.app{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem 1.5rem}.hero-bg{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0}.hero-video{width:100%;height:100%;object-fit:cover}.hero-video:not([src]) source[src=""],.hero-video[src=""]{display:none}.hero-bg:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(145deg,#0a0a0af7,#121212f2,#0a0a0afa),radial-gradient(ellipse 80% 50% at 50% -20%,rgba(255,212,0,.08),transparent),radial-gradient(ellipse 60% 40% at 80% 60%,rgba(255,212,0,.04),transparent);z-index:0}.hero-bg:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);background-size:48px 48px;z-index:0;pointer-events:none}.hero-bg .hero-video{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0}.hero-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,#06080bbf,#06080beb);z-index:1;pointer-events:none}.app-inner{position:relative;z-index:2;width:100%;max-width:640px;margin:0 auto}.header{text-align:center;margin-bottom:2.25rem}.hero-title{font-size:clamp(2rem,5vw,3rem);font-weight:800;letter-spacing:-.04em;line-height:1.15;margin:0 0 .75rem;color:var(--text);text-shadow:0 0 60px rgba(0,0,0,.4)}.hero-accent{color:var(--accent);position:relative;text-shadow:0 0 40px var(--accent-glow)}.tagline{color:var(--text-muted);font-size:1.05rem;line-height:1.6;max-width:440px;margin:0 auto}.process-steps{display:flex;justify-content:center;align-items:center;gap:0;margin-bottom:1.75rem;flex-wrap:wrap}.process-step-wrap{display:flex;align-items:center;gap:0}.process-step-connector{width:20px;height:1px;background:linear-gradient(90deg,var(--glass-border),transparent);margin:0 2px;flex-shrink:0;transition:background .3s ease}.process-step-wrap:has(.process-step--done)+.process-step-wrap .process-step-connector{background:linear-gradient(90deg,rgba(255,212,0,.5),transparent)}.process-step{display:flex;align-items:center;gap:.5rem;padding:.6rem 1rem;border-radius:var(--radius-sm);border:1px solid var(--glass-border);background:var(--glass);transition:background .25s ease,border-color .25s ease,box-shadow .25s ease,transform .2s ease}.process-step--active{background:#ffd40014;border-color:#ffd40059;box-shadow:0 0 24px var(--accent-glow);transform:scale(1.02)}.process-step--done{opacity:.85}.process-step--done .process-step__number{color:var(--accent)}.process-step__number{font-size:1.125rem;font-weight:800;color:var(--text-muted);letter-spacing:-.02em;transition:color .25s ease}.process-step--active .process-step__number{color:var(--accent)}.process-step__label{font-size:.9rem;font-weight:500;color:var(--text-muted);transition:color .25s ease}.process-step--active .process-step__label{color:var(--text)}.process-step__dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:step-pulse 1.5s ease-in-out infinite}@keyframes step-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.15)}}.main{display:flex;flex-direction:column;gap:1.25rem;animation:content-in .4s ease-out}@keyframes content-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.card{background:var(--surface);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.75rem;box-shadow:var(--shadow-lg)}.card-loading-spinner{text-align:center;padding:3rem}.card-title{font-weight:600;font-size:1rem;margin:0 0 1rem;color:var(--text)}.upload-zone{padding:2.5rem}.drop-label{display:flex;align-items:center;justify-content:center;min-height:160px;cursor:pointer;border:2px dashed var(--border);border-radius:var(--radius);transition:border-color .2s,background .2s,box-shadow .2s}.drop-label:hover{border-color:var(--accent);background:var(--glass);box-shadow:0 0 0 1px #ffd40040}.file-input{position:absolute;width:0;height:0;opacity:0;pointer-events:none}.drop-text{color:var(--text-muted);font-size:1rem}.column-picker{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1.25rem}.radio-label{display:flex;align-items:center;gap:.75rem;cursor:pointer;padding:.6rem 0;border-radius:var(--radius-sm);transition:background .15s}.radio-label:hover{background:var(--glass)}.radio-label input{accent-color:var(--accent);width:1.125rem;height:1.125rem}.radio-text{font-family:var(--font-mono);font-size:.9rem;color:var(--text)}.summary-option{display:flex;align-items:center;gap:.75rem;cursor:pointer;padding:.75rem 0;margin-bottom:.5rem;border-radius:var(--radius-sm);transition:background .15s;color:var(--text-muted);font-size:.95rem;line-height:1.4}.summary-option:hover{background:var(--glass);color:var(--text)}.summary-option input{accent-color:var(--accent);width:1.125rem;height:1.125rem;flex-shrink:0}.summary-option strong{color:var(--text)}.actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1rem}.btn{font-family:var(--font-sans);font-size:.95rem;font-weight:600;padding:.7rem 1.25rem;border-radius:var(--radius-sm);border:none;cursor:pointer;transition:background .2s,color .2s,box-shadow .2s}.btn-primary{background:var(--accent);color:#0a0a0a}.btn-primary:hover{background:var(--accent-hover);box-shadow:0 0 24px var(--accent-glow)}.btn-ghost{background:var(--glass);color:var(--text-muted);border:1px solid var(--glass-border)}.btn-ghost:hover{color:var(--text);background:#ffffff14}.progress-block{margin-bottom:.5rem}progress.progress-bar-el{-moz-appearance:none;appearance:none;-webkit-appearance:none;display:block;width:100%;height:12px;margin:0 0 .75rem;border:1px solid var(--glass-border);border-radius:999px;overflow:hidden;background:var(--glass)}progress.progress-bar-el::-webkit-progress-bar{background:var(--glass);border-radius:999px}progress.progress-bar-el::-webkit-progress-value{background:linear-gradient(90deg,var(--accent),var(--accent-hover));border-radius:999px;transition:width .25s ease-out}progress.progress-bar-el::-moz-progress-bar{background:linear-gradient(90deg,var(--accent),var(--accent-hover));border-radius:999px}.processing-text{text-align:center;color:var(--text-muted);margin:0;font-size:.95rem}.success-card,.error-card{text-align:center}.success-text{color:var(--success);margin:0 0 .25rem;font-size:1.05rem}.filename{font-family:var(--font-mono);font-size:.85rem;color:var(--text-muted);margin:0 0 1rem}.hyperlink-notice{font-size:.9rem;color:var(--text-muted);background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius-sm);padding:.75rem 1rem;margin:0 0 1rem;line-height:1.4}.error-text{color:var(--error);margin:0 0 1rem}.header-actions{display:flex;justify-content:flex-end;margin-bottom:.5rem}.btn-sm{font-size:.8rem;padding:.4rem .85rem}.login-card{text-align:center;padding:2.5rem 1.75rem}.login-subtitle{color:var(--text-muted);font-size:.95rem;margin:0 0 1.5rem;line-height:1.5}.login-btn{font-size:1rem;padding:.8rem 2rem}.login-spinner{width:32px;height:32px;margin:0 auto;border:3px solid var(--glass-border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}:root{--bg: #0a0a0a;--bg-elevated: #111111;--surface: rgba(20, 20, 20, .9);--surface-solid: #141414;--border: rgba(255, 255, 255, .1);--text: #f5f5f5;--text-muted: #a3a3a3;--accent: #ffd400;--accent-hover: #ffe033;--accent-glow: rgba(255, 212, 0, .28);--success: #22c55e;--error: #ef4444;--radius: 16px;--radius-sm: 10px;--font-sans: "DM Sans", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, monospace;--shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, .5);--glass: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .08)}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:var(--font-sans);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh}