/* Presentation-only OTA preview. All changes are scoped to this page. */
.ota-design-preview {
  --preview-tint: color-mix(in srgb, var(--accent) 9%, var(--card));
  --preview-ring: color-mix(in srgb, var(--accent) 30%, var(--line));
}
.ota-design-preview .preview-toolbar {
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  margin:0 0 20px; padding:10px 0 14px; border-bottom:1px solid var(--line);
  color:var(--muted); font-size:11px;
}
.ota-design-preview .preview-toolbar-label { display:flex; align-items:center; flex-wrap:wrap; gap:8px; }
.ota-design-preview .preview-toolbar-label strong { color:var(--ink); font-weight:650; }
.ota-design-preview .preview-dot { width:6px; height:6px; border-radius:50%; background:var(--accent); }
.ota-design-preview .preview-toolbar-description { padding-left:7px; border-left:1px solid var(--line); }
.ota-design-preview .preview-live-link { color:var(--muted); text-decoration:none; white-space:nowrap; padding:5px 0; }
.ota-design-preview .preview-live-link:hover { color:var(--accent); }
.ota-design-preview .neu-picker-heading { align-items:center; margin-bottom:22px; }
.ota-design-preview .neu-picker-heading h2 { font-size:clamp(23px,2.2vw,30px); letter-spacing:-.045em; }
.ota-design-preview #otaForm .ota-label { color:var(--muted); }
.ota-design-preview #otaForm .ota-device-trigger,
.ota-design-preview #otaForm .ota-region-trigger,
.ota-design-preview #otaForm .ota-version-trigger {
  background:color-mix(in srgb,var(--panel) 84%,var(--bg)); border-color:var(--line);
  transition:border-color 150ms ease, box-shadow 150ms ease;
}
.ota-design-preview #otaForm .ota-device-trigger:hover,
.ota-design-preview #otaForm .ota-region-trigger:hover,
.ota-design-preview #otaForm .ota-version-trigger:hover { border-color:var(--preview-ring); }
.ota-design-preview #otaForm [aria-expanded="true"] { box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 9%,transparent); }
.ota-design-preview #otaResolveBtn { box-shadow:0 5px 18px color-mix(in srgb,var(--accent) 10%,transparent); }
.ota-design-preview .neu-empty {
  border-style:solid; border-color:var(--line); border-radius:18px;
  background:radial-gradient(ellipse at 50% 0,color-mix(in srgb,var(--accent) 7%,transparent),transparent 65%),var(--card);
}
.ota-design-preview .neu-empty h3 { letter-spacing:-.035em; }
.ota-design-preview .neu-empty-symbol { color:var(--accent); }
.ota-design-preview .neu-possibilities span { border-color:var(--line); background:var(--panel); }

/* One shared language for the package and original partition panels. */
.ota-design-preview .ota-result { padding-top:3px; }
.ota-design-preview .ota-result-grid { gap:16px; }
.ota-design-preview .ota-package-panel,
.ota-design-preview .ota-extract-panel {
  position:relative; min-width:0; border-radius:17px; padding:20px;
  border:1px solid var(--line);
  background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 5%,transparent),transparent 45%),var(--card) !important;
  box-shadow:0 5px 20px color-mix(in srgb,var(--bg) 22%,transparent);
}
.ota-design-preview .ota-package-panel { border-top:2px solid var(--preview-ring); }
.ota-design-preview .ota-package-panel > .neu-tool-label,
.ota-design-preview .ota-extract-panel > .neu-tool-label {
  display:flex; gap:7px; align-items:center; margin-bottom:16px;
  color:var(--muted-2); font-size:9px; font-weight:700; letter-spacing:.14em;
}
.ota-design-preview .neu-tool-label svg { width:15px; height:15px; color:var(--accent); flex-shrink:0; }
.ota-design-preview .preview-device-identity { position:relative; padding-left:53px; min-width:0; min-height:42px; }
.ota-design-preview .preview-brand-mark {
  position:absolute; left:0; top:1px; width:40px; height:40px;
  display:flex; align-items:center; justify-content:center; border-radius:12px;
  color:var(--accent); background:var(--preview-tint); border:1px solid var(--preview-ring);
  font-size:24px; font-weight:750; letter-spacing:-.1em; line-height:1;
}
.ota-design-preview .preview-brand-mark[data-brand="oppo"] { font-size:12px; letter-spacing:-.08em; }
.ota-design-preview .preview-brand-mark[data-brand="realme"],
.ota-design-preview .preview-brand-mark[data-brand="redmi"],
.ota-design-preview .preview-brand-mark[data-brand="poco"] { font-size:10px; letter-spacing:-.04em; }
.ota-design-preview .ota-package-title {
  display:flex; align-items:center; flex-wrap:wrap; column-gap:14px; row-gap:6px;
  font-size:clamp(20px,1.9vw,25px); line-height:1.25; letter-spacing:-.035em;
}
.ota-design-preview .ota-package-title .ota-package-region {
  margin:0; padding:4px 8px; border:1px solid var(--line); border-radius:6px;
  color:var(--muted); font-size:10px; font-weight:500; letter-spacing:0; line-height:1.3;
}
.ota-design-preview .ota-version-name { margin-top:7px; line-height:1.65; overflow-wrap:anywhere; }
.ota-design-preview .ota-version-highlight { font-size:1.23em; font-weight:750; color:var(--ink); letter-spacing:.015em; }
.ota-design-preview .ota-version-context { font-size:11px; color:var(--muted-2); }
.ota-design-preview .ota-meta-chips { gap:6px; margin-top:15px; }
.ota-design-preview .ota-chip { min-height:25px; padding:4px 7px; background:color-mix(in srgb,var(--panel) 60%,transparent); border-color:var(--line); }
.ota-design-preview .ota-timer { font-size:11px; color:var(--muted); line-height:1.6; }
.ota-design-preview .ota-package-actions { margin-top:13px; gap:7px; align-items:stretch; }
.ota-design-preview .ota-package-actions .ota-lazy-package-form { flex:1 1 190px; }
.ota-design-preview #downloadBtn {
  display:flex; align-items:center; justify-content:center; gap:12px; width:100%; min-width:0;
  min-height:46px; padding:11px 15px; border-color:var(--accent);
  position:relative; overflow:hidden;
  background:var(--accent); color:var(--preview-action-ink,var(--bg)); font-size:13px; font-weight:800;
  box-shadow:0 4px 13px color-mix(in srgb,var(--accent) 13%,transparent);
  transition:filter 150ms ease,box-shadow 150ms ease;
}
.ota-design-preview #downloadBtn::after { content:'↓'; font-size:18px; font-weight:500; }
.ota-design-preview #downloadBtn::before {
  content:''; position:absolute; inset:0; pointer-events:none; opacity:0;
  background:linear-gradient(110deg,transparent 25%,rgba(255,255,255,.18) 48%,transparent 70%);
  transform:translateX(-115%); transition:transform 430ms ease,opacity 200ms ease;
}
.ota-design-preview #downloadBtn:hover { filter:brightness(1.08); box-shadow:0 5px 17px color-mix(in srgb,var(--accent) 20%,transparent); }
.ota-design-preview #copyBtn { min-height:46px; border-color:var(--line); color:var(--muted); background:transparent; font-weight:600; }
.ota-design-preview #changelogBtn { min-height:38px; font-size:11px; }
.ota-design-preview .ota-build-menu > summary { min-height:30px; padding:6px 9px; font-size:10px; color:var(--muted); background:transparent; }
.ota-design-preview .ota-build-menu-popover { border:1px solid var(--preview-ring); border-radius:12px; box-shadow:var(--shadow); }

/* Cache figures remain exactly the original server figures. */
.ota-design-preview .ota-build-status { margin-top:14px; gap:8px; padding:13px 0 0; }
.ota-design-preview .ota-build-status > .preview-status-tile {
  position:relative; padding:10px 11px; min-width:0; border-radius:10px;
  background:color-mix(in srgb,var(--panel) 65%,transparent); border-color:var(--line);
}
.ota-design-preview .preview-status-tile > span:first-child { display:flex; align-items:center; gap:5px; font-size:9px; }
.ota-design-preview .preview-status-tile > span svg { width:11px; height:11px; flex-shrink:0; color:var(--muted-2); }
.ota-design-preview .preview-status-tile > strong { margin-top:5px; font-size:12px; font-weight:650; overflow-wrap:anywhere; }
.ota-design-preview .ota-build-status .preview-cache-bar {
  position:absolute; left:11px; right:11px; bottom:5px; height:2px;
  overflow:hidden; border-radius:10px; background:var(--line);
}
.ota-design-preview .preview-cache-bar > i { display:block; height:100%; border-radius:inherit; background:var(--accent); }
.ota-design-preview .preview-cache-bar[hidden] { display:none; }

.ota-design-preview .ota-extract-panel:not(.ota-root-patch-panel) h3 { font-size:21px; letter-spacing:-.03em; }
.ota-design-preview .ota-extract-panel > .ota-note { font-size:11px; line-height:1.7; margin-top:9px; }
.ota-design-preview .ota-image-field > span { font-size:10px; color:var(--muted-2); letter-spacing:.015em; }
.ota-design-preview .ota-image-trigger {
  min-height:47px; border-radius:10px; border-color:var(--preview-ring);
  background:color-mix(in srgb,var(--panel) 75%,transparent);
}
.ota-design-preview .ota-image-trigger:hover { border-color:var(--accent); }
.ota-design-preview #otaImageValue, .ota-design-preview #otaRootPatchValue { font-weight:650; font-size:13px; }
.ota-design-preview .ota-image-popover { border-radius:12px; }
.ota-design-preview .ota-image-cached-badge { background:var(--preview-tint); color:var(--accent); border-color:var(--preview-ring); }
.ota-design-preview #otaImageDownloadBtn, .ota-design-preview #otaRootPatchBtn {
  min-height:44px; border:1px solid var(--preview-ring); color:var(--ink);
  background:color-mix(in srgb,var(--accent) 13%,var(--card)); font-weight:750;
}
.ota-design-preview #otaImageDownloadBtn:not(:disabled):hover,
.ota-design-preview #otaRootPatchBtn:not(:disabled):hover { background:color-mix(in srgb,var(--accent) 21%,var(--card)); border-color:var(--accent); }
.ota-design-preview .ota-all-partitions > summary { font-size:11px; color:var(--muted); }
.ota-design-preview #otaImageStatus { margin-top:12px; font-size:11px; }
.ota-design-preview .ota-root-patch-panel {
  border-color:color-mix(in srgb,var(--accent-2) 25%,var(--line));
  background:linear-gradient(115deg,color-mix(in srgb,var(--accent-2) 8%,transparent),transparent 65%),var(--card) !important;
}
.ota-design-preview .ota-root-patch-panel > .neu-tool-label svg { color:var(--accent-2); }
.ota-design-preview .ota-root-patch-panel h3 { font-size:20px; letter-spacing:-.025em; }
.ota-design-preview .preview-root-release { padding:4px 9px; border:1px solid var(--line); border-radius:6px; font-size:11px; font-variant-numeric:tabular-nums; color:var(--accent-2); }
.ota-design-preview .preview-root-release[hidden] { display:none; }
.ota-design-preview .ota-root-patch-panel[hidden] { display:none !important; }
.ota-design-preview .ota-help { margin-top:16px; }
.ota-design-preview .preview-result-enter { animation:preview-result-in 180ms ease-out both; }
@keyframes preview-result-in { from { opacity:.45; transform:translateY(4px); } to { opacity:1; transform:none; } }

@media (hover:hover) and (pointer:fine) {
  .ota-design-preview .ota-package-panel,
  .ota-design-preview .ota-extract-panel { transition:border-color 180ms ease,box-shadow 180ms ease; }
  .ota-design-preview .ota-package-panel:hover,
  .ota-design-preview .ota-extract-panel:hover {
    border-color:var(--preview-ring);
    box-shadow:0 7px 25px color-mix(in srgb,var(--bg) 25%,transparent),0 0 0 1px color-mix(in srgb,var(--accent) 3%,transparent);
  }
  .ota-design-preview #downloadBtn:not(:disabled):hover::before { opacity:1; transform:translateX(115%); }
  .ota-design-preview .ota-region-option { transition:background-color 130ms ease,border-color 130ms ease; }
}
.ota-design-preview .ota-extract-panel:focus-within { border-color:var(--preview-ring); }

@media (max-width:700px) {
  .ota-design-preview .preview-toolbar { gap:8px; margin-bottom:15px; font-size:10px; }
  .ota-design-preview .preview-toolbar-description { display:none; }
  .ota-design-preview .neu-picker-heading h2 { font-size:25px; }
  .ota-design-preview .ota-result-grid { gap:12px; }
  .ota-design-preview .ota-package-panel, .ota-design-preview .ota-extract-panel { padding:14px; border-radius:14px; }
  .ota-design-preview .ota-package-panel > .neu-tool-label, .ota-design-preview .ota-extract-panel > .neu-tool-label { margin-bottom:10px; }
  .ota-design-preview .preview-device-identity { padding-left:46px; min-height:36px; }
  .ota-design-preview .preview-brand-mark { width:34px; height:34px; border-radius:9px; font-size:22px; }
  .ota-design-preview .ota-package-title { font-size:20px; column-gap:10px; }
  .ota-design-preview .ota-package-title .ota-package-region { font-size:9px; padding:3px 6px; }
  .ota-design-preview .ota-package-panel .ota-panel-head { gap:9px; }
  .ota-design-preview .ota-version-name { margin-top:5px; font-size:12px; }
  .ota-design-preview .ota-meta-chips { margin-top:10px; gap:5px; }
  .ota-design-preview .ota-package-actions { gap:6px; margin-top:10px; }
  .ota-design-preview .ota-package-actions .ota-lazy-package-form { flex:1 1 170px; }
  .ota-design-preview #downloadBtn { min-height:44px; padding:9px 12px; font-size:12px; }
  .ota-design-preview #copyBtn { min-height:44px; font-size:11px; padding:9px 11px; }
  .ota-design-preview .ota-build-status { margin-top:10px; padding-top:10px; gap:6px; }
  .ota-design-preview .ota-build-status > .preview-status-tile { padding:8px 7px; text-align:left; }
  .ota-design-preview .preview-status-tile > span:first-child { gap:4px; font-size:9px; }
  .ota-design-preview .preview-status-tile > strong { margin-top:4px; font-size:11px; }
  .ota-design-preview .ota-build-status .preview-cache-bar { left:7px; right:7px; bottom:3px; }
  .ota-design-preview .ota-extract-panel:not(.ota-root-patch-panel) h3 { font-size:19px; }
  .ota-design-preview .ota-extract-panel > .ota-note { font-size:11px; }
}
@media (max-width:370px) {
  .ota-design-preview .ota-package-title { font-size:18px; }
  .ota-design-preview .ota-package-actions .ota-lazy-package-form { flex-basis:100%; }
  .ota-design-preview #copyBtn, .ota-design-preview #changelogBtn { flex:1 1 auto; min-height:34px; }
  .ota-design-preview .preview-status-tile > span svg { display:none; }
}
@media (prefers-reduced-motion:reduce) {
  .ota-design-preview .preview-result-enter { animation:none; }
  .ota-design-preview #downloadBtn::before { display:none; }
  .ota-design-preview *, .ota-design-preview *::before, .ota-design-preview *::after { transition:none !important; }
}