:root{--ink:#16221c;--muted:#66726b;--paper:#f4f6f1;--panel:#fff;--line:#dce2dc;--lime:#c4f563;--lime-deep:#95c33b;--danger:#b43b32;--shadow:0 18px 50px rgba(22,34,28,.12)}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Inter,"Microsoft JhengHei",Arial,sans-serif;color:var(--ink);background:var(--paper)}
button,input,textarea{font:inherit}
button{cursor:pointer}
.editor-brand{color:var(--ink);font-size:20px;font-weight:900;letter-spacing:-.03em;text-decoration:none}
.eyebrow{margin:0 0 10px;color:#64831e;font-size:12px;font-weight:900;letter-spacing:.16em}
.auth-page{display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 20% 10%,rgba(196,245,99,.3),transparent 32%),#eef2eb}
.auth-shell{width:min(100%,480px)}
.auth-card{padding:42px;border:1px solid rgba(22,34,28,.08);border-radius:22px;background:rgba(255,255,255,.94);box-shadow:var(--shadow)}
.auth-card .editor-brand{display:inline-block;margin-bottom:44px}
.auth-card h1{margin:0 0 12px;font-size:36px;letter-spacing:-.05em}
.auth-card>p:not(.eyebrow){color:var(--muted);line-height:1.7}
.auth-card form{display:grid;gap:16px;margin:28px 0 20px}
.auth-card label,.panel label{display:grid;gap:8px;font-size:13px;font-weight:800}
.auth-card input,.panel input,.panel textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;padding:13px 14px;color:var(--ink);outline:none}
.auth-card input:focus,.panel input:focus,.panel textarea:focus{border-color:var(--lime-deep);box-shadow:0 0 0 3px rgba(196,245,99,.28)}
.auth-card button,.primary{border:0;border-radius:10px;background:var(--lime);padding:13px 18px;color:#17251e;font-weight:900}
.auth-card button:hover,.primary:hover{background:#b8eb55}
.auth-error{margin-top:18px;border-radius:10px;background:#fff0ee;padding:12px 14px;color:var(--danger);font-weight:700}
.back-link{color:var(--muted);font-size:13px}
.editor-page{height:100vh;overflow:hidden}
.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 18px;border-bottom:1px solid var(--line);background:#fff;position:relative;z-index:20}
.topbar>div{display:flex;align-items:center;gap:18px}
.top-label{padding-left:18px;border-left:1px solid var(--line);color:var(--muted);font-size:13px;font-weight:700}
.top-actions{gap:8px!important}
.top-actions button,.device-switcher button,.sidebar-tabs button,.dialog-actions button{border:0;border-radius:8px;padding:9px 12px;font-size:13px;font-weight:800}
.ghost,.device-switcher button,.sidebar-tabs button{background:#eef1ed;color:var(--ink)}
.ghost:hover,.device-switcher button:hover,.sidebar-tabs button:hover{background:#e3e8e1}
.ghost:disabled{opacity:.42;cursor:not-allowed}
.icon-button{border:0;background:transparent!important;font-size:18px!important}
.save-state{min-width:118px;color:var(--muted);font-size:12px;text-align:right}
.editor-shell{height:calc(100vh - 64px);display:grid;grid-template-columns:320px minmax(0,1fr)}
.sidebar{overflow:auto;border-right:1px solid var(--line);background:#fff}
.sidebar-tabs{position:sticky;top:0;z-index:5;display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:12px;border-bottom:1px solid var(--line);background:#fff}
.sidebar-tabs button.active{background:var(--ink);color:#fff}
.panel{display:none;padding:20px 16px 40px}
.panel.active{display:block}
.panel-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:12px}
.panel-heading p{margin:0 0 3px;color:var(--muted);font-size:11px;font-weight:800;letter-spacing:.1em}
.panel-heading h2{margin:0;font-size:22px;letter-spacing:-.03em}
.panel-heading>span{display:grid;place-items:center;min-width:30px;height:30px;border-radius:99px;background:var(--lime);font-size:12px;font-weight:900}
.panel-help{margin:0 0 18px;color:var(--muted);font-size:13px;line-height:1.6}
.block-list,.backup-list{display:grid;gap:8px}
.block-item{display:grid;grid-template-columns:28px minmax(0,1fr) 26px;align-items:center;gap:9px;padding:11px;border:1px solid var(--line);border-radius:11px;background:#fff;transition:.15s ease}
.block-item:hover,.block-item.active{border-color:#9ec84a;background:#f8fde9}
.block-item.dragging{opacity:.45}
.drag-handle{color:#8a958e;font-size:17px;cursor:grab;user-select:none}
.block-copy{min-width:0}
.block-copy strong,.block-copy small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.block-copy strong{font-size:13px}.block-copy small{margin-top:3px;color:var(--muted);font-size:11px}
.visibility-button{border:0;background:transparent;color:var(--muted);font-size:15px}
.panel label{margin:18px 0}
.panel label small{color:var(--muted);font-weight:500;text-align:right}
.panel textarea{resize:vertical;line-height:1.55}
.search-preview{margin-top:28px;padding:18px;border:1px solid var(--line);border-radius:12px;background:#fff}
.search-preview small{color:#39704d}.search-preview strong{display:block;margin:8px 0;color:#1558b0;font-size:18px;line-height:1.3}.search-preview p{margin:0;color:#4d5650;font-size:13px;line-height:1.5}
.backup-item{padding:12px;border:1px solid var(--line);border-radius:10px}
.backup-item strong,.backup-item small{display:block}.backup-item strong{font-size:12px}.backup-item small{margin:4px 0 10px;color:var(--muted)}
.backup-item button{width:100%;border:0;border-radius:7px;background:#eef1ed;padding:8px;font-size:12px;font-weight:800}
.workspace{min-width:0;display:flex;flex-direction:column;background:#dfe4de}
.workspace-toolbar{height:52px;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:0 18px;border-bottom:1px solid #ccd3cb;background:#f8faf7}
.workspace-toolbar p{margin:0;color:var(--muted);font-size:12px}.workspace-toolbar a{color:var(--ink);font-size:12px;font-weight:800;text-decoration:none}
.device-switcher{display:flex;gap:5px}.device-switcher button{padding:7px 10px}.device-switcher button.active{background:var(--ink);color:#fff}
.canvas{flex:1;min-height:0;overflow:auto;padding:28px;display:flex;justify-content:center;align-items:flex-start}
.canvas iframe{display:block;width:100%;height:100%;min-height:720px;border:0;background:#fff;box-shadow:0 10px 35px rgba(22,34,28,.2);transition:width .25s ease}
.canvas.tablet iframe{width:768px}.canvas.mobile iframe{width:390px}
.toast{position:fixed;right:22px;bottom:22px;z-index:50;max-width:380px;transform:translateY(18px);opacity:0;pointer-events:none;border-radius:11px;background:var(--ink);padding:13px 16px;color:#fff;font-size:13px;font-weight:700;box-shadow:var(--shadow);transition:.2s ease}
.toast.show{transform:none;opacity:1}.toast.error{background:#8f2f29}
.dialog-backdrop{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:20px;background:rgba(14,22,18,.58);backdrop-filter:blur(4px)}
.dialog-backdrop[hidden]{display:none}
.dialog{width:min(100%,480px);border-radius:18px;background:#fff;padding:28px;box-shadow:var(--shadow)}
.dialog h2{margin:0;font-size:28px}.dialog>p:not(.eyebrow){color:var(--muted);line-height:1.6}.dialog code{background:#eef1ed;padding:2px 5px;border-radius:5px}
.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.validation-message{border-radius:9px;background:#fff0ee;padding:12px;color:var(--danger);font-size:13px;font-weight:700}
@media(max-width:900px){.top-label,.save-state,.top-actions .ghost{display:none}.editor-shell{grid-template-columns:260px minmax(0,1fr)}.workspace-toolbar p{display:none}}
@media(max-width:680px){.editor-page{height:auto;overflow:auto}.topbar{position:sticky;top:0}.editor-shell{height:auto;display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line)}.workspace{height:75vh}.top-actions .primary{display:block}.canvas{padding:12px}.sidebar{max-height:48vh}.auth-card{padding:28px 22px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}