:root{--tool-container-max-width:1100px}.panel-shell{border:1px solid var(--light-gray);border-radius:var(--border-radius);padding:22px;background:linear-gradient(180deg,rgba(248,249,250,.9) 0,#fff 100%);text-align:left;box-shadow:0 4px 15px rgba(0,0,0,.04)}.current-time-panel{margin-bottom:24px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}.section-heading h2{margin:0;color:var(--primary);font-size:1.2rem;display:flex;align-items:center;gap:10px}.timezone-badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-size:.85em;color:var(--info);background:rgba(17,138,178,.1);border:1px solid rgba(17,138,178,.16)}.converter-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.value-card{background:#fff;border:1px solid var(--light-gray);border-radius:12px;padding:16px;transition:var(--transition);min-height:120px}.value-card:hover{border-color:rgba(67,97,238,.35);box-shadow:0 8px 20px rgba(67,97,238,.08);transform:translateY(-2px)}.value-card.wide{grid-column:span 2}.value-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:12px}.value-label{color:var(--gray);font-size:.9em;font-weight:600}.value-text{color:var(--dark);font-size:1rem;font-weight:600;line-height:1.6;word-break:break-word}.value-text.mono{font-family:Consolas,Monaco,monospace}.value-note{margin-top:10px;color:var(--gray);font-size:.82em;line-height:1.5}.copy-btn{width:32px;height:32px;border:1px solid var(--light-gray);border-radius:8px;background:#fff;color:var(--info);cursor:pointer;transition:var(--transition);flex-shrink:0}.copy-btn:hover{background:var(--info);color:#fff;border-color:var(--info)}.field-label{display:inline-block;margin-bottom:8px;color:var(--gray);font-size:.92em;font-weight:600}.dual-input-row,.input-row{display:flex;gap:12px}.input-row{align-items:stretch}.dual-input-row{align-items:flex-end}.field-block{flex:1}.field-block-small{max-width:140px}input[type=datetime-local],input[type=number],input[type=text]{width:100%;padding:12px 14px;border:1px solid var(--light-gray);border-radius:10px;background:#fff;color:var(--dark);font-size:15px;transition:var(--transition)}.input-row>input[type=text]{flex:1;min-width:0}input[type=number],input[type=text]{font-family:Consolas,Monaco,monospace}input[type=number]{text-align:center}input:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(67,97,238,.14)}.mode-selector{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.mode-btn{padding:9px 16px;border:1px solid var(--light-gray);border-radius:999px;background:#fff;color:var(--gray);font-weight:600;cursor:pointer;transition:var(--transition)}.mode-btn.active{background:linear-gradient(to right,var(--primary),var(--secondary));color:#fff;border-color:transparent;box-shadow:0 6px 18px rgba(67,97,238,.22)}.mode-btn:hover{border-color:var(--primary);color:var(--primary)}.mode-btn.active:hover{color:#fff}.action-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}.action-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:10px 18px;border:1px solid transparent;border-radius:10px;color:#fff;cursor:pointer;font-weight:600;transition:var(--transition);white-space:nowrap}.input-row>.action-btn{flex-shrink:0}.action-btn:hover{transform:translateY(-2px)}.action-btn.primary,.action-btn:not(.secondary):not(.ghost):not(.success){background:linear-gradient(to right,var(--primary),var(--secondary));box-shadow:0 8px 18px rgba(67,97,238,.22)}.action-btn.secondary{background:#fff;color:var(--gray);border-color:var(--light-gray);box-shadow:none}.action-btn.secondary:hover{background:var(--light);color:var(--dark)}.action-btn.success{background:linear-gradient(to right,var(--success),#21b68b);box-shadow:0 8px 18px rgba(6,214,160,.2)}.action-btn.ghost{background:rgba(239,71,111,.08);color:var(--danger);border-color:rgba(239,71,111,.16);box-shadow:none}.action-btn.ghost:hover{background:rgba(239,71,111,.15)}.helper-text{margin-top:10px;color:var(--gray);font-size:.88em;line-height:1.6}.result-grid{margin-top:18px}@media (max-width:960px){.converter-grid{grid-template-columns:1fr}}@media (max-width:768px){.container{padding:20px}.section-heading{flex-direction:column;align-items:flex-start}.card-grid{grid-template-columns:1fr}.value-card.wide{grid-column:span 1}.dual-input-row,.input-row{flex-direction:column}.field-block-small{max-width:none}.input-row .action-btn{width:100%}.action-row .action-btn{flex:1 1 100%}}