:root{--primary-color:#0f172a;--primary-hover:#1e293b;--accent-color:#2563eb;--accent-light:#eff6ff;--success-color:#10b981;--success-bg:#ecfdf5;--success-border:#a7f3d0;--error-color:#ef4444;--error-bg:#fef2f2;--error-border:#fecaca;--bg-color:#f8fafc;--card-bg:#fff;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--border-color:#e2e8f0;--border-focus:#3b82f6;--font-sans:"Inter", system-ui, -apple-system, sans-serif;--font-display:"Outfit", var(--font-sans);--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000000d, 0 2px 4px -1px #00000008;--shadow-lg:0 10px 15px -3px #0f172a0d, 0 4px 6px -2px #0f172a05;--shadow-xl:0 20px 25px -5px #0f172a14, 0 10px 10px -5px #0f172a08;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);color:var(--text-primary);background-color:var(--bg-color);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;flex-direction:column;min-height:100vh;line-height:1.5;display:flex}#root{flex-direction:column;flex-grow:1;display:flex}.app-main{flex-direction:column;flex-grow:1;justify-content:center;align-items:center;width:100%;padding:2rem 1rem;display:flex}h1,h2,h3,h4{font-family:var(--font-display);color:var(--primary-color);font-weight:700}.auth-container{justify-content:center;align-items:center;width:100%;max-width:480px;animation:.4s ease-out fadeIn;display:flex}.auth-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-xl);width:100%;box-shadow:var(--shadow-xl);padding:2.5rem 2rem;transition:transform .3s,box-shadow .3s}.brand-header{text-align:center;margin-bottom:2rem}.logo-badge{background-color:var(--accent-light);width:64px;height:64px;color:var(--accent-color);box-shadow:var(--shadow-sm);border-radius:50%;justify-content:center;align-items:center;margin-bottom:1rem;animation:.5s cubic-bezier(.175,.885,.32,1.275) scaleUp;display:inline-flex}.brand-title{letter-spacing:-.025em;margin-bottom:.25rem;font-size:1.8rem;font-weight:800}.brand-subtitle{color:var(--text-secondary);font-size:.95rem}.auth-form{flex-direction:column;gap:1.5rem;display:flex}.form-group{flex-direction:column;gap:.5rem;display:flex}.form-label{color:var(--text-secondary);letter-spacing:-.011em;font-size:.875rem;font-weight:600}.input-wrapper{align-items:center;display:flex;position:relative}.input-icon{color:var(--text-muted);pointer-events:none;transition:color .2s;position:absolute;left:1rem}.form-input{border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;font-family:var(--font-sans);color:var(--text-primary);box-shadow:var(--shadow-sm);background-color:#fff;outline:none;padding:.75rem 1rem .75rem 2.75rem;font-size:.95rem;transition:all .2s}.form-input:focus{border-color:var(--border-focus);box-shadow:0 0 0 4px #3b82f61a}.form-input:focus+.input-icon{color:var(--accent-color)}.input-error{border-color:var(--error-color)!important}.input-error:focus{box-shadow:0 0 0 4px #ef44441a!important}.error-text{color:var(--error-color);margin-top:.15rem;font-size:.8rem;font-weight:500}.submit-button{background-color:var(--primary-color);color:#fff;border-radius:var(--radius-md);cursor:pointer;box-shadow:var(--shadow-md);border:none;justify-content:center;align-items:center;gap:.5rem;margin-top:.5rem;padding:.875rem 1.5rem;font-size:.95rem;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex}.submit-button:hover:not(:disabled){background-color:var(--primary-hover);box-shadow:var(--shadow-lg);transform:translateY(-1px)}.submit-button:active:not(:disabled){transform:translateY(0)}.submit-button:disabled{opacity:.7;cursor:not-allowed}.btn-arrow{transition:transform .2s}.submit-button:hover .btn-arrow{transform:translate(4px)}.spinner-wrapper{align-items:center;gap:.5rem;display:flex}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin}.result-container,.verify-container{justify-content:center;align-items:center;width:100%;max-width:800px;animation:.4s ease-out fadeIn;display:flex}.result-card,.verify-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-xl);width:100%;box-shadow:var(--shadow-xl);padding:2.5rem}.result-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;display:flex}.text-link{color:var(--text-secondary);align-items:center;gap:.4rem;font-size:.9rem;font-weight:500;text-decoration:none;transition:color .2s;display:flex}.text-link:hover{color:var(--accent-color)}.status-indicator{border-radius:var(--radius-sm);align-items:center;gap:.35rem;padding:.35rem .75rem;font-size:.8rem;font-weight:600;display:inline-flex}.status-indicator.valid{background-color:var(--success-bg);color:var(--success-color);border:1px solid var(--success-border)}.certificate-meta{margin-bottom:2.25rem}.cert-title{letter-spacing:-.02em;margin-bottom:.35rem;font-size:1.6rem}.cert-subtitle{color:var(--text-secondary);margin-bottom:1.5rem;font-size:.9rem}.meta-grid{background-color:var(--bg-color);border-radius:var(--radius-lg);border:1px solid var(--border-color);grid-template-columns:repeat(3,1fr);gap:1.5rem;padding:1.25rem;display:grid}.meta-item{flex-direction:column;gap:.25rem;display:flex}.meta-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);font-size:.75rem;font-weight:700}.meta-value{color:var(--text-primary);word-break:break-word;font-size:.95rem;font-weight:600}.meta-value.highlight{color:var(--accent-color);font-weight:700}.certificate-preview-box{background:var(--bg-color);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin-bottom:2rem;overflow:hidden}.iframe-wrapper{width:100%;padding-top:70.7%;position:relative}.preview-iframe{background:#fff;border:none;width:100%;height:100%;position:absolute;top:0;left:0}.preview-fallback{text-align:center;justify-content:center;align-items:center;min-height:300px;padding:4rem 2rem;display:flex}.fallback-inner{max-width:420px}.fallback-icon{color:var(--text-muted);margin-bottom:1rem}.fallback-inner h3{margin-bottom:.5rem;font-size:1.15rem}.fallback-inner p{color:var(--text-secondary);font-size:.875rem}.cert-actions-section{flex-direction:column;align-items:center;gap:1.25rem;display:flex}.cert-id-badge{color:var(--text-secondary);background-color:var(--bg-color);border:1px solid var(--border-color);border-radius:9999px;align-items:center;gap:.4rem;padding:.5rem 1rem;font-size:.85rem;display:inline-flex}.id-label{color:var(--text-muted);font-weight:500}.id-value{font-family:ui-monospace,monospace;font-weight:600}.button-group{justify-content:center;gap:1rem;width:100%;display:flex}.download-btn{background-color:var(--accent-color);color:#fff;border-radius:var(--radius-md);cursor:pointer;box-shadow:var(--shadow-md);border:none;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:.9rem;font-weight:600;transition:all .2s;display:flex}.download-btn:hover{box-shadow:var(--shadow-lg);background-color:#1d4ed8;transform:translateY(-1px)}.verify-link-btn{color:var(--primary-color);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;box-shadow:var(--shadow-sm);background-color:#fff;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:.9rem;font-weight:600;text-decoration:none;transition:all .2s;display:flex}.verify-link-btn:hover{background-color:var(--bg-color);border-color:var(--text-muted)}.verify-card{padding:0;overflow:hidden}.status-banner{color:#fff;align-items:center;gap:1.25rem;padding:2.25rem 2.5rem;display:flex}.status-banner.valid{background:linear-gradient(135deg,#10b981 0%,#059669 100%)}.status-banner.revoked{background:linear-gradient(135deg,#ef4444 0%,#dc2626 100%)}.status-banner-icon{flex-shrink:0}.status-banner-text h2{color:#fff;margin-bottom:.15rem;font-size:1.4rem}.status-banner-text p{color:#ffffffe6;font-size:.9rem}.verify-content{padding:2.5rem}.verify-header{border-bottom:1px solid var(--border-color);margin-bottom:1.75rem;padding-bottom:.75rem}.verify-title{margin-bottom:.25rem;font-size:1.3rem}.verify-id-label{color:var(--text-muted);font-family:ui-monospace,monospace;font-size:.85rem}.verify-details-list{flex-direction:column;gap:1.25rem;margin-bottom:2.25rem;display:flex}.detail-row{align-items:flex-start;gap:1rem;display:flex}.detail-icon-wrapper{background-color:var(--bg-color);border:1px solid var(--border-color);width:40px;height:40px;color:var(--text-secondary);border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;display:flex}.detail-info{flex-direction:column;justify-content:center;height:40px;display:flex}.detail-label{color:var(--text-muted);font-size:.75rem;font-weight:500;line-height:1.2}.detail-value{color:var(--text-primary);font-size:.925rem;font-weight:600;line-height:1.4}.detail-value.text-bold{color:var(--accent-color);font-size:1.05rem}.status-badge{border-radius:9999px;align-items:center;width:fit-content;padding:.15rem .6rem;font-size:.75rem;font-weight:700;display:inline-flex}.status-badge.valid{background-color:var(--success-bg);color:var(--success-color);border:1px solid var(--success-border)}.status-badge.revoked{background-color:var(--error-bg);color:var(--error-color);border:1px solid var(--error-border)}.verify-actions{display:flex}.btn-full{justify-content:center;width:100%}.error-card{text-align:center;padding:3rem 2rem}.error-icon-wrapper{background-color:var(--error-bg);width:80px;height:80px;color:var(--error-color);border-radius:50%;justify-content:center;align-items:center;margin-bottom:1.5rem;display:inline-flex}.error-title{margin-bottom:.5rem;font-size:1.5rem}.error-description{color:var(--text-secondary);max-width:440px;margin:0 auto 2rem;font-size:.95rem}.error-actions{justify-content:center;display:flex}.back-button{color:var(--primary-color);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;box-shadow:var(--shadow-sm);background-color:#fff;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:.9rem;font-weight:600;text-decoration:none;transition:all .2s;display:flex}.back-button:hover{background-color:var(--bg-color);border-color:var(--text-muted)}.skeleton-card{position:relative;overflow:hidden}.skeleton-line{background-color:var(--border-color);background:linear-gradient(90deg,#f1f5f9 25%,#e2e8f0 50%,#f1f5f9 75%) 0 0/200% 100%;border-radius:4px;margin-bottom:1rem;animation:1.5s linear infinite shimmer}.skeleton-line.title{width:50%;height:24px;margin-bottom:.75rem}.skeleton-line.subtitle{width:30%;height:16px;margin-bottom:2rem}.skeleton-grid{grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-bottom:2rem;display:grid}.skeleton-item{background-color:var(--border-color);border-radius:var(--radius-md);background:linear-gradient(90deg,#f1f5f9 25%,#e2e8f0 50%,#f1f5f9 75%) 0 0/200% 100%;height:56px;animation:1.5s linear infinite shimmer}.skeleton-preview{background-color:var(--border-color);border-radius:var(--radius-lg);background:linear-gradient(90deg,#f1f5f9 25%,#e2e8f0 50%,#f1f5f9 75%) 0 0/200% 100%;height:280px;margin-bottom:2rem;animation:1.5s linear infinite shimmer}.skeleton-button{background-color:var(--border-color);border-radius:var(--radius-md);background:linear-gradient(90deg,#f1f5f9 25%,#e2e8f0 50%,#f1f5f9 75%) 0 0/200% 100%;width:180px;height:44px;margin:0 auto;animation:1.5s linear infinite shimmer}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleUp{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media (width<=768px){.app-main{padding:1rem .75rem}.result-card,.verify-card,.auth-card{padding:1.75rem 1.25rem}.meta-grid{grid-template-columns:1fr;gap:1rem;padding:1rem}.button-group{flex-direction:column;width:100%}.download-btn,.verify-link-btn{justify-content:center;width:100%}.result-header{flex-direction:column;align-items:flex-start;gap:1rem;margin-bottom:1.5rem}.status-indicator{width:fit-content}.status-banner{flex-direction:column;align-items:flex-start;gap:.75rem;padding:1.5rem 1.25rem}.status-banner-text h2{font-size:1.2rem}.verify-content{padding:1.5rem 1.25rem}.skeleton-grid{grid-template-columns:1fr;gap:1rem}.skeleton-preview{height:200px}}