:root{--bg:#f7f8fb;--panel:#fff;--text:#0f172a;--muted:#64748b;--border:#e2e8f0;--primary:#0f172a;--soft:#f8fafc;--front:#0f766e;--rear:#7c3aed}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
a{text-decoration:none}
.site-wrap,.admin-wrap{max-width:1440px;margin:0 auto;padding:24px}.site-wrap{display:grid;gap:24px;grid-template-columns:360px 1fr}.panel{background:var(--panel);border:1px solid var(--border);border-radius:24px;padding:24px;box-shadow:0 10px 30px rgba(15,23,42,.05)}
.controls h1,.login-card h1,.admin-topbar h1{margin:0 0 20px;font-size:32px}.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}.field label{font-size:14px;font-weight:700}.field input,.field select{width:100%;padding:14px 16px;border:1px solid var(--border);border-radius:14px;background:#fff;font-size:15px}
.preview-canvas-wrap{position:relative;overflow:hidden;border-radius:20px;background:#fff;border:1px solid var(--border)}canvas{display:block;width:100%}.loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.7);font-size:14px;color:var(--muted)}
.color-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.color-btn{padding:14px 12px;border:1px solid var(--border);background:#fff;border-radius:16px;cursor:pointer;font-size:14px}.color-btn.active{background:#0f172a;color:#fff;border-color:#0f172a}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:440px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:14px;background:var(--primary);color:#fff;border:none;cursor:pointer;font-weight:700}.btn-secondary{background:#fff;color:var(--text);border:1px solid var(--border)}.error-box{padding:12px 14px;border-radius:14px;background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;margin-bottom:14px}
.admin-topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:24px 24px 0}.admin-actions{display:flex;gap:12px}.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding:24px}.toggle-row{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border:1px solid var(--border);border-radius:16px;margin-bottom:18px;background:#fff}.slider-block{padding:18px;border:1px solid var(--border);border-radius:18px;margin-top:0;background:#fbfdff}.slider-block h3{margin:0 0 12px}.slider-block label{display:grid;grid-template-columns:70px 1fr 60px;gap:12px;align-items:center;font-size:14px;margin:10px 0}.slider-block input[type=range]{width:100%}.admin-color-list{display:grid;gap:10px}.admin-color-row{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border:1px solid var(--border);border-radius:14px;background:#fff}.admin-color-meta{display:flex;align-items:center;gap:10px}.swatch{width:18px;height:18px;border-radius:999px;border:1px solid #cbd5e1}.save-bar{display:flex;align-items:center;gap:14px}.save-bar span{font-size:14px;color:var(--muted)}
.admin-grid-2col{grid-template-columns:1fr 1fr}.panel-full{grid-column:1/-1}.field-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.stack-actions{display:flex;gap:10px;flex-wrap:wrap}.danger-outline{border-color:#fecaca;color:#b91c1c}.danger-outline:hover{background:#fef2f2}
.section-header{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:22px}.section-header h2{margin:0 0 6px;font-size:24px}.section-header p{margin:0;color:var(--muted);font-size:14px;line-height:1.5}
.positioning-layout{display:grid;grid-template-columns:minmax(360px,420px) 1fr;gap:24px;align-items:start}.positioning-controls{min-width:0}.positioning-preview-col{min-width:0}.axle-editor-grid{display:grid;gap:16px}.compact-block{margin-top:0}.preview-toolbar{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:14px;flex-wrap:wrap}.preview-legend{display:flex;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:13px}.preview-legend span{display:inline-flex;align-items:center;gap:8px}.dot{display:inline-block;width:12px;height:12px;border-radius:999px}.dot-front{background:var(--front)}.dot-rear{background:var(--rear)}.legend-axis{display:inline-block;width:18px;height:2px;background:#94a3b8;position:relative}.legend-axis::before{content:"";position:absolute;left:8px;top:-8px;width:2px;height:18px;background:#94a3b8}.preview-note{font-size:13px;color:var(--muted)}
.admin-positioning-wrap{background:linear-gradient(180deg,#fff,#f8fafc);min-height:560px}.save-panel{padding-top:18px;padding-bottom:18px}
@media (max-width: 1100px){.site-wrap,.admin-grid,.admin-grid-2col,.positioning-layout,.field-grid-2{grid-template-columns:1fr}.admin-topbar{flex-direction:column;align-items:flex-start}.admin-actions{flex-wrap:wrap}.admin-positioning-wrap{min-height:420px}.section-header{flex-direction:column}}