.app-container{max-width:960px;margin:0 auto;padding:2.5rem 1.5rem}.app-header{text-align:center;margin-bottom:2.5rem}.brand-badge{display:inline-flex;align-items:center;gap:.5rem;background:#3b82f626;color:#60a5fa;border:1px solid rgba(59,130,246,.3);padding:.35rem .85rem;border-radius:9999px;font-size:.825rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;margin-bottom:1rem}.app-title{font-size:2.25rem;font-weight:700;letter-spacing:-.025em;background:linear-gradient(to right,#fff,#93c5fd);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.75rem}.app-subtitle{color:var(--text-secondary);font-size:1.05rem;max-width:600px;margin:0 auto}.validator-card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:1rem;padding:2rem;box-shadow:var(--card-shadow);margin-bottom:2rem}.form-group{margin-bottom:1.5rem}.form-label{display:flex;justify-content:space-between;align-items:center;font-size:.9rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.form-select,.form-textarea{width:100%;background-color:var(--bg-input);border:1px solid var(--border-color);border-radius:.5rem;color:var(--text-primary);padding:.75rem 1rem;font-size:.95rem;transition:border-color .15s ease,box-shadow .15s ease}.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #3b82f640}.form-textarea{min-height:140px;resize:vertical;line-height:1.6}.text-meta{display:flex;justify-content:space-between;align-items:center;margin-top:.5rem;font-size:.8rem;color:var(--text-muted)}.presets-container{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:1.5rem}.presets-label{font-size:.825rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-right:.25rem}.preset-chip{background-color:#ffffff0d;color:var(--text-secondary);border:1px solid var(--border-color);padding:.35rem .75rem;border-radius:.375rem;font-size:.825rem;cursor:pointer;transition:all .15s ease}.preset-chip:hover{background-color:#ffffff1a;color:var(--text-primary);border-color:#475569}.action-bar{display:flex;gap:1rem;justify-content:flex-end}.btn-secondary{background-color:transparent;color:var(--text-secondary);border:1px solid var(--border-color);padding:.75rem 1.25rem;border-radius:.5rem;font-weight:500;font-size:.95rem;cursor:pointer;transition:all .15s ease}.btn-secondary:hover:not(:disabled){background-color:#ffffff0d;color:var(--text-primary)}.btn-primary{display:inline-flex;align-items:center;gap:.5rem;background-color:var(--accent);color:#fff;border:none;padding:.75rem 1.75rem;border-radius:.5rem;font-weight:600;font-size:.95rem;cursor:pointer;transition:background-color .15s ease,transform .05s ease}.btn-primary:hover:not(:disabled){background-color:var(--accent-hover)}.btn-primary:active:not(:disabled){transform:translateY(1px)}.btn-primary:disabled,.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.result-card{border-radius:1rem;padding:1.75rem;margin-bottom:2rem;border:1px solid;animation:fadeIn .3s ease-in-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.result-card.valid{background-color:var(--success-bg);border-color:var(--success-border)}.result-card.invalid{background-color:var(--error-bg);border-color:var(--error-border)}.result-header{display:flex;align-items:center;gap:1rem;margin-bottom:.75rem}.result-icon{font-size:2rem;line-height:1}.result-title{font-size:1.35rem;font-weight:700}.result-card.valid .result-title{color:var(--success)}.result-card.invalid .result-title{color:var(--error)}.result-desc{color:var(--text-primary);font-size:.95rem;margin-bottom:1.25rem}.result-details{background-color:#0f172a99;border-radius:.5rem;padding:1rem;font-family:monospace;font-size:.85rem;display:flex;flex-direction:column;gap:.4rem}.detail-row{display:flex;justify-content:space-between}.detail-label{color:var(--text-muted)}.detail-val{color:var(--text-primary);font-weight:600}.error-alert{background-color:var(--error-bg);border:1px solid var(--error-border);color:#fca5a5;padding:1rem 1.25rem;border-radius:.5rem;margin-bottom:1.5rem;display:flex;align-items:center;gap:.75rem;font-size:.9rem}.app-footer{text-align:center;padding-top:1rem;border-top:1px solid var(--border-color);color:var(--text-muted);font-size:.825rem}.arch-tags{display:flex;justify-content:center;flex-wrap:wrap;gap:.75rem;margin-top:.75rem}.arch-tag{background-color:#ffffff0d;border:1px solid var(--border-color);padding:.25rem .6rem;border-radius:.25rem;font-family:monospace;font-size:.75rem;color:var(--text-secondary)}.spinner{width:1rem;height:1rem;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-card: #1e293b;--bg-input: #0f172a;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--accent: #3b82f6;--accent-hover: #2563eb;--border-color: #334155;--success: #10b981;--success-bg: rgba(16, 185, 129, .15);--success-border: #059669;--error: #ef4444;--error-bg: rgba(239, 68, 68, .15);--error-border: #dc2626;--card-shadow: 0 10px 25px -5px rgba(0, 0, 0, .4), 0 8px 10px -6px rgba(0, 0, 0, .4)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased}button,input,select,textarea{font-family:inherit}