:root{--bg: #1e1e2e;--surface: #252538;--surface-hover: #2e2e44;--border: #313244;--text: #cdd6f4;--text-muted: #a6adc8;--accent: #89b4fa;--accent-hover: #b4befe;--green: #a6e3a1;--red: #f38ba8;--yellow: #f9e2af;--font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--mono: "JetBrains Mono", ui-monospace, Menlo, Monaco, Consolas, monospace}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh;display:flex;flex-direction:column}header{padding:2.5rem 1.5rem 1.5rem;text-align:center;border-bottom:1px solid var(--border)}.logo-badge{display:inline-flex;align-items:center;gap:.5rem;background:#89b4fa1f;color:var(--accent);padding:.25rem .75rem;border-radius:9999px;font-size:.8rem;font-weight:600;margin-bottom:.75rem}h1{font-size:2rem;font-weight:700;letter-spacing:-.02em;margin-bottom:.5rem}.subtitle{color:var(--text-muted);max-width:600px;margin:0 auto;font-size:1rem}main{flex:1;max-width:900px;width:100%;margin:0 auto;padding:2rem 1.5rem}.dropzone{border:2px dashed var(--border);background:var(--surface);border-radius:1rem;padding:3rem 2rem;text-align:center;cursor:pointer;transition:all .2s ease;position:relative}.dropzone:hover,.dropzone.dragover{border-color:var(--accent);background:var(--surface-hover);transform:translateY(-2px)}.drop-icon{font-size:3rem;margin-bottom:1rem}.drop-title{font-size:1.15rem;font-weight:600;margin-bottom:.5rem}.drop-desc{color:var(--text-muted);font-size:.9rem}#file-input{display:none}.result-container{margin-top:2rem;display:none}.result-card{background:var(--surface);border:1px solid var(--border);border-radius:1rem;overflow:hidden}.result-header{padding:1.25rem 1.5rem;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border)}.status-badge{font-size:.85rem;font-weight:700;padding:.35rem .85rem;border-radius:9999px;letter-spacing:.05em;text-transform:uppercase}.status-badge.signed{background:#a6e3a133;color:var(--green);border:1px solid rgba(166,227,161,.4)}.status-badge.unsigned{background:#f9e2af33;color:var(--yellow);border:1px solid rgba(249,226,175,.4)}.status-badge.invalid{background:#f38ba833;color:var(--red);border:1px solid rgba(243,139,168,.4)}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;padding:1.25rem 1.5rem;border-bottom:1px solid var(--border);background:#00000026}.metric-item{display:flex;flex-direction:column}.metric-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}.metric-value{font-size:.95rem;font-weight:600;margin-top:.2rem;font-family:var(--mono)}.details-section{padding:1.5rem}.section-title{font-size:1rem;font-weight:600;margin-bottom:1rem;color:var(--accent)}.assertion-list{display:flex;flex-direction:column;gap:.75rem}.assertion-card{background:#ffffff08;border:1px solid var(--border);border-radius:.5rem;padding:.75rem 1rem}.assertion-kind{display:inline-block;font-size:.75rem;font-weight:600;color:var(--accent);background:#89b4fa26;padding:.15rem .5rem;border-radius:4px;margin-bottom:.35rem}.assertion-label{font-weight:600;font-size:.9rem}.assertion-summary{font-size:.85rem;color:var(--text-muted);margin-top:.25rem}.raw-json-viewer{margin-top:1.5rem;background:#11111b;border:1px solid var(--border);border-radius:.5rem;padding:1rem;font-family:var(--mono);font-size:.8rem;overflow-x:auto;max-height:300px}footer{padding:1.5rem;text-align:center;font-size:.85rem;color:var(--text-muted);border-top:1px solid var(--border)}footer a{color:var(--accent);text-decoration:none}footer a:hover{text-decoration:underline}