:root{color-scheme:light;font-family:Trebuchet MS,Segoe UI,sans-serif;background:radial-gradient(circle at top left,rgba(245,158,11,.22),transparent 30%),radial-gradient(circle at top right,rgba(59,130,246,.2),transparent 25%),linear-gradient(180deg,#f6f8fb,#eef2f7);color:#172033}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input,textarea,select{font:inherit}button,.button{border:none;border-radius:12px;cursor:pointer;text-decoration:none}.page-shell,.editor-shell{width:min(1400px,calc(100vw - 32px));margin:0 auto;padding:24px 0 40px}.hero,.editor-header,.panel,.card,.sidebar-list,.message-card,.preview-stack{background:#ffffffe6;border:1px solid rgba(23,32,51,.08);border-radius:20px;box-shadow:0 18px 45px #0f172a14;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.hero,.editor-header{display:flex;justify-content:space-between;gap:24px;padding:24px;margin-bottom:24px}.hero__actions,.editor-header__actions,.panel__actions,.card__actions{display:flex;gap:12px;flex-wrap:wrap}.button{padding:11px 16px;background:#1749b8;color:#fff}.button--ghost{background:#eef3ff;color:#1749b8}.button--danger{background:#b42318;color:#fff}.eyebrow,.helper-text,.editor-header__meta,.sidebar-list__meta,.decoded-preview,.back-link{color:#5b667c}.title-input{width:min(560px,100%);font-size:clamp(1.8rem,4vw,2.8rem);font-weight:700;background:transparent;border:none;padding:0;color:#172033}.cards,.exports-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}.card{padding:18px;display:flex;justify-content:space-between;gap:16px}.tabs{display:flex;gap:10px;margin-bottom:18px}.tabs button{padding:12px 16px;background:#ffffffa6;color:#344054}.tabs .is-active{background:#172033;color:#fff}.workspace{display:grid;grid-template-columns:280px minmax(0,1fr);gap:18px}.workspace__main{display:grid;gap:18px}.sidebar-list,.panel,.preview-stack{padding:18px}.sidebar-list__header,.preview-stack__header{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px}.sidebar-list__items,.message-list{display:grid;gap:12px}.sidebar-list__item{display:grid;grid-template-columns:12px 1fr auto;gap:12px;align-items:center;padding:12px;background:#f8f9fc;border-radius:14px}.sidebar-list__item.is-selected{outline:2px solid #1749b8}.sidebar-list__accent,.message-card__swatch{width:12px;height:12px;border-radius:999px}.panel__row{display:grid;grid-template-columns:repeat(3,minmax(160px,1fr));gap:12px;margin-bottom:16px}.panel__row--wrap{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}label{display:grid;gap:8px}input,textarea,select{width:100%;padding:10px 12px;border-radius:12px;border:1px solid #cfd6e4;background:#fff}textarea{min-height:80px;resize:vertical}.toggle{display:flex;align-items:center;gap:10px}.toggle input{width:auto}.grid-editor{overflow-x:auto}.grid-editor__board{display:grid;gap:2px;padding:12px;background:#d8dee9;border-radius:18px}.grid-editor__cell{min-width:22px;min-height:22px;padding:0;background:#fff;color:#172033;border-radius:4px;border:1px solid rgba(23,32,51,.08)}.grid-editor__cell.is-active{color:#fff;font-weight:700}.grid-editor__cell.is-disabled{background:#cbd5e1;color:#64748b;cursor:not-allowed;opacity:.75}.grid-editor__cell.is-preview-visible{outline:2px solid #f59e0b}.message-card{padding:16px}.message-card__header{display:flex;align-items:center;gap:10px;margin-bottom:12px;font-weight:700}.message-card__count{color:#5b667c;justify-self:end}.alert{padding:12px 16px;border-radius:14px;margin-bottom:16px}.alert--error{background:#fee4e2;color:#912018}.alert--warning{background:#fff1cc;color:#8a5b00}.alert--success{background:#d1fadf;color:#05603a}.conflict-list{margin:0;padding-left:18px}@media(max-width:980px){.workspace{grid-template-columns:1fr}.hero,.editor-header{flex-direction:column}.panel__row{grid-template-columns:1fr}}