/* ============================================================
   CLOWDSECOPS — Commercial Site
   Tech-modern minimal aesthetic (Vercel/Linear vibe)
   ============================================================ */

/* ---------- THEME TOKENS ----------
   Two axes:
     data-theme  = light | dark    (text/line colors)
     data-bg     = paper | warm | mist | sand | sage | stone   (background palette)
   Each preset declares BOTH a light and a dark variant so the picker works in either mode. */

:root,
:root[data-theme="light"] {
  /* default ink + lines (light) */
  --ink: #111111;
  --ink-2: #2a2a2a;
  --ink-3: #5a5a55;
  --ink-4: #8a8a82;
  --line: rgba(17, 17, 17, 0.10);
  --line-strong: rgba(17, 17, 17, 0.22);
  --grid: rgba(17, 17, 17, 0.045);
  --accent: #2a6fdb;
  --accent-ink: #ffffff;
  --accent-soft: rgba(42, 111, 219, 0.10);
  --shadow-card: 0 1px 0 rgba(17, 17, 17, 0.04), 0 6px 24px -12px rgba(17, 17, 17, 0.10);
  /* default bg = mist */
  --bg: #eef1f4;
  --bg-elev: #ffffff;
  --bg-sunken: #e4e8ed;
}

:root[data-theme="dark"] {
  --ink: #f1efe9;
  --ink-2: #d8d5cd;
  --ink-3: #9a978f;
  --ink-4: #6a6862;
  --line: rgba(241, 239, 233, 0.09);
  --line-strong: rgba(241, 239, 233, 0.20);
  --grid: rgba(241, 239, 233, 0.04);
  --accent: #7aa5ff;
  --accent-ink: #0a0e18;
  --accent-soft: rgba(122, 165, 255, 0.14);
  --shadow-card: 0 1px 0 rgba(0,0,0,0.4), 0 10px 36px -14px rgba(0,0,0,0.7);
  /* default bg = mist (dark midnight slate) */
  --bg: #0c0f14;
  --bg-elev: #14181f;
  --bg-sunken: #080a0e;
}

/* ----- Light backgrounds ----- */
:root[data-theme="light"][data-bg="paper"]  { --bg: #ffffff; --bg-elev: #ffffff; --bg-sunken: #f4f4f4; }
:root[data-theme="light"][data-bg="warm"]   { --bg: #f6f4ef; --bg-elev: #ffffff; --bg-sunken: #efece5; }
:root[data-theme="light"][data-bg="mist"]   { --bg: #eef1f4; --bg-elev: #ffffff; --bg-sunken: #e4e8ed; }
:root[data-theme="light"][data-bg="sand"]   { --bg: #ece4d3; --bg-elev: #f6f1e2; --bg-sunken: #e3dac4; }
:root[data-theme="light"][data-bg="sage"]   { --bg: #eaeee8; --bg-elev: #f6f8f4; --bg-sunken: #dee3da; }
:root[data-theme="light"][data-bg="stone"]  { --bg: #ebe9e2; --bg-elev: #f5f3ec; --bg-sunken: #ddd9cf; }

/* ----- Dark backgrounds (professional, designer-grade) ----- */
:root[data-theme="dark"][data-bg="paper"]   { --bg: #0a0a0b; --bg-elev: #131315; --bg-sunken: #060607; }
:root[data-theme="dark"][data-bg="warm"]    { --bg: #14110d; --bg-elev: #1c1813; --bg-sunken: #0e0c09; }
:root[data-theme="dark"][data-bg="mist"]    { --bg: #0c0f14; --bg-elev: #14181f; --bg-sunken: #080a0e; }
:root[data-theme="dark"][data-bg="sand"]    { --bg: #161310; --bg-elev: #1f1b16; --bg-sunken: #100d0a; }
:root[data-theme="dark"][data-bg="sage"]    { --bg: #0d110f; --bg-elev: #151a17; --bg-sunken: #080b09; }
:root[data-theme="dark"][data-bg="stone"]   { --bg: #131210; --bg-elev: #1c1a17; --bg-sunken: #0d0c0a; }

:root {
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", system-ui, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --display-weight: 600;
  --display-tracking: -0.035em;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 22px;

  --maxw: 1240px;
  --pad-x: 28px;
}

/* ----- Display font presets (affects headings only) ----- */
:root[data-display="apple"]      { --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", system-ui, sans-serif; --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", system-ui, sans-serif; --display-weight: 600; --display-tracking: -0.035em; }
:root[data-display="space"]      { --font-display: "Space Grotesk", system-ui, sans-serif; --font-body: "Space Grotesk", system-ui, sans-serif; --display-weight: 500; --display-tracking: -0.035em; }
:root[data-display="bricolage"]  { --font-display: "Bricolage Grotesque", system-ui, sans-serif; --font-body: "Bricolage Grotesque", system-ui, sans-serif; --display-weight: 500; --display-tracking: -0.04em; }
:root[data-display="schibsted"]  { --font-display: "Schibsted Grotesk", system-ui, sans-serif; --font-body: "Schibsted Grotesk", system-ui, sans-serif; --display-weight: 500; --display-tracking: -0.03em; }
:root[data-display="inter"]      { --font-display: "Inter Tight", system-ui, sans-serif; --font-body: "Inter Tight", system-ui, sans-serif; --display-weight: 600; --display-tracking: -0.035em; }
:root[data-display="instrument"] { --font-display: "Instrument Serif", Georgia, serif; --font-body: -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif; --display-weight: 400; --display-tracking: -0.018em; }
:root[data-display="fraunces"]   { --font-display: "Fraunces", Georgia, serif; --font-body: -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif; --display-weight: 500; --display-tracking: -0.028em; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-feature-settings: "ss01", "ss02", "cv11";
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color .25s ease, color .25s ease;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }

::selection { background: var(--accent); color: var(--accent-ink); }

/* ---------- Layout ---------- */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

section { position: relative; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.h-section {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: clamp(28px, 3.4vw, 44px);
  letter-spacing: var(--display-tracking);
  line-height: 1.08;
  margin: 14px 0 0;
  text-wrap: balance;
}
.section-sub {
  color: var(--ink-3);
  font-size: 17px;
  max-width: 640px;
  margin: 14px 0 0;
  text-wrap: pretty;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bg) 82%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, background-color .2s ease;
}
.nav.is-scrolled { border-bottom-color: var(--line); }
.nav-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.brand img {
  height: 22px;
  width: auto;
  display: block;
  filter: none;
}
[data-theme="dark"] .brand img { filter: invert(1); }

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  font-size: 14px;
  color: var(--ink-3);
  transition: color .15s ease;
}
.nav-links a:hover { color: var(--ink); }

.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  transition: transform .12s ease, background-color .15s ease, border-color .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
[data-theme="dark"] .btn-primary { background: var(--ink); color: var(--bg); }

.btn-ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--ink); }

.btn-sm { height: 34px; padding: 0 13px; font-size: 13px; }
.btn-lg { height: 48px; padding: 0 22px; font-size: 15px; }

.btn .arrow {
  display: inline-block;
  transition: transform .2s ease;
}
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Lang toggle ---------- */
.lang {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}
.lang button {
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--ink-3);
}
.lang button.active {
  background: var(--ink);
  color: var(--bg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 56px 0 40px;
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 24px; }
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px 6px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-elev);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-3);
}
.hero-tag .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #19c37d;
  box-shadow: 0 0 0 4px rgba(25, 195, 125, 0.18);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: clamp(40px, 5.6vw, 76px);
  line-height: 0.98;
  letter-spacing: var(--display-tracking);
  margin: 0;
  text-wrap: balance;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
/* Serif displays look much better when the accent word is italic */
:root[data-display="instrument"] .hero h1 em,
:root[data-display="fraunces"] .hero h1 em {
  font-style: italic;
  font-weight: 400;
}
.hero p.lead {
  color: var(--ink-3);
  font-size: 18px;
  line-height: 1.55;
  max-width: 540px;
  margin: 22px 0 0;
  text-wrap: pretty;
}
.hero-ctas {
  display: flex;
  gap: 10px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.hero-meta {
  margin-top: 36px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-4);
}
.hero-meta span b { color: var(--ink); font-weight: 500; }

/* ---------- Hero diagram ---------- */
.hero-diagram {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background:
    radial-gradient(circle at 50% 50%, var(--bg-elev), var(--bg) 70%);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.hero-diagram svg { display: block; width: 100%; height: 100%; }
.hero-diagram .badge {
  position: absolute;
  top: 14px; left: 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 5px 8px;
  border-radius: 6px;
}
.hero-diagram .badge .pulse {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 6px;
  vertical-align: 1px;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: .4; transform: scale(.7); }
}

/* ---------- Marquee / stack ---------- */
.stack {
  padding: 60px 0 30px;
  border-top: 1px solid var(--line);
}
.stack-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-4);
  text-align: center;
  margin-bottom: 28px;
}
.stack-label-ai {
  margin-top: 28px;
}
.stack-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--bg-elev);
}
@media (max-width: 900px) { .stack-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 540px) { .stack-grid { grid-template-columns: repeat(2, 1fr); } }

.stack-item {
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-2);
  transition: background-color .2s ease;
}
.stack-item:hover { background: var(--bg-sunken); }
.brand-logo-inline {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}
.brand-logo-inline svg {
  width: 100%;
  height: 100%;
}

.stack-item svg,
.stack-item .brand-logo,
.stack-item .brand-fallback {
  width: 26px;
  height: 26px;
  object-fit: contain;
  flex-shrink: 0;
}
/* AWS wordmark logo is naturally wider — let it use a bit more horizontal space */
.stack-item .brand-logo[alt^="AWS"] { width: 38px; height: 24px; }
.brand-fallback {
  display: inline-grid;
  place-items: center;
  border-radius: 5px;
  border: 1.4px solid var(--bm, var(--ink));
  color: var(--bm, var(--ink));
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: transparent;
}
/* In dark mode, the dark "aws" wordmark needs lifting to stay legible. */
[data-theme="dark"] .brand-logo[alt^="AWS"] {
  filter: brightness(1.6) saturate(1.1);
}
/* Other monochrome dark marks (Helm) — invert in dark mode. */
[data-theme="dark"] .brand-logo.invert-on-dark {
  filter: invert(1) brightness(1.15);
}

/* ---------- Services ---------- */
.services {
  padding: 100px 0 80px;
}
.services-head {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 48px;
}
@media (max-width: 900px) { .services-head { grid-template-columns: 1fr; } }
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
@media (max-width: 780px) { .services-grid { grid-template-columns: 1fr; } }

.service {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--bg-elev);
  padding: 28px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 280px;
  overflow: hidden;
  transition: border-color .18s ease, transform .18s ease;
}
.service:hover { border-color: var(--line-strong); }
.service .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-4);
}
.service h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.018em;
  margin: 0;
  line-height: 1.15;
}
.service p {
  color: var(--ink-3);
  font-size: 14.5px;
  line-height: 1.55;
  margin: 0;
}
.service .bullets {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.service .bullets span {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 9px;
}
.service .glyph {
  position: absolute;
  top: 24px; right: 24px;
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  display: grid; place-items: center;
  color: var(--ink-2);
}
.service .glyph svg { width: 18px; height: 18px; }

/* Partner badge inside a service card */
.partner-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 3px 9px;
  margin-top: -4px;
}
.service-partner { border-color: var(--accent); }
.service-partner .glyph { color: var(--accent); border-color: var(--accent); }

/* ---------- Why us ---------- */
.why {
  padding: 80px 0;
  background: var(--bg-sunken);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
@media (max-width: 900px) { .why-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .why-grid { grid-template-columns: 1fr; } }
.why-item .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--accent);
}
.why-item h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.012em;
  margin: 10px 0 8px;
}
.why-item p {
  color: var(--ink-3);
  font-size: 14px;
  margin: 0;
  line-height: 1.55;
}

/* ---------- Process ---------- */
.process { padding: 100px 0; }
.process-list {
  margin-top: 48px;
  border-top: 1px solid var(--line);
}
.process-row {
  display: grid;
  grid-template-columns: 80px 1fr 2fr;
  gap: 32px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  transition: padding .2s ease;
}
.process-row:hover { padding-left: 8px; }
@media (max-width: 780px) { .process-row { grid-template-columns: 1fr; gap: 10px; } }
.process-row .step {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-4);
}
.process-row h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.018em;
  margin: 0;
}
.process-row p {
  color: var(--ink-3);
  font-size: 15px;
  margin: 0;
  line-height: 1.55;
}

/* ---------- Testimonials ---------- */
.testimonials {
  padding: 80px 0;
  background: var(--bg-sunken);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.t-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}
@media (max-width: 900px) { .t-grid { grid-template-columns: 1fr; } }
.t-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.t-card .quote {
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin: 0;
}
.t-card .who {
  display: flex; align-items: center; gap: 12px;
  margin-top: auto;
}
.t-card .avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}
.t-card .who .name { font-size: 14px; font-weight: 500; }
.t-card .who .role { font-family: var(--font-mono); font-size: 11px; color: var(--ink-4); }

/* ---------- FAQ ---------- */
.faq { padding: 100px 0; }
.faq-list { margin-top: 36px; border-top: 1px solid var(--line); }
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  text-align: left;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.014em;
  color: var(--ink);
}
.faq-q .ico {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: grid; place-items: center;
  flex-shrink: 0;
  transition: transform .25s ease, background-color .15s ease, color .15s ease;
}
.faq-item.open .faq-q .ico { transform: rotate(45deg); background: var(--ink); color: var(--bg); border-color: var(--ink); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  color: var(--ink-3);
  font-size: 15px;
  line-height: 1.6;
}
.faq-item.open .faq-a { max-height: 240px; }
.faq-a-inner { padding: 0 0 22px; max-width: 720px; }

/* ---------- Blog ---------- */
.blog {
  padding: 100px 0;
  background: var(--bg-sunken);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}
@media (max-width: 900px) { .blog-grid { grid-template-columns: 1fr; } }
.post {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px;
  display: flex; flex-direction: column;
  gap: 14px;
  transition: border-color .15s ease, transform .15s ease;
  cursor: pointer;
}
.post:hover { border-color: var(--line-strong); }
.post .thumb {
  aspect-ratio: 16 / 10;
  border-radius: 10px;
  background:
    repeating-linear-gradient(45deg, var(--bg-sunken) 0 8px, transparent 8px 16px),
    var(--bg-elev);
  border: 1px solid var(--line);
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-4);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.post .meta {
  display: flex; gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.post h4 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.014em;
  line-height: 1.25;
  margin: 0;
}
.post p { color: var(--ink-3); font-size: 14px; margin: 0; line-height: 1.5; }

/* ---------- CTA ---------- */
.cta {
  padding: 120px 0;
}
.cta-card {
  position: relative;
  border-radius: var(--r-xl);
  padding: 72px 64px;
  background: var(--ink);
  color: var(--bg);
  overflow: hidden;
  border: 1px solid var(--ink);
}
[data-theme="dark"] .cta-card {
  background: var(--bg-elev);
  border-color: var(--line);
  color: var(--ink);
}
[data-theme="dark"] .cta-card p { color: var(--ink-3); }
[data-theme="dark"] .cta-card .eyebrow { color: var(--ink-3); }
[data-theme="dark"] .cta-card .btn-primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
[data-theme="dark"] .cta-card .btn-primary:hover {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
[data-theme="dark"] .cta-card .btn-ghost {
  color: var(--ink);
  border-color: var(--line-strong);
}
[data-theme="dark"] .cta-card .btn-ghost:hover {
  border-color: var(--ink);
}
.cta-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 80% 20%, var(--accent) 0%, transparent 40%),
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  opacity: 0.6;
  pointer-events: none;
}
.cta-card > * { position: relative; }
.cta-card .eyebrow { color: rgba(255,255,255,0.6); }
.cta-card .eyebrow::before { background: var(--accent); }
.cta-card h2 {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: clamp(34px, 4.6vw, 56px);
  letter-spacing: var(--display-tracking);
  line-height: 1.02;
  margin: 16px 0 0;
  text-wrap: balance;
  max-width: 820px;
}
.cta-card p {
  color: rgba(255,255,255,0.7);
  font-size: 17px;
  max-width: 580px;
  margin: 20px 0 0;
}
.cta-actions { margin-top: 36px; display: flex; gap: 12px; flex-wrap: wrap; }
.cta-card .btn-primary {
  background: var(--bg);
  color: var(--ink);
  border-color: var(--bg);
}
.cta-card .btn-primary:hover { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.cta-card .btn-ghost { color: var(--bg); border-color: rgba(255,255,255,0.2); }
.cta-card .btn-ghost:hover { border-color: rgba(255,255,255,0.5); }
@media (max-width: 780px) {
  .cta-card { padding: 44px 28px; }
}

/* ---------- Footer ---------- */
.footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--line);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}
@media (max-width: 780px) { .footer-top { grid-template-columns: 1fr 1fr; } }
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin: 0 0 14px;
  font-weight: 500;
}
.footer-col a, .footer-col li {
  display: block;
  font-size: 14px;
  color: var(--ink-3);
  padding: 4px 0;
  list-style: none;
}
.footer-col ul { padding: 0; margin: 0; }
.footer-col a:hover { color: var(--ink); }
.footer-bot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-4);
  letter-spacing: 0.04em;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Theme toggle (sun/moon switch in nav) ---------- */
.theme-toggle {
  --tt-w: 52px;
  --tt-h: 28px;
  --tt-pad: 3px;
  position: relative;
  width: var(--tt-w);
  height: var(--tt-h);
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  display: inline-flex;
  align-items: center;
  padding: 0;
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.theme-toggle:hover { border-color: var(--line-strong); }
.theme-toggle-track {
  position: relative;
  width: 100%;
  height: 100%;
  display: block;
}
.theme-toggle-thumb {
  position: absolute;
  top: var(--tt-pad);
  left: var(--tt-pad);
  width: calc(var(--tt-h) - var(--tt-pad) * 2);
  height: calc(var(--tt-h) - var(--tt-pad) * 2);
  border-radius: 50%;
  background: var(--ink);
  color: var(--bg);
  display: grid;
  place-items: center;
  transition: transform .28s cubic-bezier(.5,.2,.25,1.2), background-color .2s ease, color .2s ease;
}
.theme-toggle-thumb[data-mode="dark"] {
  transform: translateX(calc(var(--tt-w) - var(--tt-h)));
}
.theme-toggle-thumb svg {
  transition: transform .35s cubic-bezier(.4,.1,.3,1.3);
}
.theme-toggle:active .theme-toggle-thumb svg { transform: scale(.85) rotate(-20deg); }

/* Hide the redundant Mode radio in Tweaks now that the nav controls it (still wired for state) */

/* ---------- Misc ---------- */
.divider-line {
  height: 1px;
  background: var(--line);
  margin: 0;
}
.kbd {
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 5px;
  color: var(--ink-3);
  background: var(--bg-elev);
}

@media (max-width: 720px) {
  .nav-links { display: none; }
}


/* ============================================================
   BLOG — listing + article
   ============================================================ */

.blog-hero {
  position: relative;
  padding: 64px 0 40px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.blog-hero-inner { position: relative; }
.blog-hero h1 {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: clamp(36px, 4.6vw, 60px);
  line-height: 1.04;
  letter-spacing: var(--display-tracking);
  margin: 14px 0 0;
  text-wrap: balance;
  max-width: 880px;
}
.blog-hero .lead {
  color: var(--ink-3);
  font-size: 17px;
  max-width: 640px;
  margin: 18px 0 0;
  text-wrap: pretty;
}
.blog-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 32px;
}
.blog-filters button {
  height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 13px;
  background: var(--bg-elev);
  transition: border-color .15s ease, color .15s ease, background-color .15s ease;
}
.blog-filters button:hover { color: var(--ink); border-color: var(--line-strong); }
.blog-filters button.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}

.blog-content { padding: 60px 0 80px; }
.blog-section { margin-bottom: 64px; }
.blog-section:last-child { margin-bottom: 0; }
.blog-section-label { margin-bottom: 24px; }

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 980px) { .article-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .article-grid { grid-template-columns: 1fr; } }

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color .15s ease, transform .15s ease;
  cursor: pointer;
  color: inherit;
}
.article-card:hover { border-color: var(--line-strong); transform: translateY(-1px); }

.article-card-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.article-card-cover .cover-art {
  width: 100%;
  height: 100%;
  display: block;
}
.article-card-lang {
  position: absolute;
  top: 12px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 5px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  color: var(--ink-3);
}
.article-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}
.article-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.article-card-tags span {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 8px;
}
.article-card-title {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: 19px;
  line-height: 1.22;
  letter-spacing: var(--display-tracking);
  margin: 0;
  text-wrap: balance;
}
.article-card-excerpt {
  color: var(--ink-3);
  font-size: 14.5px;
  line-height: 1.5;
  margin: 0;
  text-wrap: pretty;
}
.article-card-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
  letter-spacing: 0.04em;
  display: flex;
  gap: 8px;
  margin-top: auto;
}

/* Featured card: spans full width, side-by-side */
.article-card.is-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: stretch;
}
@media (max-width: 800px) { .article-card.is-featured { grid-template-columns: 1fr; } }
.article-card.is-featured .article-card-cover { aspect-ratio: auto; min-height: 320px; }
.article-card.is-featured .article-card-body { padding: 40px; gap: 16px; }
.article-card.is-featured .article-card-title {
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.1;
}
.article-card.is-featured .article-card-excerpt { font-size: 16px; }

.blog-disclaimer {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-4);
  text-align: center;
  margin: 60px 0 0;
  border-top: 1px solid var(--line);
  padding-top: 28px;
}

/* ---------- Article page ---------- */
.article-page { padding: 40px 0 100px; }
.article-wrap { max-width: 820px; }

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  margin-bottom: 32px;
}
.article-back span {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 1px solid var(--line);
  transition: transform .15s ease, border-color .15s ease;
}
.article-back:hover { color: var(--ink); }
.article-back:hover span { transform: translateX(-3px); border-color: var(--ink); }

.article-header { margin-bottom: 32px; }
.article-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.article-tags span {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 9px;
}
.article-tags .lang-pill {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}
.article-title {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: clamp(32px, 4.2vw, 52px);
  line-height: 1.04;
  letter-spacing: var(--display-tracking);
  margin: 0;
  text-wrap: balance;
}
.article-deck {
  color: var(--ink-3);
  font-size: 19px;
  line-height: 1.5;
  margin: 18px 0 0;
  text-wrap: pretty;
}
.article-meta {
  margin-top: 24px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-4);
  letter-spacing: 0.04em;
}
.article-meta a {
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.article-meta a:hover { color: var(--ink); }
.article-meta a svg { width: 11px; height: 11px; }

.article-cover {
  margin: 36px 0 48px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 16 / 8;
}
.article-cover .cover-art { width: 100%; height: 100%; display: block; }

.article-body {
  font-size: 17.5px;
  line-height: 1.7;
  color: var(--ink-2);
}
.article-body h2 {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: 26px;
  line-height: 1.18;
  letter-spacing: var(--display-tracking);
  margin: 48px 0 18px;
  color: var(--ink);
}
.article-body h3 {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: 20px;
  line-height: 1.2;
  margin: 36px 0 14px;
  color: var(--ink);
}
.article-body p { margin: 0 0 18px; text-wrap: pretty; }
.article-body strong { color: var(--ink); font-weight: 600; }
.article-body ul, .article-body ol {
  margin: 0 0 18px;
  padding-left: 22px;
}
.article-body li { margin: 6px 0; }
.article-body code {
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 2px 6px;
  border-radius: 5px;
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  color: var(--ink);
}
.article-body pre {
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 18px 22px;
  margin: 0 0 22px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.6;
}
.article-body pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: inherit;
  color: var(--ink-2);
}

.article-cta {
  margin: 64px 0 0;
  padding: 36px 32px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--bg-elev);
}
.article-cta h3 {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  font-size: 22px;
  letter-spacing: var(--display-tracking);
  line-height: 1.2;
  margin: 0;
  text-wrap: balance;
}
.article-cta p {
  color: var(--ink-3);
  margin: 12px 0 22px;
  max-width: 540px;
}

.related {
  border-top: 1px solid var(--line);
  margin-top: 80px;
  padding: 64px 0 0;
}

.nav-links a.is-active { color: var(--ink); font-weight: 500; }