/* ==========================================================================
   VPNAK — components.css
   Cross-page components: tabs, toc, faq, plan cards, line table,
   platform cards, article cards, callout, promo block, cta band,
   plus the design-preview sample classes.
   ========================================================================== */

/* ---- tabs ---- */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.tabs[role="tablist"]{
  display:inline-flex;flex-wrap:wrap;gap:6px;padding:5px;
  background:var(--bg-panel2);border:1px solid var(--border);
  border-radius:var(--radius-pill);
}
.tabs [role="tab"]{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 20px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:600;color:var(--muted);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.tabs [role="tab"]:hover{color:var(--accent)}
.tabs [role="tab"][aria-selected="true"]{
  background:var(--bg-panel);color:var(--accent);
  box-shadow:0 6px 16px -10px var(--shadow-tint-strong);
}
.tab-panel{display:none}
.tab-panel.is-active{display:block}

/* ---- toc (long doc sticky chapter nav) ---- */
.toc-tabs{
  position:sticky;top:64px;z-index:20;
  display:flex;gap:6px;overflow-x:auto;-webkit-overflow-scrolling:touch;
  padding:8px 0;margin-bottom:28px;
  background:linear-gradient(180deg,var(--bg) 70%,rgba(247,240,227,0));
  scrollbar-width:thin;
}
.toc-tabs a{
  display:inline-flex;align-items:center;white-space:nowrap;
  min-height:34px;padding:0 14px;border-radius:var(--radius-pill);
  border:1px solid var(--border);background:var(--bg-panel);
  font-size:13px;font-weight:600;color:var(--muted);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.toc-tabs a:hover{color:var(--accent);border-color:var(--accent)}
.toc-tabs a.is-current{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.toc-tabs.is-static{position:static}
body:has(.toc-tabs) section[id]{scroll-margin-top:132px}

/* ---- faq ---- */
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{
  background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius-sm);
  box-shadow:0 12px 30px -22px var(--shadow-tint),inset 0 1px 0 var(--highlight);
  overflow:hidden;
}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;cursor:pointer;
  font-family:var(--font-display);font-size:16px;font-weight:700;color:var(--text);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex-shrink:0;width:9px;height:9px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(45deg);transition:transform .2s ease;margin-top:-4px;
}
.faq-item[open] summary{font-weight:700}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:4px}
.faq-body{padding:0 20px 18px;color:var(--muted);font-size:14.5px;line-height:1.75}
.faq-body p+p{margin-top:10px}

/* ---- plan cards ---- */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:start}
.plan-card{
  position:relative;display:flex;flex-direction:column;gap:14px;
  padding:26px 24px 24px;
  background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius-md);
  box-shadow:0 20px 44px -26px var(--shadow-tint),inset 0 1px 0 var(--highlight);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  min-width:0;
}
.plan-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;border-radius:var(--radius-md) var(--radius-md) 0 0;
  background:linear-gradient(90deg,var(--apricot),var(--accent));
  opacity:.85;
}
.plan-card.is-best{
  border-color:var(--accent);
  box-shadow:0 26px 52px -24px var(--shadow-tint-strong),inset 0 1px 0 var(--highlight);
}
.plan-card.is-current{border-color:var(--accent);background:linear-gradient(180deg,var(--bg-panel) 0%,rgba(182,47,176,.06) 100%)}
.plan-badge{
  position:absolute;top:-12px;left:22px;
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:linear-gradient(120deg,var(--accent),var(--accent-dark));
  color:var(--white);font-size:11.5px;font-weight:700;letter-spacing:.03em;
  box-shadow:0 10px 22px -12px var(--shadow-tint-strong);
}
.plan-name{font-family:var(--font-display);font-size:17px;font-weight:800}
.plan-price{display:flex;align-items:baseline;gap:6px;font-family:var(--font-display);font-weight:900;letter-spacing:-.03em}
.plan-price .num{font-size:40px;line-height:1}
.plan-price .cur{font-size:20px;font-weight:800;color:var(--accent)}
.plan-price .per{font-size:13.5px;font-weight:600;color:var(--muted);letter-spacing:0}
.plan-data{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:700;color:var(--accent)}
.plan-feats{display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:var(--muted);margin-top:2px}
.plan-feats li{display:flex;align-items:flex-start;gap:8px;line-height:1.55}
.plan-feats svg{width:15px;height:15px;flex-shrink:0;margin-top:3px;color:var(--success)}
.plan-card .btn{margin-top:auto}
.plan-note{font-size:12px;color:var(--muted);text-align:center}

/* ---- traffic pack row ---- */
.pack-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.pack-card{
  display:flex;flex-direction:column;gap:8px;padding:20px 20px 18px;
  background:var(--bg-panel2);border:1px solid var(--border);border-radius:var(--radius-sm);
  min-width:0;
}
.pack-card .pk-vol{font-family:var(--font-display);font-size:22px;font-weight:800;letter-spacing:-.02em}
.pack-card .pk-price{font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--accent)}
.pack-card .pk-note{font-size:12.5px;color:var(--muted)}

/* ---- wide table with its own scroll wrapper ---- */
.table-scroll{
  width:100%;max-width:100%;min-width:0;
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  background:var(--bg-panel);
}
.table-scroll table{width:100%;min-width:640px;border-collapse:collapse;font-size:13.5px}
.table-scroll th,.table-scroll td{
  padding:12px 14px;text-align:left;border-bottom:1px solid var(--border);
  color:var(--text);word-break:keep-all;
}
.table-scroll th{
  font-family:var(--font-display);font-size:12px;font-weight:700;letter-spacing:.05em;
  color:var(--text);background:var(--bg-panel2);white-space:nowrap;
}
.table-scroll tbody tr:last-child td{border-bottom:0}
.table-scroll tbody td{border-bottom:0}
.table-scroll td.num{font-family:var(--font-mono);font-weight:600}
.table-scroll .cell-flag{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.table-scroll .cell-flag svg{width:18px;height:18px;flex-shrink:0;display:block;border-radius:50;border-radius:50%;box-shadow:0 0 0 1px var(--border)}
.prose > .data-table{
  display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;
  max-width:100%;min-width:0;
}
.prose table{width:100%;min-width:560px;border-collapse:collapse;font-size:13.5px}
.prose th,.prose td{padding:10px 12px;border:1px solid var(--border);text-align:left;word-break:keep-all}
.prose th{background:var(--bg-panel2);font-weight:700;white-space:nowrap}

/* ---- platform cards ---- */
.plat-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.plat-card{
  display:flex;flex-direction:column;align-items:flex-start;gap:12px;
  padding:20px 18px;background:var(--bg-panel);border:1px solid var(--border);
  border-radius:var(--radius-sm);min-width:0;
  box-shadow:0 16px 36px -24px var(--shadow-tint),inset 0 1px 0 var(--highlight);
  transition:transform .18s ease,box-shadow .18s ease;
}
.plat-card:hover{transform:translateY(-2px);box-shadow:0 22px 44px -22px var(--shadow-tint-strong),inset 0 1px 0 var(--highlight)}
.plat-icon{
  width:44px;height:44px;flex-shrink:0;border-radius:var(--radius-sm);
  display:grid;place-items:center;
  background:var(--white);border:1px solid var(--border);color:var(--accent);
  box-shadow:0 8px 18px -10px var(--shadow-tint);
}
.plat-icon svg{width:24px;height:24px;display:block}
.plat-name{font-family:var(--font-display);font-size:15px;font-weight:800}
.plat-note{font-size:12.5px;color:var(--muted);line-height:1.55}
.plat-card .btn{margin-top:auto}

/* ---- article cards ---- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-card{
  display:flex;flex-direction:column;gap:12px;padding:22px 22px 20px;
  background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius-md);
  min-width:0;
  box-shadow:0 18px 40px -26px var(--shadow-tint),inset 0 1px 0 var(--highlight);
  transition:transform .18s ease,box-shadow .18s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:0 26px 50px -24px var(--shadow-tint-strong),inset 0 1px 0 var(--highlight)}
.post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.post-meta time{font-family:var(--font-mono);font-weight:600}
.post-card h3{font-size:17px;line-height:1.45;letter-spacing:-.015em}
.post-card p{font-size:13.5px;color:var(--muted);line-height:1.65}
.post-more{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:700;color:var(--accent)}
.post-more svg{width:14px;height:14px;display:block;flex-shrink:0}

/* ---- callout ---- */
.callout{
  display:flex;gap:14px;padding:16px 18px;
  border-left:3px solid var(--accent);
  background:var(--accent-8);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:14px;line-height:1.7;color:var(--text);
}
.callout svg{width:18px;height:18px;flex-shrink:0;margin-top:3px;color:var(--accent)}
.callout p+p{margin-top:8px}
.callout.warn{border-left-color:var(--warn);background:rgba(201,138,27,.08)}
.callout.warn svg{color:var(--warn)}

/* ---- promo block (blog article tail) ---- */
.promo-block{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 24px;margin-top:36px;
  background:linear-gradient(120deg,rgba(240,145,58,.10) 0%,rgba(182,47,176,.10) 52%,rgba(59,108,232,.10) 100%);
  border:1px solid var(--border);border-radius:var(--radius-md);
  min-width:0;
}
.promo-block .pb-txt{min-width:0}
.promo-block .pb-brand{font-family:var(--font-display);font-size:17px;font-weight:800;letter-spacing:-.02em}
.promo-block .pb-line{font-size:13.5px;color:var(--muted);margin-top:4px}
.promo-block .btn{flex-shrink:0;white-space:nowrap}

/* ---- bottom cta band ---- */
.cta-band{
  position:relative;overflow-x:clip;
  background:var(--footer-bg);color:var(--footer-text);
  border-radius:var(--radius-lg);
  padding:40px 36px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  background-image:linear-gradient(120deg,rgba(240,145,58,.20) 0%,rgba(182,47,176,.22) 50%,rgba(59,108,232,.20) 100%);
  background-blend-mode:screen;
}
.cta-band h2{color:var(--footer-text);font-size:clamp(22px,2.6vw,30px);margin-bottom:8px}
.cta-band p{color:var(--footer-muted);font-size:14.5px;max-width:560px}
.cta-band .btn-primary{background:var(--bg-panel);color:var(--text)}
.cta-band .btn-primary:hover{box-shadow:0 20px 34px -14px rgba(0,0,0,.4)}

/* ---- stat band ---- */
.stat-band{
  display:flex;flex-wrap:wrap;justify-content:center;gap:14px 40px;
  padding:18px 22px;border:1px solid var(--border);border-radius:var(--radius-pill);
  background:var(--bg-panel);
  box-shadow:0 16px 36px -26px var(--shadow-tint),inset 0 1px 0 var(--highlight);
}
.stat-band li{display:inline-flex;align-items:baseline;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap}
.stat-band .mono{font-size:15px;color:var(--text)}

/* ---- feature bento (candy workbench) ---- */
.bento{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.bento-cell{
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;gap:12px;
  padding:26px 24px 22px;
  background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius-sm);
  min-width:0;
  box-shadow:0 20px 44px -26px var(--shadow-tint),inset 0 1px 0 var(--highlight);
  transition:transform .18s ease,box-shadow .18s ease;
}
.bento-cell:hover{transform:translateY(-2px);box-shadow:0 26px 52px -24px var(--shadow-tint-strong),inset 0 1px 0 var(--highlight)}
.bento-cell::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:linear-gradient(90deg,var(--apricot),var(--accent))}
.bento-cell.tone-b::before{background:linear-gradient(90deg,var(--accent),var(--cobalt))}
.bento-cell.tone-c::before{background:linear-gradient(90deg,var(--cobalt),var(--apricot))}
.bento-cell.span-2{grid-column:span 2}
.bento-cell.row-2{grid-row:span 2}
.bento-ic{
  width:40px;height:40px;flex-shrink:0;border-radius:var(--radius-sm);
  display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);
}
.bento-ic svg{width:20px;height:20px;display:block}
.bento-cell h3{font-size:20px;font-weight:800;letter-spacing:-.02em}
.bento-cell p{font-size:14px;line-height:1.75;color:var(--muted)}
.bento-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.mini-ui{
  display:flex;flex-direction:column;gap:6px;
  padding:10px 12px;border-radius:var(--radius-sm);
  background:var(--bg-panel2);border:1px solid var(--border);
  font-size:12px;color:var(--muted);min-width:0;
}
.mini-ui .mu-row{display:flex;align-items:center;justify-content:space-between;gap:10px;white-space:nowrap}
.mini-ui .mu-row b{color:var(--text);font-weight:700}

/* ---- misc utility ---- */
.hr-soft{height:1px;background:var(--border);border:0;margin:28px 0}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--accent)}
.link-more svg{width:15px;height:15px;display:block;flex-shrink:0}
.link-underline{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.center-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:28px}

/* ---- responsive ---- */
@media (max-width:1024px){
  .plan-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
  .plat-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .bento{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bento-cell.span-2{grid-column:span 2}
  .bento-cell.row-2{grid-row:span 1}
}
@media (max-width:768px){
  .plan-grid{grid-template-columns:1fr;gap:22px}
  .pack-row{grid-template-columns:1fr}
  .plat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-grid{grid-template-columns:1fr}
  .tabs[role="tablist"]{display:flex;width:100%;border-radius:var(--radius-md)}
  .tabs [role="tab"]{flex:1 1 auto;padding:0 14px}
  .cta-band{padding:30px 22px;border-radius:var(--radius-md)}
  .toc-tabs{top:64px}
}
@media (max-width:640px){
  .bento{grid-template-columns:1fr}
  .bento-cell.span-2{grid-column:span 1}
  .promo-block{flex-direction:column;align-items:flex-start}
  .promo-block .btn{width:100%}
}

/* ==========================================================================
   design-preview.html sample-only classes
   ========================================================================== */
.pv-sec{padding-top:56px;padding-bottom:56px;border-top:1px solid var(--border)}
.pv-sec:first-of-type{border-top:0}
.pv-sec-head{max-width:760px;margin-bottom:28px}
.pv-sec-head h2{font-size:26px;margin-bottom:8px}
.pv-sec-head p{font-size:14px;color:var(--muted)}
.pv-label{font-family:var(--font-mono);font-size:11.5px;font-weight:600;color:var(--muted);letter-spacing:.04em;margin-bottom:14px}
.pv-swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px}
.pv-swatch{
  display:flex;flex-direction:column;gap:8px;padding:12px;
  background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius-sm);min-width:0;
}
.pv-chip{height:52px;border-radius:8px;border:1px solid var(--border)}
.pv-var{font-family:var(--font-mono);font-size:11.5px;font-weight:600;color:var(--text);overflow-wrap:anywhere}
.pv-hex{font-family:var(--font-mono);font-size:11px;color:var(--muted)}
.pv-type-row{display:flex;flex-direction:column;gap:18px}
.pv-type-item{display:grid;grid-template-columns:150px 1fr;gap:20px;align-items:baseline;padding-bottom:16px;border-bottom:1px dashed var(--border)}
.pv-type-item:last-child{border-bottom:0}
.pv-type-key{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);font-weight:600}
.pv-btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.pv-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.pv-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.pv-box{padding:20px;background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius-sm);min-width:0}
.pv-box h3{font-size:15px;margin-bottom:10px}
.pv-code{font-family:var(--font-mono);font-size:12px;color:var(--muted);overflow-wrap:anywhere}
.pv-foot-note{font-size:12.5px;color:var(--muted);margin-top:10px}
@media (max-width:900px){
  .pv-grid-3{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .pv-grid-2,.pv-grid-3{grid-template-columns:1fr}
  .pv-type-item{grid-template-columns:1fr;gap:6px}
}