;color-scheme:dark}body{margin:0;background:var(--bg);color:var(--text)}.app{min-height:100vh;padding:28px;position:relative;overflow:hidden;background:radial-gradient(circle at top right,color-mix(in srgb,var(--primary) 12%,transparent),transparent 28%),radial-gradient(circle at left bottom,color-mix(in srgb,var(--primary) 8%,transparent),transparent 24%),linear-gradient(180deg,color-mix(in srgb,var(--panel) 48%,transparent),transparent 220px),var(--bg)}.bg-orb{position:absolute;border-radius:999px;filter:blur(60px);pointer-events:none;opacity:.5}.bg-orb-a{top:-60px;right:-40px;width:240px;height:240px;background:color-mix(in srgb,var(--primary) 35%,transparent)}.bg-orb-b{bottom:80px;left:-80px;width:220px;height:220px;background:color-mix(in srgb,var(--panel-soft) 80%,transparent)}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;position:relative;z-index:1;margin:0 auto 24px;max-width:1380px}.brand{display:flex;gap:18px;align-items:center}.brand-logo-shell{display:inline-flex;align-items:center;justify-content:center;background:transparent;border-radius:0;padding:0;box-shadow:none}.brand strong{display:block;font-size:1rem;letter-spacing:.02em}.brand-logo{width:220px;max-width:42vw;height:auto}.eyebrow{margin:0 0 8px;text-transform:uppercase;letter-spacing:.16em;font-size:.72rem;font-weight:700;color:var(--primary)}.theme-toggle{display:inline-flex;align-items:center;gap:10px;padding:12px 16px;border-radius:999px;border:1px solid var(--border);background:color-mix(in srgb,var(--panel) 86%,transparent);color:var(--text);cursor:pointer;font-weight:700;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.theme-dot{width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 18px color-mix(in srgb,var(--primary) 70%,transparent)}.wizard-shell{max-width:980px;margin:0 auto 20px;position:relative;z-index:1}.stepper{display:flex;gap:10px;flex-wrap:wrap}.step-chip{border:1px solid color-mix(in srgb,var(--border) 80%,transparent);background:color-mix(in srgb,var(--panel-soft) 82%,transparent);color:var(--muted);padding:10px 14px;border-radius:999px;font-weight:700;cursor:pointer}.step-chip.active{color:var(--text);border-color:color-mix(in srgb,var(--primary) 45%,transparent);background:color-mix(in srgb,var(--primary) 14%,var(--panel-soft))}.step-chip:disabled{opacity:.5;cursor:default}.panel{position:relative;background:linear-gradient(180deg,color-mix(in srgb,var(--panel) 96%,white 4%),color-mix(in srgb,var(--panel) 92%,transparent)),color-mix(in srgb,var(--panel) 92%,transparent);border:1px solid color-mix(in srgb,var(--border) 82%,transparent);border-radius:24px;padding:22px;box-shadow:0 24px 80px #00000038,inset 0 1px #ffffff0a;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.panel-accent:before,.upload-panel:before,.download-panel:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:inherit;padding:1px;background:linear-gradient(140deg,color-mix(in srgb,var(--primary) 60%,transparent),transparent 45%,rgba(255,255,255,.08));-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}.stat-box,.soft-card{background:color-mix(in srgb,var(--panel-soft) 76%,transparent);border:1px solid color-mix(in srgb,var(--border) 75%,transparent);border-radius:18px;padding:14px}.stat-label,.soft-label{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-bottom:8px}.single-column{max-width:980px;margin:0 auto;position:relative;z-index:1}.stack{display:grid;gap:14px}.muted{color:var(--muted)}input[type=number]{width:100%;box-sizing:border-box;border-radius:16px;border:1px solid color-mix(in srgb,var(--border) 78%,transparent);background:var(--panel-soft);color:var(--text);padding:14px;font-size:1rem}.file-input{display:none}.dropzone{display:grid;gap:8px;padding:28px;border-radius:22px;border:1px dashed color-mix(in srgb,var(--primary) 50%,var(--border));background:linear-gradient(180deg,color-mix(in srgb,var(--primary) 8%,transparent),transparent),color-mix(in srgb,var(--panel-soft) 78%,transparent);cursor:pointer}.dropzone-title{font-size:1.05rem;font-weight:700}.dropzone-subtitle{color:var(--muted)}.section-head{display:flex;align-items:start;justify-content:space-between;gap:16px;margin-bottom:12px}.section-head h2{margin:0;font-size:1.4rem}.panel-badge{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:color-mix(in srgb,var(--panel-soft) 84%,transparent);border:1px solid color-mix(in srgb,var(--border) 75%,transparent);color:var(--muted);font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.badge-success{color:var(--success);border-color:color-mix(in srgb,var(--success) 35%,transparent)}.config-grid{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:14px;align-items:end}.field span{font-weight:600}.btn-primary,.btn-secondary,.download-card{transition:transform .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease}.btn-primary,.btn-secondary{display:inline-block;text-decoration:none;border:1px solid transparent;border-radius:16px;padding:12px 16px;cursor:pointer;font-weight:600}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-strong));color:#fff;box-shadow:0 12px 30px color-mix(in srgb,var(--primary) 28%,transparent)}.btn-primary:hover{transform:translateY(-1px)}.btn-large{min-height:54px;font-size:1rem}.btn-secondary{background:color-mix(in srgb,var(--panel-soft) 82%,transparent);color:var(--text);border-color:color-mix(in srgb,var(--border) 75%,transparent)}.btn-secondary:hover,.download-card:hover{transform:translateY(-1px);border-color:color-mix(in srgb,var(--primary) 48%,var(--border))}.error{color:var(--danger)}.stats-grid,.download-grid{display:grid;gap:12px}.stats-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.feedback-block{padding-top:6px}.feedback-block h3{margin:0 0 10px}.feedback-list{margin:0;padding-left:18px;display:grid;gap:8px}.action-row{display:flex;justify-content:flex-end;padding-top:4px}.guess-grid{display:flex;flex-wrap:wrap;gap:8px}.guess-chip{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:color-mix(in srgb,var(--primary) 12%,var(--panel-soft));border:1px solid color-mix(in srgb,var(--primary) 28%,var(--border));font-size:.92rem}.download-card{display:grid;gap:6px;text-decoration:none;color:var(--text);padding:18px;border-radius:20px;background:color-mix(in srgb,var(--panel-soft) 82%,transparent);border:1px solid color-mix(in srgb,var(--border) 74%,transparent)}.download-card strong{font-size:1rem}@media (max-width: 780px){.app{padding:18px}.topbar,.section-head,.config-grid{grid-template-columns:1fr;display:grid}.brand{align-items:start}.brand-logo{width:180px}.stats-grid{grid-template-columns:1fr 1fr}}@media (max-width: 560px){.stats-grid{grid-template-columns:1fr}.action-row{justify-content:stretch}}