:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,SF Pro Text,sans-serif;color-scheme:dark;--bg: #05070a;--bg-elevated: #10121a;--bg-elevated-softer: #151823;--border-subtle: #262a36;--border-strong: #3a3f54;--text: #f5f7fb;--text-muted: #8b92a8;--accent: #4f7fff;--accent-soft: rgba(79, 127, 255, .16);--danger: #ff6b81}*,*:before,*:after{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%}body{background:radial-gradient(circle at top left,#151b32 0,#05070a 40%,#000);color:var(--text)}.app-root{display:flex;flex-direction:column;height:100%}.app-header{display:flex;align-items:center;justify-content:space-between;padding:6px 12px;border-bottom:1px solid var(--border-subtle);background:#05070af2;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.app-title{display:flex;align-items:center;gap:6px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;font-size:14px;color:var(--text-muted)}.app-dot{width:8px;height:8px;border-radius:999px;background:#2ecc71;box-shadow:0 0 8px #2ecc71b3}.app-header-center{display:flex;gap:12px;align-items:center;font-size:14px}.crumb{padding:4px 8px;border-radius:999px;background:#151823e6;border:1px solid var(--border-subtle);display:flex;align-items:baseline;gap:6px}.crumb-label{text-transform:uppercase;letter-spacing:.08em;font-size:14px;color:var(--text-muted)}.crumb-value{font-size:14px;color:var(--text)}.app-header-actions{display:flex;align-items:center;gap:8px}.hint{font-size:14px;color:var(--text-muted)}button{font-family:inherit}.primary-btn{border-radius:999px;padding:4px 10px;font-size:14px;border:1px solid var(--accent);background:linear-gradient(135deg,var(--accent) 0,#95b4ff 100%);color:#05070a;font-weight:600;cursor:pointer}.primary-btn--ghost{background:transparent;color:var(--accent)}.ghost-btn{border-radius:999px;padding:4px 10px;font-size:14px;border:1px solid var(--border-subtle);background:#0a0c12e6;color:var(--text);cursor:pointer}.ghost-btn:hover{border-color:var(--border-strong)}.tiny-btn{border-radius:999px;width:18px;height:18px;padding:0;border:1px solid var(--border-subtle);background:#0a0c12e6;color:var(--text-muted);font-size:14px;cursor:pointer}.app-main{display:grid;grid-template-columns:220px minmax(0,2fr) minmax(0,1.7fr);gap:0;flex:1;min-height:0}.sidebar{border-right:1px solid var(--border-subtle);background:#06080ef5;padding:8px;display:flex;flex-direction:column;gap:12px}.sidebar-section-header{display:flex;align-items:center;justify-content:space-between;font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:4px}.sidebar-list{display:flex;flex-direction:column;gap:4px}.sidebar-item{position:relative;width:100%;display:flex;align-items:center;padding:4px 6px;border-radius:4px;border:1px solid transparent;background:transparent;cursor:pointer}.sidebar-item--active{background:#1f2640e6;border-color:var(--accent-soft)}.sidebar-item-input{flex:1;border:none;background:transparent;color:var(--text);font-size:14px;padding:0}.sidebar-item-input:focus{outline:none}.sidebar-item-delete{margin-left:4px;font-size:14px;color:var(--text-muted)}.sidebar-item-delete:hover{color:var(--danger)}.center-pane{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1.2fr);min-height:0}.editors{display:grid;grid-template-columns:1fr 1fr;border-right:1px solid var(--border-subtle);background:radial-gradient(circle at top,#171d30 0,#070910 45%,#05070a)}.editor-column{display:flex;flex-direction:column;min-width:0;border-right:1px solid var(--border-subtle)}.editor-column:last-child{border-right:none}.editor-header{padding:6px 10px;border-bottom:1px solid var(--border-subtle);background:#0a0d14f5;display:flex;justify-content:space-between;align-items:baseline}.editor-title{font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted)}.editor-subtitle{font-size:14px;color:var(--text);opacity:.85}.preview-pane{display:flex;flex-direction:column;min-width:0;background:radial-gradient(circle at top,#121623 0,#05070a 45%,#000)}.preview-pane--hidden{display:none}.preview-header{padding:6px 10px;border-bottom:1px solid var(--border-subtle);background:#0a0d14f5;display:flex;align-items:center;justify-content:space-between}.preview-body{flex:1;padding:12px;display:flex;align-items:center;justify-content:center;min-height:0}.preview-iframe{width:100%;height:100%;border-radius:8px;border:1px solid var(--border-strong);background:#fff}.preview-error{color:var(--danger);font-size:14px;white-space:pre-wrap}.badge{border-radius:999px;padding:2px 8px;font-size:14px;border:1px solid var(--border-subtle);color:var(--text-muted)}.badge--ok{border-color:#2ecc7199;color:#a5f3c6}.badge--error{border-color:#ff6b81cc;color:#ffcbd4}.status-bar{display:flex;justify-content:space-between;align-items:center;padding:4px 10px;font-size:14px;border-top:1px solid var(--border-subtle);background:#05070afa;color:var(--text-muted)}.status-right{opacity:.8}