/* ============================================================
   VPNBN · components.css
   Cross-page components: tabs, toc, faq, plan cards, line table,
   platform cards, article cards, callout, promo block, preview kit.
   ============================================================ */

/* ------------------------------------------------------------
   tabs
   ------------------------------------------------------------ */
.tabs{margin:0 0 26px}
.tabs [role="tablist"]{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  padding:6px;
  border-radius:var(--r-pill);
  background:var(--bg-panel2);
  border:1px solid var(--border-soft);
  width:max-content;
  max-width:100%;
}
.tabs [role="tab"]{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:40px;
  padding:8px 20px;
  border-radius:var(--r-pill);
  border:0;
  background:transparent;
  font-size:14.5px;
  font-weight:700;
  color:var(--text-muted);
  cursor:pointer;
  white-space:nowrap;
  transition:background .2s,color .2s,box-shadow .2s;
}
.tabs [role="tab"]:hover{color:var(--text)}
.tabs [role="tab"][aria-selected="true"]{
  background:var(--bg-panel);
  color:var(--accent-dark);
  box-shadow:inset 0 0 0 1px var(--glass-border),0 10px 20px -12px var(--sh-accent-28);
}
.tabs [role="tab"] .tab-note{
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--text-muted);
}
.tab-panel[hidden]{display:none}
.tab-panel{animation:none}

/* ------------------------------------------------------------
   toc (long document chapter nav)
   ------------------------------------------------------------ */
.toc-tabs{
  position:sticky;
  top:var(--header-h);
  z-index:30;
  display:flex;
  gap:8px;
  overflow-x:auto;
  max-width:100%;
  padding:10px 0;
  margin:0 0 26px;
  background:var(--bg);
  border-bottom:1px solid var(--border-soft);
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
}
.toc-tabs a{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  min-height:36px;
  padding:7px 16px;
  border-radius:var(--r-pill);
  background:var(--bg-panel);
  border:1px solid var(--border-soft);
  font-size:13.5px;
  font-weight:600;
  color:var(--text-muted);
  text-decoration:none;
  white-space:nowrap;
  transition:background .2s,color .2s,border-color .2s;
}
.toc-tabs a:hover{color:var(--text);border-color:var(--border-strong)}
.toc-tabs a.is-current{
  background:var(--accent-soft);
  border-color:var(--accent-soft);
  color:var(--accent-dark);
  box-shadow:0 8px 16px -12px var(--sh-accent-28);
}
body:has(.toc-tabs) section[id],
body:has(.toc-tabs) h2[id],
body:has(.toc-tabs) h3[id]{scroll-margin-top:calc(var(--header-h) + 68px)}
.toc-tabs.is-static{position:static}

/* ------------------------------------------------------------
   faq (native details)
   ------------------------------------------------------------ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--bg-panel);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 var(--text-invert),0 14px 30px -26px var(--sh-neutral-10);
  overflow:hidden;
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:44px;
  padding:18px 22px;
  cursor:pointer;
  font-family:var(--font-display);
  font-size:16.5px;
  font-weight:700;
  color:var(--text);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";
  flex:0 0 auto;
  width:11px;height:11px;
  border-right:2px solid var(--accent);
  border-bottom:2px solid var(--accent);
  transform:rotate(45deg) translateY(-2px);
  transition:transform .22s;
}
.faq-item[open] summary::after{transform:rotate(-135deg) translateY(-2px)}
.faq-item[open] summary{color:var(--accent-dark)}
.faq-item .faq-body{
  padding:0 22px 20px;
  color:var(--text-muted);
  font-size:15px;
  line-height:1.78;
}
.faq-item .faq-body p{margin:0 0 10px}
.faq-item .faq-body p:last-child{margin-bottom:0}

/* ------------------------------------------------------------
   plan cards
   ------------------------------------------------------------ */
.plan-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
  align-items:stretch;
}
.plan-card{
  position:relative;
  display:flex;
  flex-direction:column;
  min-width:0;
  padding:26px 24px 24px;
  border-radius:var(--r-card-lg);
  background:var(--bg-panel);
  border:1px solid var(--border);
  box-shadow:0 22px 44px -30px var(--sh-accent-14),inset 0 1px 0 var(--text-invert);
  transition:transform .22s,box-shadow .22s;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:0 30px 54px -30px var(--sh-accent-28),inset 0 1px 0 var(--text-invert)}
.plan-card.is-current{
  border-color:var(--accent);
  box-shadow:0 0 0 2px var(--accent-soft),0 26px 48px -28px var(--sh-accent-28),inset 0 1px 0 var(--text-invert);
}
.plan-flag{
  position:absolute;
  top:-13px;
  left:24px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:26px;
  padding:4px 14px;
  border-radius:var(--r-pill);
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:var(--text-invert);
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  box-shadow:0 10px 20px -12px var(--sh-accent-28);
  white-space:nowrap;
}
.plan-name{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--accent-dark);
}
.plan-title{margin:8px 0 0;font-size:20px;font-weight:800}
.plan-price{
  display:flex;
  align-items:baseline;
  gap:6px;
  margin:16px 0 0;
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--text);
}
.plan-price .amount{font-size:44px;line-height:1;font-variant-numeric:tabular-nums}
.plan-price .unit{font-size:15px;font-weight:600;color:var(--text-muted);letter-spacing:0}
.plan-meta{
  margin:10px 0 0;
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--text-muted);
}
.plan-list{
  display:flex;
  flex-direction:column;
  gap:9px;
  margin:18px 0 22px;
  padding:0;
  font-size:14.5px;
  color:#2C3352;
}
.plan-list li{display:flex;gap:9px;align-items:flex-start;line-height:1.55}
.plan-list svg{flex:0 0 auto;margin-top:3px;color:var(--success)}
.plan-card .btn{margin-top:auto}
.plan-foot{margin-top:12px;font-size:12.5px;color:var(--text-muted);text-align:center}

/* ------------------------------------------------------------
   line / node table
   ------------------------------------------------------------ */
.table-scroll{
  overflow-x:auto;
  max-width:100%;
  -webkit-overflow-scrolling:touch;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  background:var(--bg-panel);
  box-shadow:inset 0 1px 0 var(--text-invert),0 18px 40px -30px var(--sh-neutral-10);
}
.line-table{
  width:100%;
  min-width:660px;
  border-collapse:collapse;
  font-size:14.5px;
}
.line-table caption{
  caption-side:top;
  text-align:left;
  padding:16px 20px 6px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-muted);
}
.line-table th,
.line-table td{
  padding:13px 20px;
  text-align:left;
  border-bottom:1px solid var(--border-soft);
  word-break:keep-all;
  vertical-align:middle;
}
.line-table th{
  font-size:12.5px;
  font-family:var(--font-mono);
  font-weight:600;
  letter-spacing:.05em;
  color:var(--text);
  background:var(--bg-panel2);
  white-space:nowrap;
}
.line-table tbody tr:last-child td{border-bottom:0}
.line-table tbody tr:hover td{background:rgba(213,229,244,.35)}
.line-table .cell-region{font-weight:700;color:var(--text)}
.line-table .cell-city{color:#2C3352}
.line-table .cell-type{font-family:var(--font-mono);font-size:12.5px;color:var(--accent-dark)}
.line-table .cell-media{color:var(--text-muted)}
.line-table .row-flag{display:inline-flex;align-items:center;gap:9px;white-space:nowrap}
.line-table .row-flag svg{flex:0 0 auto}
.table-note{padding:12px 20px 16px;font-size:13px;color:var(--text-muted)}

.prose > .data-table{
  display:block;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  max-width:100%;
  min-width:0;
}

/* ------------------------------------------------------------
   platform cards
   ------------------------------------------------------------ */
.platform-grid{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:16px;
}
.platform-card{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:12px;
  min-width:0;
  padding:22px 20px;
  border-radius:var(--r-card);
  background:var(--bg-panel);
  border:1px solid var(--border);
  box-shadow:inset 0 1px 0 var(--text-invert),0 16px 34px -28px var(--sh-neutral-10);
  transition:transform .22s,box-shadow .22s;
}
.platform-card:hover{transform:translateY(-4px);box-shadow:0 24px 44px -28px var(--sh-teal-12),inset 0 1px 0 var(--text-invert)}
.platform-ic{
  display:grid;
  place-items:center;
  width:44px;height:44px;
  border-radius:var(--r-node);
  background:var(--bg-panel2);
  color:var(--accent-dark);
  flex:0 0 auto;
}
.platform-ic svg{display:block;width:24px;height:24px}
.platform-card h3{font-size:16px;margin:0}
.platform-card .btn{margin-top:auto}

/* ------------------------------------------------------------
   article cards
   ------------------------------------------------------------ */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.post-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  min-width:0;
  padding:24px;
  border-radius:var(--r-card);
  background:var(--bg-panel);
  border:1px solid var(--border);
  box-shadow:inset 0 1px 0 var(--text-invert),0 18px 38px -30px var(--sh-neutral-10);
  text-decoration:none;
  transition:transform .22s,box-shadow .22s;
}
.post-card:hover{transform:translateY(-4px);box-shadow:0 28px 48px -30px var(--sh-accent-14),inset 0 1px 0 var(--text-invert)}
.post-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 12px;
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--text-muted);
}
.post-tag{
  display:inline-flex;
  align-items:center;
  min-height:24px;
  padding:3px 10px;
  border-radius:var(--r-pill);
  background:var(--accent-soft);
  color:var(--accent-dark);
  font-family:var(--font-body);
  font-size:12px;
  font-weight:700;
  max-width:100%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.post-card h3{font-size:17.5px;line-height:1.42}
.post-card p{margin:0;color:var(--text-muted);font-size:14.5px;line-height:1.68}
.post-more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;color:var(--accent-dark);font-weight:700;font-size:14px}

/* blog list hero (split-meta) */
.blog-hero{
  display:grid;
  grid-template-columns:minmax(0,3fr) minmax(0,1fr);
  gap:2.5rem;
  align-items:start;
  padding-top:52px;
  padding-bottom:36px;
}
.blog-hero h1{font-size:clamp(32px,4vw,48px)}
.blog-hero p{margin-top:16px;color:var(--text-muted);font-size:17px;max-width:640px}
.blog-meta-card{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:20px;
  border-radius:var(--r-card);
  background:var(--bg-panel);
  border:1px solid var(--border);
  box-shadow:inset 0 1px 0 var(--text-invert),0 18px 38px -30px var(--sh-accent-14);
}
.blog-meta-card .meta-row{display:flex;flex-direction:column;gap:3px}
.blog-meta-card .meta-key{font-family:var(--font-mono);font-size:11px;letter-spacing:.07em;color:var(--text-muted)}
.blog-meta-card .meta-val{font-size:14.5px;font-weight:700;color:var(--text)}
.blog-meta-card .meta-sep{height:1px;background:var(--border-soft)}

/* ------------------------------------------------------------
   callout
   ------------------------------------------------------------ */
.callout{
  display:block;
  padding:18px 22px;
  border-radius:var(--r-node);
  background:var(--bg-panel2);
  border-left:4px solid var(--accent);
  color:#2C3352;
  font-size:15px;
  line-height:1.75;
  margin:22px 0;
}
.callout p:last-child{margin-bottom:0}
.callout-title{
  display:block;
  margin-bottom:6px;
  font-weight:700;
  color:var(--accent-dark);
}
.callout--teal{background:var(--tint-teal-soft);border-left-color:var(--success)}
.callout--teal .callout-title{color:var(--success-dark)}
.callout--honey{background:var(--tint-honey-soft);border-left-color:var(--candy-honey-dark)}
.callout--honey .callout-title{color:var(--candy-honey-dark)}

/* ------------------------------------------------------------
   promo block (blog article end)
   ------------------------------------------------------------ */
.promo-block{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px 28px;
  margin:44px 0 0;
  padding:28px 30px;
  border-radius:var(--r-card-lg);
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);
  color:var(--text-invert);
  box-shadow:0 26px 50px -28px var(--sh-accent-28);
}
.promo-block h3{color:var(--text-invert);font-size:20px;margin:0 0 6px}
.promo-block p{margin:0;font-size:14.5px;color:rgba(255,255,255,.88);max-width:520px}
.promo-block .btn{
  background:var(--text-invert);
  color:var(--accent-dark);
  box-shadow:0 14px 26px -14px rgba(0,0,0,.35);
  flex-shrink:0;
  white-space:nowrap;
}
.promo-block .btn:hover{transform:translateY(-2px)}

/* ------------------------------------------------------------
   cta band
   ------------------------------------------------------------ */
.cta-band{
  position:relative;
  overflow-x:clip;
  border-radius:var(--r-card-lg);
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);
  color:var(--text-invert);
  padding:44px 40px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:22px 32px;
  box-shadow:0 30px 60px -34px var(--sh-accent-28);
}
.cta-band h2{color:var(--text-invert);font-size:clamp(24px,2.6vw,32px)}
.cta-band p{margin:8px 0 0;color:rgba(255,255,255,.86);font-size:15px;max-width:560px}
.cta-band .btn-main{background:var(--, #FFFFFF);color:var(--accent-dark);box-shadow:0 16px 30px -16px rgba(0,0,0,.35)}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.85);color:var(--text-invert);background:rgba(255,255,255,.12)}

/* ------------------------------------------------------------
   ticker band (motion layer target)
   ------------------------------------------------------------ */
.ticker-band{
  overflow:hidden;
  max-width:100%;
  border-top:1px solid var(--border-soft);
  border-bottom:1px solid var(--border-soft);
  background:var(--bg-panel);
  padding:14px 0;
}
.ticker-track{
  display:flex;
  align-items:center;
  gap:14px;
  width:max-content;
  will-change:transform;
}
.ticker-item{
  display:inline-flex;
  align-items:center;
  gap:9px;
  min-height:34px;
  padding:5px 16px;
  border-radius:var(--r-pill);
  background:var(--bg-panel2);
  border:1px solid var(--border-soft);
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--text);
  white-space:nowrap;
}
.ticker-item svg{display:block;flex:0 0 auto}
.ticker-static{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}

/* ------------------------------------------------------------
   counters (motion layer target)
   ------------------------------------------------------------ */
.counter{
  font-variant-numeric:tabular-nums;
  min-width:3.4ch;
  display:inline-block;
  text-align:right;
}
.counter-suffix{font-variant-numeric:tabular-nums}

/* ------------------------------------------------------------
   design-preview kit (used by design-preview.html only)
   ------------------------------------------------------------ */
.preview-section{padding-top:56px;padding-bottom:56px;border-top:1px solid var(--border-soft)}
.preview-section > h2{
  font-size:clamp(22px,2.4vw,30px);
  margin:0 0 8px;
}
.preview-section > .preview-note{
  margin:0 0 26px;
  color:var(--text-muted);
  font-size:15px;
  max-width:760px;
}
.swatch-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(190px,1fr));
  gap:16px;
}
.swatch{
  border-radius:var(--r-node);
  border:1px solid var(--border);
  background:var(--bg-panel);
  overflow:hidden;
  min-width:0;
}
.swatch-chip{height:64px;display:block}
.swatch-body{padding:12px 14px}
.swatch-name{display:block;font-size:13.5px;font-weight:700;color:var(--text)}
.swatch-var{
  display:block;
  margin-top:3px;
  font-family:var(--font-mono);
  font-size:11px;
  color:var(--text-muted);
  overflow-wrap:anywhere;
}
.type-sample{
  display:flex;
  flex-direction:column;
  gap:18px;
  padding:24px;
  border-radius:var(--r-card);
  background:var(--bg-panel);
  border:1px solid var(--border);
  min-width:0;
}
.type-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 18px;min-width:0}
.type-row .type-key{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--text-muted);
  min-width:132px;
}
.type-row .type-val{min-width:0;overflow-wrap:anywhere}
.preview-hero-static{position:relative;overflow-x:clip}
.preview-hero-static .hero-inner{position:relative;z-index:2}
.preview-note-list{display:flex;flex-direction:column;gap:8px;color:var(--text-muted);font-size:14.5px}
.preview-note-list li{display:flex;gap:9px;align-items:flex-start}
.preview-note-list svg{flex:0 0 auto;margin-top:4px;color:var(--success)}
.preview-inline-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;min-width:0}
.preview-stack{display:flex;flex-direction:column;gap:16px;min-width:0}

/* ------------------------------------------------------------
   responsive
   ------------------------------------------------------------ */
@media (max-width:1024px){
  .plan-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .platform-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .blog-hero{grid-template-columns:minmax(0,1fr)}
  .blog-meta-card{flex-direction:row;flex-wrap:wrap;gap:16px 28px}
  .blog-meta-card .meta-sep{display:none}
}
@media (max-width:768px){
  .plan-grid{grid-template-columns:minmax(0,1fr)}
  .platform-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-grid{grid-template-columns:minmax(0,1fr)}
  .tabs [role="tablist"]{width:100%;justify-content:flex-start;overflow-x:auto}
  .cta-band{padding:30px 22px}
  .promo-block{padding:24px 20px}
  .table-scroll{border-radius:var(--r-node)}
  .line-table{min-width:600px}
}
@media (max-width:640px){
  .platform-grid{grid-template-columns:minmax(0,1fr)}
  .plan-price .amount{font-size:38px}
  .cta-band .btn,.promo-block .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  .ticker-track{transform:none!important}
}