:root{--deep-dark:#0a0e27;--card-bg:#1a1f3a;--border-glow:#2d3454;--matrix-green:#00aa44;--security-blue:#0066cc;--text-primary:#e5e7eb;--text-secondary:#94a3b8;--text-muted:#64748b}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'JetBrains Mono',monospace;background:var(--deep-dark);color:var(--text-primary);min-height:100vh;line-height:1.6}.matrix-rain{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;opacity:.03}.container{max-width:1200px;margin:0 auto;padding:2rem}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border-glow);flex-wrap:wrap;gap:1rem}.logo{display:flex;align-items:center;gap:1rem}.logo-icon{font-size:2.5rem;animation:pulse 2s infinite}@keyframes pulse{0%,100%{opacity:1}50%{opacity:.7}}.status-bar{display:flex;align-items:center;gap:1rem}.status-indicator{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-secondary)}.status-dot{width:8px;height:8px;background:var(--matrix-green);border-radius:50%;animation:blink 1s infinite}@keyframes blink{0%,100%{opacity:1}50%{opacity:.5}}.version-badge{background:rgba(0,170,68,.2);color:var(--matrix-green);padding:.25rem .75rem;border-radius:20px;font-size:.75rem;font-weight:600}.main-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem}@media(max-width:900px){.main-grid{grid-template-columns:1fr}}.card{background:var(--card-bg);border:1px solid var(--border-glow);border-radius:16px;padding:1.5rem;transition:border-color .3s}.card:hover{border-color:rgba(0,170,68,.3)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border-glow)}.card-title{display:flex;align-items:center;gap:.5rem;font-size:1.1rem;font-weight:600}.card-icon{font-size:1.25rem}.form-group{margin-bottom:1rem}.form-label{display:block;margin-bottom:.5rem;font-size:.85rem;color:var(--text-secondary);font-weight:500}.form-input,.form-select{width:100%;padding:.75rem 1rem;background:rgba(0,0,0,.3);border:1px solid var(--border-glow);border-radius:8px;color:var(--text-primary);font-family:inherit;font-size:.9rem;transition:border-color .3s}.form-input:focus,.form-select:focus{outline:none;border-color:var(--matrix-green);box-shadow:0 0 0 3px rgba(0,170,68,.1)}.form-input::placeholder{color:var(--text-muted)}.form-select{cursor:pointer}.form-select option{background:var(--card-bg)}.btn-group{display:flex;gap:.75rem;flex-wrap:wrap}.btn{padding:.75rem 1.5rem;border:1px solid var(--border-glow);border-radius:8px;font-family:inherit;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;flex:1;min-width:120px}.btn-primary{background:linear-gradient(135deg,var(--security-blue),var(--matrix-green));color:#fff;border:none}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 20px rgba(0,170,68,.3)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:rgba(0,170,68,.1);color:var(--matrix-green);border-color:rgba(0,170,68,.3)}.btn-secondary:hover{background:rgba(0,170,68,.2);border-color:var(--matrix-green)}.security-level{margin-top:1.5rem;padding:1rem;background:rgba(0,0,0,.2);border-radius:8px}.security-level-label{display:flex;justify-content:space-between;margin-bottom:.5rem;font-size:.85rem;color:var(--text-secondary)}.security-progress{height:8px;background:rgba(0,0,0,.3);border-radius:4px;overflow:hidden}.security-progress-bar{height:100%;background:linear-gradient(90deg,var(--security-blue),var(--matrix-green));border-radius:4px;transition:width .3s}.security-features{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem;margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border-glow)}.security-feature{display:flex;align-items:center;gap:.5rem;font-size:.8rem;color:var(--text-secondary)}.security-feature-icon{color:var(--matrix-green);font-weight:700}.preview-card{background:rgba(0,0,0,.2);border:2px dashed var(--border-glow);border-radius:12px;padding:2rem;text-align:center;min-height:200px;display:flex;align-items:center;justify-content:center}.preview-placeholder{color:var(--text-muted)}.preview-placeholder-icon{font-size:3rem;margin-bottom:1rem;opacity:.5}.verification-code{background:rgba(0,170,68,.05);border:1px solid rgba(0,170,68,.2);border-radius:8px;padding:1rem;text-align:center;margin-top:1.5rem}.verification-code-label{font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:1px;margin-bottom:.5rem}.verification-code-value{font-size:1.75rem;font-weight:700;color:var(--matrix-green);letter-spacing:4px}.integrity-bar{background:rgba(0,0,0,.2);border-radius:8px;padding:1rem;margin-top:1rem}.integrity-bar-label{display:flex;justify-content:space-between;margin-bottom:.5rem;font-size:.85rem;color:var(--text-secondary)}.integrity-bar-visual{color:var(--matrix-green);font-size:.9rem;letter-spacing:1px}.footer{text-align:center;margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border-glow);color:var(--text-secondary);font-size:.85rem}@media(max-width:600px){.container{padding:1rem}.header{flex-direction:column;text-align:center}.logo{flex-direction:column}.btn-group{flex-direction:column}.btn{width:100%}.security-features{grid-template-columns:1fr}}