.tabs { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); gap: 48px; }
.tab-list[role="tablist"] { display: flex; flex-direction: column; align-items: stretch; gap: 8px; }
.tab-list [role="tab"] {
  width: 100%;
  min-height: 64px;
  padding: 18px 20px;
  border: 0;
  border-left: 4px solid var(--c-clear);
  border-radius: 0 var(--r-item) var(--r-item) 0;
  background: var(--c-panel);
  color: var(--c-muted);
  text-align: left;
  font-size: 17px;
  line-height: 1.6;
}
.tab-list [role="tab"]:hover { background: var(--c-bg); color: var(--c-text); }
.tab-list [role="tab"][aria-selected="true"] { border-left-color: var(--c-accent); color: var(--c-text); font-weight: var(--weight-display); }
.tab-panels { min-width: 0; }
.tab-panel {
  min-height: 440px;
  padding: 40px;
  border-radius: var(--r-section);
  background: var(--c-aqua);
  color: var(--c-text);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.tab-panel h3 { margin-top: 0; }
.tab-panel p { line-height: 1.9; }
.rule-pill {
  display: inline-block;
  max-width: 100%;
  margin-top: auto;
  padding: 14px 22px;
  border-radius: var(--r-pill);
  background: var(--c-aqua-deep);
  color: var(--c-on-dark);
  font-family: var(--font-mono);
  font-size: 15px;
  overflow-wrap: anywhere;
}
.tab-mobile-trigger { display: none; }
.toc {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px;
  border-radius: var(--r-menu);
  background: var(--c-panel-2);
  color: var(--c-text);
}
.toc a { display: block; min-height: 44px; padding: 10px 16px; border-radius: var(--r-pill); font-size: 14px; }
.toc a:hover, .toc a[aria-current] { background: var(--c-panel); color: var(--c-accent-dark); }
.toc-title { padding-inline: 8px; font-weight: var(--weight-strong); }
.faq-list { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--c-border); border-radius: var(--r-menu); background: var(--c-panel); color: var(--c-text); }
.faq-item > summary {
  position: relative;
  list-style: none;
  padding: 22px 56px 22px 24px;
  font-weight: var(--weight-strong);
}
.faq-item > summary::-webkit-details-marker { display: none; }
.faq-item > summary::after { content: "+"; position: absolute; right: 24px; top: 22px; color: var(--c-accent-dark); font-family: var(--font-mono); }
.faq-item[open] > summary::after { content: "−"; }
.faq-answer { padding: 0 24px 24px; color: var(--c-muted); line-height: 1.9; }
.faq-answer > :last-child { margin-bottom: 0; }
.term-card { padding: 28px; border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); border-top: 4px solid var(--c-aqua); box-shadow: var(--shadow-float); }
.term-card h3 { margin-top: 12px; margin-bottom: 12px; }
.term-card p { color: var(--c-muted); }
.term-category { color: var(--c-accent-dark); font-size: 13px; font-weight: var(--weight-strong); }
.appstore-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  max-width: 100%;
  padding: 12px 24px;
  border: 1px solid var(--c-accent);
  border-radius: var(--r-btn);
  background: var(--c-accent);
  color: var(--c-on-dark);
  font-size: 16px;
  font-weight: var(--weight-strong);
  line-height: 1.4;
  transition: background-color var(--time-ui), border-color var(--time-ui);
}
.appstore-button:hover { background: var(--c-accent-dark); color: var(--c-on-dark); border-color: var(--c-accent-dark); }
.appstore-button svg { width: 20px; height: 20px; flex-shrink: 0; }
.appstore-copy { display: flex; flex-direction: column; text-align: left; }
.appstore-copy small { font-size: 11px; font-weight: var(--weight-medium); }
.appstore-copy b { font-size: 16px; font-weight: var(--weight-strong); }
.fact-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-block: 20px; padding: 0; list-style: none; }
.fact-pill, .badge, .tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  max-width: 100%;
  padding: 6px 12px;
  border-radius: var(--r-pill);
  border: 1px solid var(--c-border);
  background: var(--c-panel);
  color: var(--c-muted);
  font-size: 12px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.fact-pill b { color: var(--c-text); font-weight: var(--weight-strong); }
.badge { background: var(--c-accent-tint); color: var(--c-accent-dark); border-color: var(--c-accent-tint); }
.badge-aqua { background: var(--c-aqua); color: var(--c-text); border-color: var(--c-aqua); }
.badge-lavender { background: var(--c-lavender); color: var(--c-text); border-color: var(--c-lavender); }
.badge-success { background: var(--c-panel); color: var(--c-success); border-color: var(--c-success); }
.fact-pill svg, .badge svg { width: 14px; height: 14px; flex-shrink: 0; }
.official-shot {
  width: 100%;
  max-width: 280px;
  margin: 0 auto;
  padding: 0;
  flex-shrink: 0;
}
.official-shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-shot);
}
.official-shot { filter: none; }
.official-shot img { outline: 1px solid var(--c-border); outline-offset: -1px; }
.official-shot figcaption { margin-top: 14px; color: var(--c-muted); font-size: 13px; line-height: 1.7; }
.shot-row { display: flex; align-items: flex-start; justify-content: center; flex-wrap: wrap; gap: 32px; }
.shot-placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 750 / 1334;
  border: 1px solid var(--c-border);
  border-radius: var(--r-shot);
  background: var(--c-panel-2);
  color: var(--c-muted);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
}
.device-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.device-card { display: block; padding: 36px; border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); box-shadow: var(--shadow-float); }
.device-card > svg { width: 48px; height: 48px; color: var(--c-accent-dark); }
.device-card h3 { margin-block: 20px 12px; }
.device-card p { color: var(--c-muted); }
.device-card .card-action { color: var(--c-accent-dark); font-weight: var(--weight-strong); }
.device-card:hover .card-action { text-decoration: underline; text-underline-offset: 4px; }
.article-card { display: flex; flex-direction: column; align-items: flex-start; padding: 32px; border-radius: var(--r-card); background: var(--c-panel); color: var(--c-text); box-shadow: var(--shadow-float); }
.article-card h3 { font-size: 21px; margin-block: 20px 16px; }
.article-card h3 a:hover { color: var(--c-accent-dark); }
.article-card p { color: var(--c-muted); line-height: 1.85; }
.article-card .card-action { margin-top: auto; padding-top: 12px; color: var(--c-accent-dark); font-weight: var(--weight-strong); }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; color: var(--c-muted); font-size: 13px; }
.callout {
  margin: 28px 0;
  padding: 24px 28px;
  border: 0;
  border-left: 4px solid var(--c-accent);
  border-radius: 0 var(--r-menu) var(--r-menu) 0;
  background: var(--c-accent-tint);
  color: var(--c-text);
}
.callout > :last-child { margin-bottom: 0; }
.callout-title { display: block; margin-bottom: 8px; font-weight: var(--weight-strong); color: var(--c-accent-dark); }
.callout-warning { border-left-color: var(--c-warn); background: var(--c-panel-2); color: var(--c-text); }
.callout-warning .callout-title { color: var(--c-text); }
.dl-fab {
  position: fixed;
  right: 24px;
  bottom: max(24px, env(safe-area-inset-bottom));
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  max-width: calc(100% - 32px);
  padding: 10px 18px;
  border-radius: var(--r-pill);
  background: var(--c-panel);
  color: var(--c-accent-dark);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-float);
  font-size: 14px;
  font-weight: var(--weight-strong);
}
.dl-fab svg { width: 15px; height: 15px; }
.dl-fab:hover { border-color: var(--c-accent); }
.table-scroll { width: 100%; max-width: 100%; min-width: 0; overflow-x: auto; overscroll-behavior-inline: contain; border: 1px solid var(--c-border); border-radius: var(--r-item); }
.data-table { width: 100%; border-collapse: collapse; background: var(--c-panel); color: var(--c-text); }
.data-table th, .data-table td, .prose th, .prose td {
  min-width: 7em;
  padding: 16px 20px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--c-border);
  overflow-wrap: normal;
  word-break: normal;
}
.data-table th, .prose th { background: var(--c-panel-2); color: var(--c-text); font-weight: var(--weight-strong); }
.data-table tr:last-child td { border-bottom: 0; }
.prose table {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
  min-width: 0;
  border-collapse: collapse;
  overscroll-behavior-inline: contain;
  background: var(--c-panel);
  color: var(--c-text);
}
.prose table td, .prose table th { min-width: 7em; overflow-wrap: normal; word-break: normal; }
.data-table code, .prose table code { overflow-wrap: anywhere; }
.grouped-list { margin: 0; padding: 0; list-style: none; border-radius: var(--r-menu); background: var(--c-panel); color: var(--c-text); box-shadow: var(--shadow-float); }
.grouped-list li + li { border-top: 1px solid var(--c-border); }
.grouped-list a { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; padding: 18px 24px; }
.grouped-list a::after { content: "›"; color: var(--c-accent-dark); font-size: 22px; }
.quick-steps { position: relative; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; padding-bottom: 32px; }
.quick-steps::after { content: ""; position: absolute; left: 24px; right: 24px; bottom: 6px; border-bottom: 2px dashed var(--c-border-strong); }
.step-number { display: block; margin-bottom: 24px; font-family: var(--font-display); font-size: 60px; line-height: 1; font-weight: var(--weight-display); color: var(--c-panel); -webkit-text-stroke: 1px var(--c-accent-dark); }
.article-store-card { margin-block: 48px; padding: 32px; border-radius: var(--r-card); background: var(--c-accent-tint); color: var(--c-text); }
.article-store-card h2 { margin-top: 0; font-size: 24px; }
.article-store-card p { max-width: 44em; color: var(--c-muted); }
.preview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.preview-stack { display: grid; gap: 32px; }
.palette-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.swatch { min-width: 0; border: 1px solid var(--c-border); border-radius: var(--r-item); background: var(--c-panel); color: var(--c-text); }
.swatch::before { content: ""; display: block; height: 64px; border-radius: var(--r-item) var(--r-item) 0 0; background: var(--swatch-color); }
.swatch code { display: block; padding: 10px 12px; font-size: 12px; }
.sw-bg { --swatch-color: var(--c-bg); }
.sw-panel { --swatch-color: var(--c-panel); }
.sw-panel2 { --swatch-color: var(--c-panel-2); }
.sw-border { --swatch-color: var(--c-border); }
.sw-border-strong { --swatch-color: var(--c-border-strong); }
.sw-accent { --swatch-color: var(--c-accent); }
.sw-accent-dark { --swatch-color: var(--c-accent-dark); }
.sw-tint { --swatch-color: var(--c-accent-tint); }
.sw-text { --swatch-color: var(--c-text); }
.sw-muted { --swatch-color: var(--c-muted); }
.sw-success { --swatch-color: var(--c-success); }
.sw-warn { --swatch-color: var(--c-warn); }
.sw-error { --swatch-color: var(--c-error); }
.sw-aqua { --swatch-color: var(--c-aqua); }
.sw-aqua-deep { --swatch-color: var(--c-aqua-deep); }
.sw-lavender { --swatch-color: var(--c-lavender); }
.sw-periwinkle { --swatch-color: var(--c-periwinkle); }
.sw-graphite { --swatch-color: var(--c-graphite); }
.sw-edge { --swatch-color: var(--c-graphite-edge); }
.sw-key { --swatch-color: var(--c-graphite-key); }
.sw-white { --swatch-color: var(--c-on-dark); }
.sw-veil { --swatch-color: var(--c-veil); }
.sw-veil-line { --swatch-color: var(--c-veil-line); }
.sw-focus { --swatch-color: var(--c-focus); }
.sw-overlay { --swatch-color: var(--c-overlay); }
.sw-clear { --swatch-color: var(--c-clear); }
@media (max-width: 900px) {
  .tabs { gap: 24px; }
  .tab-panel { padding: 28px; }
  .palette-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .tabs { display: block; }
  .tabs .tab-list { display: none; }
  .tab-mobile-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    min-height: 60px;
    padding: 18px 16px;
    margin-top: 8px;
    border: 0;
    border-left: 4px solid var(--c-clear);
    border-radius: var(--r-item);
    background: var(--c-panel);
    color: var(--c-text);
    text-align: left;
    font-weight: var(--weight-strong);
  }
  .tab-mobile-trigger::after { content: "+"; color: var(--c-accent-dark); flex-shrink: 0; }
  .tab-mobile-trigger[aria-expanded="true"] { border-left-color: var(--c-accent); }
  .tab-mobile-trigger[aria-expanded="true"]::after { content: "−"; }
  .tab-panel { min-height: 320px; margin-top: 8px; padding: 24px; border-radius: var(--r-menu); }
  .rule-pill { font-size: 12px; padding: 12px 16px; }
  .fact-row { flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 6px; }
  .fact-pill { font-size: 11px; padding: 5px 9px; }
  .device-cards, .preview-grid, .quick-steps { grid-template-columns: minmax(0, 1fr); }
  .quick-steps::after { left: 32px; right: 32px; }
  .device-card, .article-card, .term-card, .article-store-card { padding: 24px; }
  .shot-row { flex-direction: column; align-items: center; }
  .official-shot { max-width: min(280px, 100%); }
  .palette-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .callout { padding: 20px; }
  .dl-fab { right: 16px; bottom: max(16px, env(safe-area-inset-bottom)); }
}