:root{--primary:#171717;--secondary:#404040;--accent:#d4af37;--accent-hover:#b8972e;--bg:#fff;--surface:#fafafa;--text-main:#171717;--text-muted:#6b7280;--border:#e5e7eb;--error:#ef4444;--success:#10b981;--radius:8px;--transition:all .2s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg);color:var(--text-main);-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}#app{flex-direction:column;min-height:100vh;display:flex}.app-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:1.5rem 2rem;display:flex}.logo{letter-spacing:-.025em;color:var(--primary);font-size:1.25rem;font-weight:700}.main-content{flex-direction:column;flex:1;justify-content:center;align-items:center;width:100%;max-width:600px;margin:0 auto;padding:2rem;display:flex}#view-container{width:100%;max-width:480px;animation:.4s ease-out fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.hero-section,.verify-section,.dashboard-section,.admin-section{width:100%}.dashboard-section{max-width:600px}h1{letter-spacing:-.025em;text-align:center;margin-bottom:.5rem;font-size:2.25rem;font-weight:700}.subtitle{color:var(--text-muted);text-align:center;margin-bottom:2.5rem;font-size:1.125rem}.auth-form{background-color:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:2.5rem;box-shadow:0 4px 6px -1px #0000000d}.input-group{margin-bottom:1.5rem}label{color:var(--secondary);margin-bottom:.5rem;font-size:.875rem;font-weight:500;display:block}input[type=text],select{border:1px solid var(--border);border-radius:var(--radius);width:100%;transition:var(--transition);background-color:var(--bg);padding:.75rem 1rem;font-family:inherit;font-size:1rem}input[type=text]:focus,select:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px #d4af3733}button{cursor:pointer;transition:var(--transition);border:none;font-family:inherit}button:active{transform:scale(.98)}.btn-primary{background-color:var(--primary);color:#fff;border-radius:var(--radius);justify-content:center;align-items:center;width:100%;padding:.875rem 1.5rem;font-size:1rem;font-weight:500;display:flex;position:relative}.btn-primary:hover{background-color:var(--secondary)}.btn-ghost{color:var(--text-muted);border-radius:var(--radius);background:0 0;padding:.5rem 1rem;font-weight:500}.btn-ghost:hover{background-color:var(--surface);color:var(--primary)}.btn-home-verify{width:100%;margin-top:12px}.btn-back{margin-bottom:1.5rem;padding-left:0}.btn-back:hover{color:var(--primary);background:0 0}.error-msg{color:var(--error);text-align:center;margin-top:1rem;font-size:.875rem;font-weight:500}.hidden{display:none!important}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:.8s linear infinite spin;position:absolute}@keyframes spin{to{transform:rotate(360deg)}}.btn-primary.loading .btn-text{opacity:0}.btn-primary.loading .spinner{display:block}.dashboard-header{border-bottom:1px solid var(--border);margin-bottom:2rem;padding-bottom:1.5rem}.dashboard-header h2{margin-bottom:.25rem;font-size:1.5rem}.dashboard-header p{color:var(--text-muted)}.certificates-grid{gap:1rem;display:grid}.cert-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);transition:var(--transition);justify-content:space-between;align-items:center;padding:1.5rem;display:flex}.cert-card:hover{border-color:var(--accent);box-shadow:0 4px 12px #0000000d}.cert-info h3{margin-bottom:.25rem;font-size:1.125rem}.cert-info p{color:var(--text-muted);font-size:.875rem}.btn-download{background-color:var(--accent);color:#fff;border-radius:var(--radius);padding:.5rem 1rem;font-weight:500}.btn-download:hover{background-color:var(--accent-hover)}.verify-result{border-radius:var(--radius);text-align:center;margin-top:2rem;padding:1.5rem}.verify-result.valid{border:1px solid var(--success);background-color:#10b9811a}.verify-result.valid h3{color:var(--success);margin-bottom:1rem}.verify-result.revoked{border:1px solid var(--error);background-color:#ef444414}.verify-result.revoked h3{color:var(--error);margin-bottom:1rem}.verify-result.not-found{border:1px solid var(--text-muted);background-color:#6b72801a}.verify-result.not-found h3{color:var(--secondary);margin-bottom:1rem}.verify-result .detail-row{border-bottom:1px solid #0000000d;justify-content:space-between;padding:.5rem 0;display:flex}.verify-result .detail-row:last-child{border-bottom:none}.verify-result .label{color:var(--text-muted);font-size:.875rem}.verify-result .value{font-size:.875rem;font-weight:500}.verify-result .value.value-mono-small{font-family:monospace;font-size:12px}.verify-mode-tabs{gap:10px;margin-bottom:20px;display:flex}.verify-mode-tabs button{flex:1}.qr-reader{background:#000;border-radius:8px;width:100%;max-width:400px;margin:0 auto;overflow:hidden}.verify-hint{text-align:center;color:var(--text-muted);margin-top:12px;font-size:.9rem}.app-footer{text-align:center;color:var(--text-muted);padding:2rem;font-size:.875rem}