/* ==========================================================================
   TYBAK · Mercury Light — alpine clarity, single cobalt accent
   Light adaptation of the Mercury system: bright canvas, white cards,
   pill controls, cobalt reserved for the primary action.
   Palette: canvas #f4f4f8 · card #ffffff · ink #191924 · muted #5c5c68
            line #e5e7ee · onyx #171721 (dark moments) · cobalt #5266eb
   ========================================================================== */
:root{
  --color-canvas:#f4f4f8;--color-card:#ffffff;--color-card-soft:#eceef4;
  --color-onyx:#171721;--color-graphite:#ffffff;--color-obsidian:#e7e9f2;
  --color-ink:#191924;--color-ash:#5c5c68;--color-slate:#8a8a96;
  --color-line:#e5e7ee;--color-line-strong:#d3d6e2;
  --color-ivory:#191924;--color-mist:#e5e7ee;--color-cobalt:#5266eb;--color-white:#fff;
  --color-on-dark:#eceef4;--color-on-dark-muted:#b9b9c6;
  --font-body:'Inter',ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --font-display:var(--font-body);
  --w-regular:400;--w-medium:500;--w-emphasis:600;
  --page-max:1200px;--section-gap:72px;--card-padding:32px;--element-gap:12px;
  --radius-card:12px;--radius-pill:32px;--radius-pill-lg:40px;
  --primary-color:#5266eb;--secondary-color:#5266eb;
  --shadow-soft:0 1px 2px rgba(23,23,33,.05),0 4px 16px rgba(23,23,33,.05);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--color-canvas);color:var(--color-ink);
  font-family:var(--font-body);font-size:16px;line-height:1.5;font-weight:var(--w-regular);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:var(--w-emphasis);line-height:1.15;letter-spacing:.005em;color:var(--color-ink)}
p{margin:0 0 1em}
:focus-visible{outline:2px solid var(--color-cobalt);outline-offset:2px;border-radius:4px}
.shell{width:min(calc(100% - 48px),var(--page-max));margin-inline:auto}
.eyebrow{font-size:12px;font-weight:var(--w-medium);letter-spacing:.14em;text-transform:uppercase;color:var(--color-slate);margin:0 0 16px}
.lead{font-size:18px;line-height:1.45;color:var(--color-ash);max-width:640px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--color-cobalt);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:2000}
.skip-link:focus{left:0}

/* ---------- buttons & pills ---------- */
.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font:inherit;font-size:16px;font-weight:var(--w-regular);line-height:1;
  padding:15px 26px;border-radius:var(--radius-pill);border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;white-space:nowrap}
.button-primary{background:var(--color-cobalt);color:var(--color-white);box-shadow:0 2px 8px rgba(82,102,235,.28)}
.button-primary:hover{background:#4658d4}
.button-ghost{background:transparent;color:var(--color-ink);border-color:var(--color-ink)}
.button-ghost:hover{background:rgba(23,23,33,.05)}
.button-obsidian{background:var(--color-card-soft);color:var(--color-ink)}
.button-obsidian:hover{background:#e0e3ee}
.button-sm{padding:11px 20px;font-size:14px}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:var(--w-medium);
  color:var(--color-ink);border-bottom:1px solid var(--color-line-strong);padding-bottom:4px;transition:border-color .2s ease}
.text-link:hover{border-color:var(--color-ink)}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:var(--w-medium);
  letter-spacing:.1em;text-transform:uppercase;color:var(--color-ash);
  border:1px solid var(--color-line-strong);border-radius:var(--radius-pill-lg);padding:9px 16px;background:var(--color-card)}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:1100;background:rgba(255,255,255,.88);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--color-line)}
.announce{background:var(--color-onyx);font-size:12px;letter-spacing:.08em;color:var(--color-on-dark-muted);
  padding:9px 0;text-align:center}
.announce strong{color:var(--color-on-dark);font-weight:var(--w-medium)}
.nav-row{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:var(--radius-pill);
  background:var(--color-cobalt);color:#fff;font-size:13px;font-weight:var(--w-emphasis);letter-spacing:.04em}
.brand-name{font-size:17px;font-weight:var(--w-emphasis);letter-spacing:.14em;color:var(--color-ink)}
.brand-sub{display:block;font-size:10px;font-weight:var(--w-regular);letter-spacing:.18em;color:var(--color-slate);text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-item{position:static;display:flex;align-items:center;height:72px}
.nav-link{position:relative;display:inline-flex;align-items:center;gap:7px;padding:10px 15px;border-radius:var(--radius-pill-lg);
  font-size:15px;font-weight:var(--w-regular);color:var(--color-ink);transition:background .2s ease,color .2s ease}
.nav-link::after{content:"";position:absolute;left:15px;right:15px;bottom:6px;height:2px;border-radius:2px;
  background:var(--color-cobalt);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.nav-item:hover>.nav-link::after,.nav-item.is-open>.nav-link::after,.nav-item:focus-within>.nav-link::after{transform:scaleX(1)}
.nav-item:hover>.nav-link,.nav-item.is-open>.nav-link{background:var(--color-card-soft);color:var(--color-ink)}
.nav-item.is-current>.nav-link{font-weight:var(--w-medium)}
.nav-item.is-current>.nav-link::after{transform:scaleX(1)}
.nav-chevron{font-size:9px;color:var(--color-slate);transition:transform .2s ease}
.nav-item.is-open .nav-chevron{transform:rotate(180deg)}

/* ---------- dropdowns & mega (anchored to the sticky header, page-aligned) ---------- */
.dropdown,.mega{position:absolute;top:100%;left:50%;opacity:0;visibility:hidden;pointer-events:none;
  transform:translate(-50%,6px);
  transition:opacity .2s ease,transform .2s ease,visibility 0s linear .2s}
.nav-item:hover>.dropdown,.nav-item.is-open>.dropdown,.nav-item:focus-within>.dropdown,
.nav-item:hover>.mega,.nav-item.is-open>.mega,.nav-item:focus-within>.mega{
  opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);transition-delay:0s}
.dropdown{width:300px;
  background:var(--color-card);border:1px solid var(--color-line);border-radius:var(--radius-card);
  padding:10px;box-shadow:0 18px 48px rgba(23,23,33,.14)}
.dropdown::before,.mega::before{content:"";position:absolute;left:0;right:0;top:-6px;height:6px} /* hover bridge: no gap to lose the menu */
.dropdown a{display:flex;flex-direction:column;gap:3px;padding:11px 14px;border-radius:8px;font-size:14px;color:var(--color-ink);transition:background .15s ease}
.dropdown a:hover{background:var(--color-card-soft)}
.dropdown small{font-size:12px;color:var(--color-ash);line-height:1.4}
.dropdown .dropdown-heading{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--color-slate);padding:10px 14px 6px;margin:0}
.dropdown--wide{width:600px}
.dropdown-cols{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.dropdown-footer{border-top:1px solid var(--color-line);margin-top:8px;padding:12px 14px 6px}

/* ---------- mega menu (Trucks) ---------- */
.mega{width:min(920px,calc(100vw - 48px));
  background:var(--color-card);border:1px solid var(--color-line);border-radius:var(--radius-card);
  box-shadow:0 24px 64px rgba(23,23,33,.16)}
.mega-inner{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:380px}
.mega-families{background:var(--color-card-soft);border-right:1px solid var(--color-line);
  border-radius:var(--radius-card) 0 0 var(--radius-card);padding:14px 10px;display:flex;flex-direction:column;gap:2px}
.mega-heading{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--color-slate);padding:6px 12px 10px;margin:0}
.mega-family{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;text-align:left;
  font:inherit;font-size:14px;font-weight:var(--w-regular);color:var(--color-ink);
  background:transparent;border:none;border-radius:8px;padding:11px 12px;cursor:pointer;transition:background .15s ease,color .15s ease}
.mega-family:hover,.mega-family.is-active{background:var(--color-card);color:var(--color-ink);font-weight:var(--w-medium);
  box-shadow:0 1px 3px rgba(23,23,33,.08)}
.mega-family-arrow{font-size:12px;color:var(--color-slate);opacity:0;transition:opacity .15s ease}
.mega-family:hover .mega-family-arrow,.mega-family.is-active .mega-family-arrow{opacity:1}
.mega-family--all{color:var(--color-cobalt);margin-top:6px;border-top:1px solid var(--color-line);border-radius:0 0 0 0;padding-top:14px}
.mega-family--all:hover{background:transparent;color:#4658d4;font-weight:var(--w-medium);box-shadow:none}
.mega-panels{padding:20px 20px 22px}
.mega-panel[hidden]{display:none}
.mega-panel-head{margin-bottom:14px}
.mega-panel-title{display:inline-flex;flex-direction:column;gap:2px;font-size:17px;font-weight:var(--w-emphasis);color:var(--color-ink)}
.mega-panel-title small{font-size:12px;font-weight:var(--w-medium);color:var(--color-cobalt)}
.mega-panel-title:hover small{text-decoration:underline}
.mega-products{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.mega-product{display:flex;flex-direction:column;background:var(--color-card);border:1px solid var(--color-line);
  border-radius:10px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.mega-product:hover{border-color:var(--color-line-strong);box-shadow:var(--shadow-soft)}
.mega-product-img{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--color-card-soft)}
.mega-product-img img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.mega-product:hover .mega-product-img img{transform:scale(1.03)}
.mega-product-img--ph{display:grid;place-items:center;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--color-slate)}
.mega-product-body{display:flex;flex-direction:column;gap:5px;padding:13px 14px 14px}
.mega-product-body strong{font-size:15px;font-weight:var(--w-medium);color:var(--color-ink);line-height:1.3}
.mega-product-body em{font-style:normal;font-size:12.5px;line-height:1.5;color:var(--color-ash);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mega-product-cta{font-size:12.5px;font-weight:var(--w-medium);color:var(--color-cobalt);margin-top:2px}
.mega-empty{border:1px dashed var(--color-line-strong);border-radius:10px;padding:26px 22px;color:var(--color-ash);font-size:14px}
.mega-empty p{margin:0 0 10px}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;margin-left:auto;font:inherit;font-size:14px;color:var(--color-ink);
  background:transparent;border:1px solid var(--color-line-strong);border-radius:var(--radius-pill);padding:10px 18px;cursor:pointer}
.nav-close{display:none}

/* ---------- hero ---------- */
.hero{position:relative;min-height:min(76vh,720px);display:flex;align-items:flex-end;overflow:hidden;isolation:isolate}
.hero-media{position:absolute;inset:0;z-index:-2}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(23,23,33,.06) 0%,rgba(23,23,33,.08) 45%,rgba(23,23,33,.55) 78%,rgba(23,23,33,.82) 100%)}
.hero-inner{width:min(calc(100% - 48px),var(--page-max));margin-inline:auto;padding:140px 0 72px}
.hero-badge{margin-bottom:24px}
.hero-badge.badge{background:rgba(23,23,33,.42);color:#eceef4;border-color:rgba(255,255,255,.32);backdrop-filter:blur(4px)}
.hero h1{font-size:clamp(38px,5.4vw,64px);line-height:1.08;letter-spacing:.005em;color:#fff;max-width:780px;margin-bottom:20px}
.hero .lead{font-size:clamp(17px,1.6vw,20px);color:#d9dbe6;max-width:640px;margin-bottom:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero .button-ghost{color:#fff;border-color:rgba(255,255,255,.75)}
.hero .button-ghost:hover{background:rgba(255,255,255,.12)}
.hero-stats{display:flex;flex-wrap:wrap;gap:clamp(24px,5vw,72px);margin-top:56px;padding-top:28px;border-top:1px solid rgba(255,255,255,.28)}
.hero-stats div{display:flex;flex-direction:column;gap:4px}
.hero-stats strong{font-size:clamp(22px,2.6vw,30px);font-weight:var(--w-emphasis);color:#fff;line-height:1.1}
.hero-stats span{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:#c3c6d4}

/* ---------- signal strip ---------- */
.signal-strip{background:var(--color-card);border-bottom:1px solid var(--color-line)}
.signal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:26px 0}
.signal-grid div{display:flex;align-items:center;gap:14px;font-size:14px;color:var(--color-ash)}
.signal-grid span{font-size:11px;letter-spacing:.12em;color:var(--color-slate)}
.signal-grid strong{display:block;color:var(--color-ink);font-weight:var(--w-medium);font-size:14px}

/* ---------- sections ---------- */
.section{padding:var(--section-gap) 0}
.section-head{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:32px;align-items:end;margin-bottom:48px}
.section-head h2,.band h2{font-size:clamp(28px,3.6vw,42px);line-height:1.12;letter-spacing:.005em;color:var(--color-ink)}
.section-head .lead{font-size:16px}
.section-more{justify-self:end}

/* cards */
.card-grid{display:grid;gap:20px}
.card-grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card-grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card-grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{display:flex;flex-direction:column;gap:0;background:var(--color-card);
  border-radius:var(--radius-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
  border:1px solid var(--color-line);box-shadow:var(--shadow-soft)}
.card:hover{border-color:var(--color-line-strong);box-shadow:0 2px 4px rgba(23,23,33,.06),0 12px 32px rgba(23,23,33,.1)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--color-card-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-index{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--color-slate)}
.card-body h3{font-size:21px}
.card-body p{font-size:14px;line-height:1.55;color:var(--color-ash);margin:0;flex:1}
.card-link{font-size:13px;font-weight:var(--w-medium);color:var(--color-ink);display:inline-flex;gap:8px;align-items:center;margin-top:6px}
.card:hover .card-link{color:var(--color-cobalt)}
.card-link::after{content:"→";transition:transform .2s ease}
.card:hover .card-link::after{transform:translateX(3px)}

/* link-tile list */
.tile-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.tile{display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:var(--color-card);border:1px solid var(--color-line);border-radius:var(--radius-card);
  padding:20px 24px;transition:border-color .2s ease,box-shadow .2s ease}
.tile:hover{border-color:var(--color-cobalt);box-shadow:var(--shadow-soft)}
.tile div{display:flex;flex-direction:column;gap:4px}
.tile strong{font-size:16px;font-weight:var(--w-medium)}
.tile span{font-size:13px;color:var(--color-ash)}
.tile::after{content:"→";color:var(--color-slate);flex-shrink:0}
.tile:hover::after{color:var(--color-cobalt)}

/* ---------- light band (was graphite) ---------- */
.band{background:var(--color-card);border:1px solid var(--color-line);border-radius:var(--radius-card);padding:clamp(32px,5vw,56px)}
.band-split{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,5vw,72px);align-items:center}
.band p{color:var(--color-ash)}
.band-checklist{display:grid;gap:14px;margin:0;list-style:none}
.band-checklist li{display:flex;gap:12px;font-size:15px;color:var(--color-ink);line-height:1.45}
.band-checklist li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--color-cobalt);flex-shrink:0;margin-top:7px}

/* ---------- CTA band (dark moment) ---------- */
.cta-band{background:var(--color-onyx);border-radius:var(--radius-card);
  padding:clamp(36px,5vw,56px);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-band h2{font-size:clamp(24px,3vw,34px);color:#fff;max-width:560px}
.cta-band .lead{margin:12px 0 0;font-size:16px;color:var(--color-on-dark-muted)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-actions .button-ghost{color:#fff;border-color:rgba(255,255,255,.7)}
.cta-actions .button-ghost:hover{background:rgba(255,255,255,.1)}

/* contact channels */
.channel-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:20px}
.channel{display:inline-flex;align-items:center;gap:10px;background:var(--color-obsidian);
  border-radius:var(--radius-pill);padding:12px 22px;font-size:14px;color:var(--color-ink);
  border:1px solid transparent;transition:border-color .2s ease}
.channel:hover{border-color:var(--color-cobalt)}
.channel strong{font-weight:var(--w-medium)}

/* ---------- page (list/detail headers) ---------- */
.page-hero{padding:64px 0 40px;border-bottom:1px solid var(--color-line)}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--color-slate);margin-bottom:20px}
.breadcrumb a{color:var(--color-ash)}
.breadcrumb a:hover{color:var(--color-ink)}
.breadcrumb span[aria-current]{color:var(--color-ink)}
.page-hero h1{font-size:clamp(32px,4.4vw,52px);max-width:820px;margin-bottom:16px}
.page-hero .lead{font-size:17px;margin-bottom:0}
.page-body{padding:48px 0 var(--section-gap)}

/* ---------- list layouts ---------- */
.content-list{display:grid;gap:20px}
.row-card{display:grid;grid-template-columns:300px minmax(0,1fr);gap:0;background:var(--color-card);
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--color-line);box-shadow:var(--shadow-soft);
  transition:border-color .2s ease,box-shadow .2s ease}
.row-card:hover{border-color:var(--color-line-strong);box-shadow:0 2px 4px rgba(23,23,33,.06),0 12px 32px rgba(23,23,33,.1)}
.row-card .card-media{aspect-ratio:auto;min-height:100%}
.row-body{padding:24px 28px;display:flex;flex-direction:column;gap:10px}
.row-body .meta{display:flex;flex-wrap:wrap;gap:14px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--color-slate)}
.row-body h2{font-size:22px}
.row-body p{font-size:14px;color:var(--color-ash);margin:0}
.grid-card .card-body h2{font-size:20px}
.grid-card time{font-size:12px;letter-spacing:.08em;color:var(--color-slate);text-transform:uppercase}
.pagination{display:flex;align-items:center;gap:10px;margin-top:40px;flex-wrap:wrap}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:44px;padding:0 16px;border-radius:var(--radius-pill);
  font-size:14px;border:1px solid var(--color-line-strong);background:var(--color-card);color:var(--color-ink)}
.pagination a:hover{border-color:var(--color-ink)}
.pagination span[aria-current],.pagination .pg-current{background:var(--color-cobalt);border-color:var(--color-cobalt);color:#fff}
.pagination .pg-info{border:none;background:transparent;color:var(--color-ash);pointer-events:none}
.empty-state{background:var(--color-card);border:1px dashed var(--color-line-strong);border-radius:var(--radius-card);
  padding:48px 32px;text-align:center;color:var(--color-ash)}

/* ---------- detail layout ---------- */
.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:48px;align-items:start}
.detail-main{min-width:0}
.detail-image{border-radius:var(--radius-card);overflow:hidden;background:var(--color-card-soft);margin-bottom:32px}
.detail-image img{width:100%;max-height:560px;object-fit:cover}
.spec-table{width:100%;border-collapse:collapse;background:var(--color-card);border:1px solid var(--color-line);border-radius:var(--radius-card);overflow:hidden;margin:0 0 32px;font-size:14px}
.spec-table caption{text-align:left;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--color-slate);padding:0 0 12px}
.spec-table th,.spec-table td{text-align:left;padding:13px 20px;border-bottom:1px solid var(--color-line);vertical-align:top}
.spec-table th{color:var(--color-ash);font-weight:var(--w-regular);width:44%}
.spec-table td{color:var(--color-ink);font-weight:var(--w-medium)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}
.rich-content{font-size:16px;line-height:1.65;color:var(--color-ink)}
.rich-content h2{font-size:28px;margin:40px 0 14px}
.rich-content h3{font-size:21px;margin:32px 0 12px}
.rich-content h4{font-size:17px;margin:24px 0 10px}
.rich-content p{color:var(--color-ash)}
.rich-content ul,.rich-content ol{margin:0 0 20px;padding-left:22px;color:var(--color-ash)}
.rich-content li{margin:7px 0}
.rich-content a{color:#4658d4;border-bottom:1px solid rgba(70,88,212,.35)}
.rich-content a:hover{color:#37479f;border-color:#37479f}
.rich-content img{border-radius:var(--radius-card);margin:16px 0}
.rich-content table{width:100%;border-collapse:collapse;background:var(--color-card);border:1px solid var(--color-line);border-radius:var(--radius-card);overflow:hidden;font-size:14px;margin:20px 0}
.rich-content th,.rich-content td{text-align:left;padding:12px 18px;border-bottom:1px solid var(--color-line)}
.rich-content th{color:var(--color-ash);font-weight:var(--w-medium)}
.rich-content tr:last-child th,.rich-content tr:last-child td{border-bottom:none}
.rich-content blockquote{margin:24px 0;padding:18px 24px;border-left:3px solid var(--color-cobalt);background:var(--color-card);border-radius:0 var(--radius-card) var(--radius-card) 0;color:var(--color-ash)}
.rich-content blockquote p{margin:0}
.rich-content code{background:var(--color-card-soft);border-radius:6px;padding:2px 7px;font-size:.9em}

/* sidebar */
.side-panel{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.quote-card{background:var(--color-card);border:1px solid var(--color-line);border-radius:var(--radius-card);padding:28px;display:flex;flex-direction:column;gap:14px;box-shadow:var(--shadow-soft)}
.quote-card h2{font-size:22px}
.quote-card p{font-size:14px;color:var(--color-ash);margin:0}
.quote-card .button{width:100%}
.side-note{background:var(--color-card);border:1px solid var(--color-line);border-radius:var(--radius-card);padding:24px 28px;font-size:13px;color:var(--color-ash)}
.side-note strong{display:block;color:var(--color-ink);font-size:15px;margin-bottom:8px}
.side-links{display:grid;gap:10px}
.side-links a{font-size:14px;color:var(--color-ink);display:flex;justify-content:space-between;gap:12px}
.side-links a::after{content:"→";color:var(--color-slate)}
.side-links a:hover{color:var(--color-cobalt)}

/* article meta */
.detail-meta{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--color-slate);margin:0 0 24px}
.detail-meta time{text-transform:uppercase;letter-spacing:.08em}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.tag-row a,.tag-row span{font-size:12px;letter-spacing:.06em;color:var(--color-ash);
  border:1px solid var(--color-line-strong);border-radius:var(--radius-pill);padding:7px 15px;background:var(--color-card)}
.tag-row a:hover{color:var(--color-ink);border-color:var(--color-ink)}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:48px}
.prev-next a{display:flex;flex-direction:column;gap:6px;background:var(--color-card);
  border:1px solid var(--color-line);border-radius:var(--radius-card);padding:20px 24px}
.prev-next a:last-child{text-align:right;align-items:flex-end}
.prev-next small{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--color-slate)}
.prev-next strong{font-size:15px;color:var(--color-ink);font-weight:var(--w-medium)}

/* ---------- message form (host styling for fixed component) ---------- */
.message-form-wrap{--primary-color:#5266eb;--secondary-color:#5266eb;background:var(--color-card);
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--color-line);box-shadow:var(--shadow-soft)}
.message-form-wrap form{padding:28px;display:grid;gap:18px}
.message-form-wrap .form-group{display:grid;gap:7px}
.message-form-wrap label{font-size:13px;font-weight:var(--w-medium);color:var(--color-ink)}
.message-form-wrap .text-red-500{color:#d64550}
.message-form-wrap input[type=text],.message-form-wrap input[type=email],.message-form-wrap input[type=tel],
.message-form-wrap textarea{width:100%;font:inherit;font-size:15px;color:var(--color-ink);
  background:var(--color-canvas);border:1px solid var(--color-line-strong);border-radius:10px;padding:13px 16px;
  transition:border-color .2s ease}
.message-form-wrap input:focus,.message-form-wrap textarea:focus{outline:none;border-color:var(--color-cobalt)}
.message-form-wrap input::placeholder,.message-form-wrap textarea::placeholder{color:var(--color-slate)}
.message-form-wrap textarea{min-height:120px;resize:vertical}
.message-form-wrap .submit-btn{font:inherit;font-size:16px;font-weight:var(--w-medium);cursor:pointer;
  background:var(--color-cobalt);color:#fff;border:none;border-radius:var(--radius-pill);padding:15px 26px;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;transition:background .2s ease;width:100%;
  box-shadow:0 2px 8px rgba(82,102,235,.28)}
.message-form-wrap .submit-btn:hover{background:#4658d4}
.message-form-wrap .submit-btn:disabled{opacity:.6;cursor:wait}
.message-form-wrap .bg-gray-50{background:var(--color-card-soft);border-bottom:1px solid var(--color-line);padding:22px 28px}
.message-form-wrap .text-lg{font-size:19px}
.message-form-wrap .font-semibold{font-weight:var(--w-emphasis)}
.message-form-wrap .text-gray-900{color:var(--color-ink)}
.message-form-wrap svg{color:var(--color-cobalt)}
#messageStatus.hidden{display:none}
#messageStatus{background:#e8f6ec;border:1px solid #bfe5ca;color:#256b39;border-radius:10px}
#messageStatus.p-4{padding:12px 16px}

/* ---------- single page ---------- */
.single-wrap{max-width:860px}
.single-wrap .rich-content{margin-top:8px}

/* ---------- footer (dark anchor) ---------- */
.site-footer{border-top:1px solid var(--color-line);padding:64px 0 28px;background:var(--color-onyx)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-grid p{font-size:14px;color:var(--color-on-dark-muted);max-width:320px}
.footer-label{font-size:11px;font-weight:var(--w-medium);letter-spacing:.14em;text-transform:uppercase;color:#7d7d8c;margin-bottom:16px}
.footer-grid nav{display:grid;gap:10px}
.footer-grid nav a{font-size:14px;color:var(--color-on-dark-muted);transition:color .2s ease}
.footer-grid nav a:hover{color:#fff}
.footer-contact{display:grid;gap:8px;font-size:14px;color:var(--color-on-dark-muted)}
.footer-contact a{color:var(--color-on-dark)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:56px;
  padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:12px;color:#8a8a99}
.disclaimer{font-size:12px;line-height:1.6;color:#8a8a99;max-width:820px;margin-top:20px}

/* ---------- error pages ---------- */
.error-wrap{min-height:70vh;display:grid;place-items:center;text-align:center;padding:80px 24px}
.error-wrap h1{font-size:clamp(56px,10vw,96px)}
.error-wrap p{color:var(--color-ash);max-width:480px;margin:16px auto 32px}

/* ---------- responsive ---------- */
@media(max-width:1080px){
  .card-grid.cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .detail-layout{grid-template-columns:1fr}
  .side-panel{position:static}
  .band-split{grid-template-columns:1fr}
  .section-head{grid-template-columns:1fr;align-items:start}
  .section-more{justify-self:start}
  .tile-grid{grid-template-columns:1fr}
}
@media(max-width:800px){
  :root{--section-gap:48px;--card-padding:24px}
  .shell{width:min(calc(100% - 32px),var(--page-max))}
  .hero{min-height:620px}
  .hero-inner{padding:120px 0 48px}
  .hero-stats{gap:20px 28px}
  .nav-toggle{display:inline-flex;align-items:center;gap:8px}
  .nav-cta{display:none}
  .main-nav{display:none;position:fixed;inset:0;top:0;z-index:1200;background:var(--color-canvas);
    padding:76px 20px 40px;overflow:auto;flex-direction:column;align-items:stretch;gap:0}
  .main-nav.is-open{display:flex}
  .nav-item{height:auto;display:block;border-bottom:1px solid var(--color-line)}
  .nav-link{width:100%;justify-content:space-between;padding:18px 4px;font-size:17px;border-radius:0;min-height:56px}
  .nav-link::after{display:none}
  .nav-item.is-current>.nav-link{color:var(--color-ink);font-weight:var(--w-medium)}
  /* panels become accordions inside the flow */
  .dropdown,.mega{position:static;opacity:1;visibility:visible;pointer-events:auto;transform:none;
    display:none;width:auto;box-shadow:none;border:none;border-radius:0;
    transition:none;padding:0;margin:0;background:transparent}
  .nav-item.is-open>.dropdown,.nav-item.is-open>.mega{display:block}
  .dropdown::before,.mega::before{display:none}
  .dropdown-cols{grid-template-columns:1fr}
  .dropdown-heading{padding:12px 4px 4px}
  .dropdown a{padding:13px 4px;border-radius:0;border-bottom:1px solid var(--color-line)}
  .dropdown-footer{border-top:none;padding:10px 4px}
  .mega-inner{grid-template-columns:1fr;min-height:0}
  .mega-families{background:transparent;border-right:none;border-radius:0;padding:4px 0}
  .mega-family{padding:14px 4px;border-radius:0;border-bottom:1px solid var(--color-line)}
  .mega-family:hover,.mega-family.is-active{background:transparent;box-shadow:none}
  .mega-family-arrow{display:none}
  .mega-family--all{border-top:none;padding-top:8px}
  .mega-panels{padding:8px 0 12px;border-top:1px solid var(--color-line)}
  .mega-panel[hidden]{display:none}
  .mega-panel:not([hidden]){display:block}
  .mega-panel-head{padding:8px 4px 0}
  .mega-products{grid-template-columns:1fr;gap:12px;padding:8px 0}
  .mega-product{flex-direction:row;align-items:stretch}
  .mega-product-img{aspect-ratio:auto;width:132px;flex-shrink:0}
  .mega-product-body{padding:12px 14px}
  .mega-empty{margin:8px 0}
  .nav-close{display:inline-flex;position:absolute;top:20px;right:24px;font:inherit;font-size:14px;color:var(--color-ash);
    background:transparent;border:1px solid var(--color-line-strong);border-radius:var(--radius-pill);padding:9px 18px;cursor:pointer}
  .signal-grid{grid-template-columns:1fr;gap:14px;padding:20px 0}
  .card-grid.cols-4,.card-grid.cols-3,.card-grid.cols-2{grid-template-columns:1fr}
  .row-card{grid-template-columns:1fr}
  .row-card .card-media{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .prev-next{grid-template-columns:1fr}
  .nav-open{overflow:hidden}
}
@media (hover:none){
  /* touch devices: panels only open via .is-open (tap), never via :hover */
  .nav-item:hover>.dropdown,.nav-item:hover>.mega{opacity:0;visibility:hidden;pointer-events:none;transform:translate(-50%,6px)}
  .nav-item.is-open>.dropdown,.nav-item.is-open>.mega{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
}
@media(max-width:800px){
  /* responsive tables: wrapper scrolls, inner table keeps readable min width */
  .spec-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .spec-scroll .spec-table{min-width:560px;margin-bottom:32px}
  .rich-content table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .rich-content table th,.rich-content table td{white-space:normal}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto}
}