.tool-header{text-align:center;margin-bottom:40px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #059669, #047857);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #059669);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.stats-cards{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.stat-card{background:white;border-radius:60px;padding:16px 28px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200)}.stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #d1fae5, #a7f3d0);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#059669;font-size:1.3rem}.stat-info{text-align:left}.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.7rem;color:var(--gray-500)}.jwt-input-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:24px;padding:20px;margin-bottom:24px;border:1px solid var(--gray-200);box-shadow:0 8px 25px rgba(0,0,0,0.05)}.input-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:12px}.input-header span{font-weight:600;color:var(--gray-700)}.input-actions{display:flex;gap:8px}.action-btn-sm{background:transparent;border:1px solid var(--gray-200);padding:6px 12px;border-radius:30px;cursor:pointer;font-size:0.7rem;transition:all 0.2s}.action-btn-sm:hover{background:#059669;border-color:#059669;color:white}.jwt-textarea{width:100%;min-height:120px;padding:16px;font-family:'Fira Code',monospace;font-size:0.75rem;line-height:1.5;border:1px solid var(--gray-200);border-radius:16px;resize:vertical;background:#1a1a2e;color:#e0e0e0}.jwt-textarea:focus{outline:none;border-color:#059669}.parse-btn{width:100%;background:linear-gradient(135deg, #059669, #047857);border:none;padding:14px;border-radius:50px;color:white;font-weight:600;margin-top:16px;cursor:pointer;transition:all 0.3s}.parse-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(5,150,105,0.3)}.jwt-structure{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap;padding:16px;background:linear-gradient(135deg, #f8fafc, #f1f5f9);border-radius:60px}.structure-part{padding:8px 20px;border-radius:40px;text-align:center}.header-part{background:#dbeafe;color:#1e40af}.payload-part{background:#d1fae5;color:#065f46}.signature-part{background:#fef3c7;color:#92400e}.part-label{font-weight:700;font-size:0.85rem;display:block}.part-badge{font-size:0.6rem;opacity:0.8}.structure-arrow{color:var(--gray-400);font-size:1rem}.jwt-panels{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;margin-bottom:24px}.jwt-panel{background:white;border-radius:20px;overflow:hidden;border:1px solid var(--gray-200)}.panel-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200);font-weight:600;font-size:0.85rem}.copy-panel{background:transparent;border:none;cursor:pointer;color:var(--gray-500);padding:4px 8px;border-radius:20px}.copy-panel:hover{background:var(--gray-100);color:#059669}.json-viewer{padding:16px;font-family:'Fira Code',monospace;font-size:0.7rem;line-height:1.5;background:#1a1a2e;color:#e0e0e0;margin:0;overflow-x:auto;max-height:250px}.signature-viewer{padding:16px;font-family:'Fira Code',monospace;font-size:0.7rem;word-break:break-all;background:#1a1a2e;color:#fbbf24;min-height:100px}.detail-info{background:var(--gray-50);border-radius:20px;padding:16px;margin-bottom:24px}.detail-header{display:flex;align-items:center;gap:8px;margin-bottom:16px;font-weight:600;color:var(--gray-700)}.detail-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:12px}.detail-item{display:flex;flex-direction:column;gap:4px;padding:10px;background:white;border-radius:12px}.detail-label{font-size:0.65rem;color:var(--gray-500)}.detail-value{font-size:0.8rem;font-weight:500;color:var(--gray-800);word-break:break-all}.validation-status{padding:16px;border-radius:16px;margin-bottom:24px;text-align:center}.validation-status.valid{background:#d1fae5;color:#065f46;border:1px solid #a7f3d0}.validation-status.invalid{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}.validation-status.warning{background:#fef3c7;color:#92400e;border:1px solid #fde68a}.jwt-knowledge{margin-top:24px;background:linear-gradient(135deg, #f0fdf4, #dcfce7);border-radius:24px;padding:20px}.knowledge-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:600;color:var(--gray-700)}.knowledge-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px}.knowledge-card{background:white;border-radius:16px;padding:16px;text-align:center;transition:all 0.3s}.knowledge-card:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(0,0,0,0.08)}.knowledge-card i{font-size:1.5rem;color:#059669;margin-bottom:10px}.knowledge-card h4{font-size:0.85rem;margin-bottom:6px}.knowledge-card p{font-size:0.7rem;color:var(--gray-500)}@media (max-width:900px){.jwt-panels{grid-template-columns:1fr}.detail-grid{grid-template-columns:repeat(2, 1fr)}.knowledge-grid{grid-template-columns:repeat(2, 1fr)}.jwt-structure{flex-direction:column;border-radius:30px}.structure-arrow{transform:rotate(90deg)}}@media (max-width:480px){.stats-cards{gap:12px}.stat-card{padding:12px 20px}.stat-value{font-size:1.2rem}.detail-grid{grid-template-columns:1fr}.knowledge-grid{grid-template-columns:1fr}.input-header{flex-direction:column;align-items:flex-start}}