/* ============================================================
   QA Statics / Social Ads — Safe-Area & Reserved-UI checker.
   Self-contained (no Tailwind). All classes sf-* prefixed.
   ============================================================ */

/* switcher tab colour (indigo) — matches the seg-tabs pattern in shell.css */
.mode-ico.indigo{background:#4f46e5}
.seg-tabs .mode-tab.active.t-indigo .mode-txt strong{color:#3730a3}

.sf-app{max-width:1160px}
.sf-app .panel{padding:24px}              /* required: global section padding otherwise hugs the card */

/* ---------- hero ---------- */
.sf-hero{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.sf-hero-text{max-width:62ch}
.sf-eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:.7rem;font-weight:800;letter-spacing:.7px;text-transform:uppercase;color:#4f46e5;background:#eef0ff;border:1px solid #dfe2ff;border-radius:20px;padding:5px 12px}
.sf-hero h2{font-size:1.7rem;font-weight:800;color:#101725;letter-spacing:-.01em;margin:11px 0 0}
.sf-hero .accent{color:#4f46e5}
.sf-hero-sub{font-size:.96rem;color:#5b6478;margin:8px 0 0;line-height:1.6}
.sf-hero-badges{display:flex;flex-direction:column;gap:9px;font-size:.82rem;color:#475067;font-weight:600;flex:none}
.sf-hero-badges span{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.sf-hero-badges i{color:#4f46e5;width:16px;text-align:center}

/* ---------- layout ---------- */
.sf-grid{display:grid;grid-template-columns:308px 1fr;gap:18px;margin-top:18px;align-items:start}
@media(max-width:880px){.sf-grid{grid-template-columns:1fr}}

/* ---------- controls ---------- */
.sf-controls{align-self:stretch}
.sf-field{margin-bottom:20px}
.sf-field:last-of-type{margin-bottom:0}
.sf-flabel{display:block;font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.6px;color:#7c879b;margin:0 0 9px}
.sf-platforms{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.sf-platform-btn{border:1.5px solid #e3e7ef;background:#fff;color:#3a4456;padding:10px 8px;border-radius:10px;font-size:12.5px;font-weight:600;cursor:pointer;transition:.14s;text-align:center;font-family:inherit;line-height:1.2}
.sf-platform-btn:hover{border-color:#b9bdf6;background:#f7f8ff}
.sf-platform-btn.active{background:#4f46e5;color:#fff;border-color:#4f46e5;box-shadow:0 2px 8px rgba(79,70,229,.28)}
.sf-sizes{display:flex;flex-direction:column;gap:6px}
.sf-size-btn{border:1.5px solid #e3e7ef;background:#fff;color:#3a4456;padding:9px 13px;border-radius:9px;font-size:12.5px;font-weight:600;cursor:pointer;transition:.14s;font-family:inherit;text-align:left}
.sf-size-btn:hover{border-color:#b9bdf6;background:#f7f8ff}
.sf-size-btn.active{background:#eef0ff;color:#3730a3;border-color:#4f46e5}

/* toggles */
.sf-toggle{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 13px;border:1px solid #e9ecf2;border-radius:11px;cursor:pointer;font-size:13px;font-weight:600;color:#2a3140;background:#fff}
.sf-toggle+.sf-toggle{margin-top:8px}
.sf-toggle-l{display:inline-flex;align-items:center;gap:9px}
.sf-switch{position:relative;width:42px;height:24px;flex:none}
.sf-switch input{position:absolute;opacity:0;width:0;height:0}
.sf-slider{position:absolute;inset:0;background:#cbd5e1;border-radius:999px;cursor:pointer;transition:.22s}
.sf-slider::before{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;border-radius:50%;background:#fff;transition:.22s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.sf-switch input:checked+.sf-slider{background:#4f46e5}
.sf-switch input:checked+.sf-slider::before{transform:translateX(18px)}

/* spec + citation */
.sf-spec{margin-top:20px;border-top:1px solid #eef0f4;padding-top:16px}
.sf-spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:12.5px}
.sf-spec-row+.sf-spec-row{margin-top:9px}
.sf-spec-row>span{color:#7c879b;font-weight:600;flex:none}
.sf-spec-row>b{color:#1f2733;font-weight:700;text-align:right;line-height:1.4}
.sf-res{font-size:14px}
.sf-citation{margin-top:16px;padding:12px 14px;border:1px solid #e6e9ef;border-radius:11px;background:#fafbfe;font-size:12.5px}
.sf-citation .sf-cit-h{font-weight:800;color:#2a3140;margin-bottom:3px}
.sf-citation .sf-cit-sub{color:#6b7280;margin-bottom:8px;line-height:1.45}
.sf-citation a{display:inline-flex;align-items:center;gap:6px;color:#4f46e5;font-weight:700;text-decoration:none}
.sf-citation a:hover{text-decoration:underline}

/* ---------- preview ---------- */
.sf-preview-panel{display:flex;flex-direction:column}
.sf-preview-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}
.sf-preview-head h3{font-size:1.02rem;font-weight:800;color:#101725;margin:0}
.sf-preview-label{font-size:12.5px;color:#6b7280;margin:3px 0 0}
.sf-preview-right{display:flex;align-items:center;gap:9px;flex:none}
.sf-preview-size{background:#f1f3f7;color:#475067;font-size:12px;font-weight:700;padding:6px 12px;border-radius:20px;white-space:nowrap;font-variant-numeric:tabular-nums}
.sf-replace{display:inline-flex;align-items:center;gap:6px;font:inherit;font-size:12px;font-weight:700;color:#475067;background:#fff;border:1.5px solid #dfe3ea;border-radius:9px;padding:6px 12px;cursor:pointer;transition:.14s}
.sf-replace:hover{border-color:#4f46e5;color:#4f46e5}

.sf-stage{flex:1;background:#eef0f3;border-radius:14px;padding:26px;display:flex;align-items:center;justify-content:center;min-height:420px;
  background-image:linear-gradient(45deg,#e5e8ec 25%,transparent 25%),linear-gradient(-45deg,#e5e8ec 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e5e8ec 75%),linear-gradient(-45deg,transparent 75%,#e5e8ec 75%);background-size:18px 18px;background-position:0 0,0 9px,9px -9px,-9px 0}

/* the frame is the artboard — contained stacking context so overlays never escape */
.sf-frame{position:relative;overflow:hidden;isolation:isolate;border-radius:9px;background:#fff;box-shadow:0 8px 28px rgba(16,24,40,.18);transition:width .18s ease,height .18s ease}
.sf-frame img,.sf-frame video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.sf-frame img[hidden],.sf-frame video[hidden]{display:none}

/* dropzone — the empty state, big & obvious; sits behind the overlay markers */
.sf-dropzone{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;text-align:center;
  background:#fbfcff;border:none;cursor:pointer;color:#5b6478;font-family:inherit;padding:18px;transition:background .15s}
.sf-dropzone:hover,.sf-dropzone.drag{background:#eef0ff}
.sf-dropzone i{font-size:30px;color:#4f46e5;margin-bottom:4px}
.sf-dropzone strong{font-size:14px;font-weight:800;color:#2a3140}
.sf-dropzone span{font-size:11.5px;color:#8a93a5}
.sf-dropzone[hidden]{display:none}

/* overlay layers — all click-through so the dropzone stays usable; contained by the frame */
.sf-reserved-layer{position:absolute;inset:0;z-index:3;pointer-events:none}
.sf-box-layer{position:absolute;inset:0;z-index:4;pointer-events:none}
.sf-safe-layer{position:absolute;inset:0;z-index:5;pointer-events:none;overflow:hidden}
.sf-zone{position:absolute;background:rgba(236,72,153,.32);border:1px solid rgba(236,72,153,.55);color:#fff;font-size:10px;font-weight:700;display:flex;align-items:center;justify-content:center;text-align:center;padding:4px;text-shadow:0 1px 2px rgba(0,0,0,.5);line-height:1.15;overflow:hidden}
.sf-action-box{position:absolute;background:rgba(236,72,153,.46);border:1px solid rgba(236,72,153,.62);color:#fff;font-size:9px;font-weight:700;display:flex;align-items:center;justify-content:center;text-align:center;padding:3px;text-shadow:0 1px 2px rgba(0,0,0,.5);line-height:1.1;overflow:hidden}
.sf-safe-box{position:absolute;border:3px dashed #16a34a;background:rgba(34,197,94,.1);box-sizing:border-box;border-radius:3px}

/* footer: legend + download */
.sf-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:16px;flex-wrap:wrap}
.sf-legend{display:flex;align-items:center;gap:18px;font-size:12px;color:#5b6478;font-weight:600;flex-wrap:wrap}
.sf-legend span{display:inline-flex;align-items:center;gap:7px}
.sf-dot-pink{width:13px;height:13px;border-radius:4px;background:rgba(236,72,153,.55)}
.sf-dot-safe{width:14px;height:14px;border-radius:4px;border:2px dashed #16a34a}
.sf-download{display:inline-flex;align-items:center;gap:8px;background:#4f46e5;color:#fff;border:none;padding:12px 20px;border-radius:11px;font-weight:700;font-size:13.5px;cursor:pointer;transition:.15s;font-family:inherit;white-space:nowrap}
.sf-download:hover{background:#4338ca}
.sf-download:disabled{background:#c7cbe6;cursor:not-allowed}