:root{--bg: #0d0f1a;--bg-elevated: #12152a;--surface: #161929;--surface-raised:#1d2035;--border: #252840;--border-bright:#323660;--teal: #3c69b2;--teal-dim: #3c69b2;--teal-glow: rgba(0,212,170,.1);--text: #e8eaf6;--text-muted: #6b7094;--text-dim: #353853;--error: #ff5c6e;--error-bg: rgba(255,92,110,.06);--font-display: "Instrument Serif", Georgia, serif;--font-ui: "IBM Plex Mono", "Courier New", monospace;--transition: .18s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font-ui);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}.page{position:relative;min-height:100%;display:flex;flex-direction:column}.bg-grid{position:fixed;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:48px 48px;opacity:.25;pointer-events:none;z-index:0}.container{position:relative;z-index:1;width:100%;max-width:680px;margin:0 auto;padding:0 24px;display:flex;flex-direction:column;flex:1}.header{padding:56px 0 44px;border-bottom:1px solid var(--border);margin-bottom:48px;animation:fadeUp .5s ease both}.header__badge{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px}.header__dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--teal);animation:pulse 3s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;box-shadow:0 0 0 0 var(--teal-glow)}50%{opacity:.4}}.header__label{font-size:10px;font-weight:500;letter-spacing:.28em;color:var(--teal);text-transform:uppercase}.header__title{font-family:var(--font-display);font-size:clamp(30px,5.5vw,50px);font-weight:400;line-height:1.08;letter-spacing:-.015em;color:var(--text)}.header__title 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var(--border);padding:14px 40px;display:flex;align-items:center;justify-content:center;gap:12px}.dropzone__or{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim)}.card{border:1px solid var(--border-bright);background:var(--surface);animation:fadeUp .35s ease both}.card--progress{padding:44px 40px}.progress__filename{font-family:var(--font-display);font-size:18px;color:var(--text);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.progress__status{font-size:11px;color:var(--text-muted);letter-spacing:.04em;margin-bottom:28px}.progress__track{height:1px;background:var(--border);overflow:hidden;margin-bottom:10px}.progress__fill{height:100%;background:var(--teal);box-shadow:0 0 10px #00d4aab3;transition:width .3s ease}.progress__pct{font-size:11px;color:var(--teal);text-align:right}.card--error{padding:20px 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var(--border-bright);flex-shrink:0}.btn--ghost:hover{color:var(--text);border-color:var(--text-muted)}.btn--reset{display:block;width:100%;padding:14px;background:transparent;color:var(--text-muted);text-align:center}.btn--reset:hover{color:var(--text);background:#00d4aa0a}.footer{padding:28px 0 40px;margin-top:48px;border-top:1px solid var(--border);display:flex;justify-content:space-between;font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-dim)}@keyframes fadeUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 520px){.container{padding:0 16px}.header{padding:40px 0 32px;margin-bottom:36px}.header__title{font-size:28px}.dropzone__body{padding:48px 20px 32px}.dropzone__footer{padding:14px 20px}.card--progress{padding:36px 24px}.footer{flex-direction:column;gap:8px;text-align:center}}.progress__steps{display:flex;flex-direction:column;gap:10px;margin-bottom:28px}.pstep{display:flex;align-items:center;gap:12px;opacity:.3;transition:opacity .3s ease}.pstep--active{opacity:1}.pstep--done{opacity:.55}.pstep__dot{display:flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;border:1px solid var(--border-bright);font-size:9px;font-weight:600;color:var(--text-muted);flex-shrink:0;transition:background .3s,border-color .3s,color .3s}.pstep--active .pstep__dot{border-color:var(--teal);color:var(--teal);background:var(--teal-glow);animation:pulse 1.5s ease-in-out infinite}.pstep--done .pstep__dot{border-color:var(--teal-dim);background:var(--teal-dim);color:#000;font-size:10px}.pstep__label{font-size:11px;letter-spacing:.04em;color:var(--text-muted);transition:color .3s}.pstep--active .pstep__label{color:var(--text)}.pstep--done 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