/* ============================================================
   ChromeX by Gethen Intelligence — design tokens
   A neutral charcoal ground (no green/teal cast), muted gray
   foreground text, one restrained tech-blue accent, hairline
   rules like a schematic, serif headlines with a literary
   field-log feel, monospace for anything that reads as data.
   ============================================================ */

:root {
  --ground: #f3f3f4;
  --ground-raised: #e7e7e9;
  --card-bg: #fafafa;
  --ink: #18181b;
  --ink-dim: #55555d;
  --ink-faint: #8d8d94;
  --line: #d6d6d9;
  --line-strong: #b8b8bd;
  --accent: #3f5fae;
  --accent-ink: #f5f7fb;
  --accent-soft: rgba(63, 95, 174, 0.10);

  --font-display: Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'Cascadia Code', 'Consolas', monospace;

  --wrap: 1160px;
  --radius: 6px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #121214;
    --ground-raised: #1b1b1e;
    --card-bg: #18181b;
    --ink: #e9e9ec;
    --ink-dim: #a1a1a8;
    --ink-faint: #6b6b70;
    --line: #2a2a2e;
    --line-strong: #38383e;
    --accent: #7c9bea;
    --accent-ink: #0d1220;
    --accent-soft: rgba(124, 155, 234, 0.14);
  }
}

:root[data-theme='dark'] {
  --ground: #121214;
  --ground-raised: #1b1b1e;
  --card-bg: #18181b;
  --ink: #e9e9ec;
  --ink-dim: #a1a1a8;
  --ink-faint: #6b6b70;
  --line: #2a2a2e;
  --line-strong: #38383e;
  --accent: #7c9bea;
  --accent-ink: #0d1220;
  --accent-soft: rgba(124, 155, 234, 0.14);
}

:root[data-theme='light'] {
  --ground: #f3f3f4;
  --ground-raised: #e7e7e9;
  --card-bg: #fafafa;
  --ink: #18181b;
  --ink-dim: #55555d;
  --ink-faint: #8d8d94;
  --line: #d6d6d9;
  --line-strong: #b8b8bd;
  --accent: #3f5fae;
  --accent-ink: #f5f7fb;
  --accent-soft: rgba(63, 95, 174, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition: none !important;
  }
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

h1, h2, h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  text-wrap: balance;
  letter-spacing: -0.005em;
}

p {
  margin: 0;
}

dl, dt, dd {
  margin: 0;
}

/* ---------- topbar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
}

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 5px;
  border: 1px solid var(--line-strong);
  color: var(--accent);
}

.brand-icon svg {
  width: 16px;
  height: 16px;
}

.brand-icon-sm {
  width: 22px;
  height: 22px;
}

.brand-icon-sm svg {
  width: 13px;
  height: 13px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: 'Space Grotesk', var(--font-body);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.brand-sm .brand-name {
  font-size: 14px;
}

.brand-by {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.01em;
  color: var(--ink-faint);
}

.brand-sm .brand-by {
  font-size: 10px;
}

.topnav {
  display: flex;
  gap: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.topnav a {
  color: var(--ink-dim);
  transition: color 0.15s ease;
}

.topnav a:hover {
  color: var(--accent);
}

/* ---------- hero ---------- */

.hero {
  padding: 88px 0 72px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 64px;
  align-items: start;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.18;
  max-width: 640px;
  margin-bottom: 24px;
}

.hero-sub {
  max-width: 560px;
  color: var(--ink-dim);
  font-size: 16px;
  line-height: 1.75;
}

.hero-cta {
  display: flex;
  gap: 14px;
  margin-top: 34px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 11px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover {
  transform: translateY(-1px);
}

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

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* readout panel */

.readout {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--card-bg);
  padding: 18px 20px 16px;
  font-family: var(--font-mono);
}

.readout-head {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-bottom: 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.readout-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.readout-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 12.5px;
}

.readout-row dt {
  color: var(--ink-dim);
  flex: 1;
  overflow: hidden;
  border-bottom: 1px dotted var(--line-strong);
}

.readout-row dd {
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.readout-foot {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  color: var(--ink-faint);
}

/* ---------- section headings ---------- */

.section-head {
  margin-bottom: 44px;
}

.extensions h2,
.concept h2 {
  font-size: clamp(24px, 2.8vw, 30px);
}

.section-sub {
  color: var(--ink-dim);
  margin-top: 10px;
  font-size: 15px;
}

/* ---------- extensions ---------- */

.extensions {
  padding: 76px 0;
  border-bottom: 1px solid var(--line);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card-bg);
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.card-top {
  display: flex;
  align-items: center;
  gap: 14px;
}

.card-icon-ring {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1.5px solid var(--accent);
  color: var(--accent);
}

.card-icon-ring svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  font-size: 18px;
}

.card-tagline {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.card-desc {
  font-size: 13.5px;
  color: var(--ink-dim);
  line-height: 1.65;
  flex: 1;
}

.card-pricing {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.card-pricing > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.card-pricing dt {
  color: var(--ink-faint);
  flex: 1;
  overflow: hidden;
  border-bottom: 1px dotted var(--line);
}

.card-pricing dd {
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.card-link {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.card:hover .card-link {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.coming-soon {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink-faint);
}

.coming-soon::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: 1.5px solid var(--ink-faint);
}

/* ---------- data-flow diagram ---------- */

.data-flow {
  padding: 76px 0;
  border-bottom: 1px solid var(--line);
}

.data-flow-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 28px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-dim);
}

.data-flow-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.data-flow-swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.data-flow-swatch-local {
  background: var(--accent);
}

.data-flow-swatch-server {
  background: var(--ink-faint);
}

.data-flow-diagram {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(150px, 188px) minmax(246px, 268px);
  gap: 16px;
  align-items: stretch;
}

.data-flow-zone {
  min-width: 0;
  border-radius: var(--radius);
  padding: 22px;
}

.data-flow-zone-local {
  position: relative;
  overflow: hidden;
  border: 1.5px solid var(--accent);
  background: var(--accent-soft);
}

/* A slow diagonal light sweep across the on-device panel — reads as the
   extension continuously scanning what's on screen. */
.data-flow-zone-local::after {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 42%;
  pointer-events: none;
  opacity: 0;
  background: linear-gradient(100deg,
      transparent,
      color-mix(in srgb, var(--accent) 24%, transparent),
      transparent);
}

.data-flow-zone-server {
  border: 1px solid var(--line-strong);
  background: var(--card-bg);
}

/* instrument-style header on the on-device panel */
.data-flow-zone-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.data-flow-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}

.data-flow-live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.data-flow-scan {
  position: relative;
  flex: 1;
  min-width: 40px;
  max-width: 92px;
  height: 3px;
  border-radius: 2px;
  overflow: hidden;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
}

.data-flow-scan::before {
  content: '';
  position: absolute;
  top: 0;
  left: -42%;
  width: 42%;
  height: 100%;
  border-radius: 2px;
  background: var(--accent);
}

.data-flow-zone-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.data-flow-zone-local .data-flow-zone-label {
  color: var(--accent);
}

.data-flow-zone-server .data-flow-zone-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-faint);
}

.data-flow-uplink-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink-faint);
  flex-shrink: 0;
}

.data-flow-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.data-flow-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  padding: 7px 13px 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--ink);
  background: var(--card-bg);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  text-align: left;
  overflow-wrap: anywhere;
}

.data-flow-chip-icon {
  width: 15px;
  height: 15px;
  color: var(--accent);
  flex-shrink: 0;
}

/* ---- the boundary conduit: content turned back, metadata let through ---- */

.data-flow-conduit {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 168px;
  padding: 0 6px;
  overflow: hidden;
}

/* the ring-fence itself: a dashed line down the centre */
.data-flow-fence {
  position: absolute;
  top: 12%;
  bottom: 12%;
  left: 50%;
  width: 0;
  border-left: 1.5px dashed var(--accent);
  opacity: 0.7;
  transform: translateX(-50%);
}

.data-flow-shield {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--ground);
  border: 1.5px solid var(--accent);
  color: var(--accent);
}

.data-flow-shield svg {
  width: 22px;
  height: 22px;
}

.data-flow-packet {
  position: absolute;
  top: 50%;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
}

/* content: accent, pushed out from the device and turned back at the fence */
.data-flow-packet-blocked {
  background: var(--accent);
  box-shadow: 0 0 9px -1px var(--accent);
}

/* metadata: grey, the only kind that slips past the fence to the server */
.data-flow-packet-pass {
  background: var(--ink-faint);
}

.data-flow-conduit-label {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.03em;
  color: var(--ink-faint);
}

.data-flow-server-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
}

.data-flow-server-list > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.data-flow-server-list > div:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.data-flow-server-list dt {
  color: var(--ink-faint);
}

.data-flow-server-list dd {
  color: var(--ink);
  font-weight: 700;
  text-align: right;
  white-space: nowrap;
}

.data-flow-foot {
  margin-top: 20px;
  font-size: 12.5px;
  color: var(--ink-faint);
}

.data-flow-foot a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ============================================================
   Motion — entrance, scroll-reveal, and the live data-flow
   monitor. Every animation below is gated on the .js-anim class,
   which the head script adds ONLY when the visitor has not asked
   to reduce motion. No .js-anim (no-JS or reduced-motion) → the
   page renders fully static, with no hidden content.
   ============================================================ */

/* scroll-reveal: fade + rise each block the first time it's seen */
.js-anim [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s cubic-bezier(0.2, 0.6, 0.2, 1),
    transform 0.6s cubic-bezier(0.2, 0.6, 0.2, 1);
  will-change: opacity, transform;
}

.js-anim [data-reveal].in-view {
  opacity: 1;
  transform: none;
}

/* hero entrance — staggered, on load */
.js-anim .hero .eyebrow,
.js-anim .hero h1,
.js-anim .hero-sub,
.js-anim .hero-cta,
.js-anim .readout {
  animation: reveal-up 0.7s cubic-bezier(0.2, 0.6, 0.2, 1) both;
}

.js-anim .hero h1 {
  animation-delay: 0.08s;
}

.js-anim .readout {
  animation-delay: 0.16s;
}

.js-anim .hero-sub {
  animation-delay: 0.18s;
}

.js-anim .hero-cta {
  animation-delay: 0.26s;
}

/* data-flow: the live monitor */
.js-anim .data-flow-zone-local {
  animation: fence-breathe 4.6s ease-in-out infinite;
}

.js-anim .data-flow-zone-local::after {
  animation: scan-sweep 4.6s ease-in-out infinite;
}

.js-anim .data-flow-live-dot {
  animation: live-pulse 1.8s ease-in-out infinite;
}

.js-anim .data-flow-uplink-dot {
  animation: live-pulse 2.4s ease-in-out infinite;
}

.js-anim .data-flow-scan::before {
  animation: scan-bar 2.6s ease-in-out infinite;
}

.js-anim .data-flow-shield {
  animation: shield-ring 3s ease-in-out infinite;
}

/* chips pop in, staggered, once the diagram scrolls into view */
.js-anim .data-flow-diagram .data-flow-chip {
  opacity: 0;
}

.js-anim .data-flow-diagram.in-view .data-flow-chip {
  animation: chip-in 0.5s cubic-bezier(0.2, 0.7, 0.3, 1) forwards;
}

.js-anim .data-flow-diagram.in-view .data-flow-chip:nth-child(1) { animation-delay: 0.10s; }
.js-anim .data-flow-diagram.in-view .data-flow-chip:nth-child(2) { animation-delay: 0.16s; }
.js-anim .data-flow-diagram.in-view .data-flow-chip:nth-child(3) { animation-delay: 0.22s; }
.js-anim .data-flow-diagram.in-view .data-flow-chip:nth-child(4) { animation-delay: 0.28s; }
.js-anim .data-flow-diagram.in-view .data-flow-chip:nth-child(5) { animation-delay: 0.34s; }
.js-anim .data-flow-diagram.in-view .data-flow-chip:nth-child(6) { animation-delay: 0.40s; }
.js-anim .data-flow-diagram.in-view .data-flow-chip:nth-child(7) { animation-delay: 0.46s; }

/* packets — content turned back at the fence, metadata slipping through.
   Positions/timings vary per packet so the flow never looks lockstep.
   Child order in .data-flow-conduit: fence(1), shield(2), blocked(3-7),
   pass(8-9), label(10). */
.js-anim .data-flow-packet-blocked { animation: packet-blocked 3.4s ease-in infinite; }
.js-anim .data-flow-packet-pass { animation: packet-pass 3.4s ease-out infinite; }

.js-anim .data-flow-packet:nth-child(3) { top: 27%; animation-delay: 0s; }
.js-anim .data-flow-packet:nth-child(4) { top: 43%; animation-delay: 0.7s; }
.js-anim .data-flow-packet:nth-child(5) { top: 58%; animation-delay: 1.3s; }
.js-anim .data-flow-packet:nth-child(6) { top: 68%; animation-delay: 2.0s; }
.js-anim .data-flow-packet:nth-child(7) { top: 36%; animation-delay: 2.6s; }
.js-anim .data-flow-packet:nth-child(8) { top: 47%; animation-delay: 1.0s; }
.js-anim .data-flow-packet:nth-child(9) { top: 52%; animation-delay: 2.5s; }

@keyframes reveal-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: none; }
}

@keyframes live-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.78); }
}

@keyframes scan-bar {
  0% { left: -42%; }
  55%, 100% { left: 100%; }
}

@keyframes scan-sweep {
  0% { left: -45%; opacity: 0; }
  30% { opacity: 1; }
  65% { opacity: 0; }
  100% { left: 118%; opacity: 0; }
}

@keyframes fence-breathe {
  0%, 100% { box-shadow: 0 0 0 0 transparent; }
  50% { box-shadow: 0 0 28px -10px var(--accent); }
}

@keyframes shield-ring {
  0% { box-shadow: 0 0 0 0 var(--accent-soft); }
  70% { box-shadow: 0 0 0 13px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

@keyframes chip-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

@keyframes packet-blocked {
  0% { left: 6%; opacity: 0; transform: scale(0.5); }
  12% { opacity: 1; transform: scale(1); }
  42% { left: 44%; opacity: 1; }
  50% { left: 47%; opacity: 1; transform: scale(1.4); }
  64% { left: 30%; opacity: 0.5; transform: scale(0.85); }
  100% { left: 14%; opacity: 0; transform: scale(0.5); }
}

@keyframes packet-pass {
  0% { left: 50%; opacity: 0; transform: scale(0.5); }
  16% { opacity: 1; transform: scale(1); }
  84% { opacity: 1; }
  100% { left: 102%; opacity: 0; transform: scale(0.6); }
}

/* ---------- comparison table ---------- */

.comparison {
  padding: 76px 0;
  border-bottom: 1px solid var(--line);
}

.compare-scroll {
  overflow-x: auto;
}

.compare-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

.compare-table th,
.compare-table td {
  text-align: left;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.compare-table th:first-child,
.compare-table td:first-child {
  padding-left: 0;
}

.compare-table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border-bottom: 1px solid var(--line-strong);
}

.compare-table tbody td:first-child {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  white-space: nowrap;
}

.compare-table tbody tr:hover {
  background: var(--card-bg);
}

.compare-leak {
  color: var(--ink-dim);
  font-size: 13.5px;
  line-height: 1.65;
  max-width: 420px;
}

.compare-safe {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.compare-foot {
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--ink-faint);
}

/* ---------- concept / field notes ---------- */

.concept {
  padding: 76px 0 88px;
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 36px;
}

.concept-item {
  padding-top: 18px;
  border-top: 2px solid var(--line-strong);
}

.concept-mark {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
}

.concept-item h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.concept-item p {
  font-size: 14px;
  color: var(--ink-dim);
  line-height: 1.7;
}

/* ---------- FAQ ---------- */

.faq {
  padding: 76px 0 88px;
  border-bottom: 1px solid var(--line);
}

.faq-list {
  max-width: 720px;
}

.faq-item {
  border-top: 1px solid var(--line);
  padding: 18px 0;
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--accent);
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: '\2212';
}

.faq-item p {
  margin-top: 14px;
  max-width: 640px;
  color: var(--ink-dim);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- contact CTA (landing page) ---------- */

.contact-cta {
  padding: 76px 0 88px;
  border-bottom: 1px solid var(--line);
}

.contact-cta .contact-form {
  max-width: 640px;
}

/* ---------- AI accuracy disclaimer ---------- */

.ai-disclaimer-section {
  padding: 32px 0;
}

.ai-disclaimer {
  padding: 18px 20px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.ai-disclaimer p {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-faint);
  max-width: 880px;
}

.ai-disclaimer strong {
  color: var(--ink-dim);
}

/* ---------- footer ---------- */

.footer {
  padding: 30px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.brand-sm {
  font-size: 13px;
  color: var(--ink-dim);
}

.footer p {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-faint);
}

.footer-legal-nav {
  display: flex;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-legal-nav a {
  color: var(--ink-faint);
  transition: color 0.15s ease;
}

.footer-legal-nav a:hover {
  color: var(--accent);
}

.footer-copyright {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

/* ---------- legal pages ---------- */

.legal-page {
  padding: 64px 0 96px;
}

.legal-wrap {
  max-width: 760px;
}

.legal-title {
  font-size: clamp(28px, 3.4vw, 38px);
  margin-bottom: 10px;
}

.legal-updated {
  color: var(--ink-dim);
  font-size: 13.5px;
  margin-bottom: 40px;
}

.legal-body h2 {
  font-size: 18px;
  margin-top: 40px;
  margin-bottom: 14px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.legal-body h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.legal-body p {
  color: var(--ink-dim);
  font-size: 14.5px;
  line-height: 1.75;
  margin-bottom: 16px;
}

.legal-body ol {
  color: var(--ink-dim);
  font-size: 14.5px;
  line-height: 1.75;
  margin: 0 0 16px;
  padding-left: 22px;
}

.legal-body li {
  margin-bottom: 8px;
}

.legal-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-body strong {
  color: var(--ink);
}

.legal-owner {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 2px solid var(--line-strong);
}

.legal-owner p {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  line-height: 1.7;
}

.legal-owner strong {
  color: var(--ink-dim);
}

/* ---------- contact form ---------- */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 8px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-field label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.form-field input,
.form-field select,
.form-field textarea {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink);
  background: var(--card-bg);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 11px 13px;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.form-status {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-dim);
}

/* ---------- product detail pages ---------- */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 22px 28px 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb [aria-current='page'] {
  color: var(--ink-dim);
}

.product-hero {
  padding: 40px 0 64px;
  border-bottom: 1px solid var(--line);
}

.product-hero-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 56px;
  align-items: start;
}

.product-hero-copy .eyebrow {
  color: var(--accent);
}

.product-hero h1 {
  font-size: clamp(26px, 3.2vw, 38px);
  line-height: 1.2;
  margin-bottom: 20px;
}

.product-glance {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--card-bg);
  padding: 20px;
}

.product-glance-icon {
  display: block;
  border-radius: 10px;
  margin-bottom: 16px;
}

.glance-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--font-mono);
}

.glance-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.glance-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.glance-row dt {
  color: var(--ink-faint);
}

.glance-row dd {
  font-weight: 700;
  color: var(--ink);
  text-align: right;
}

.product-section {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.product-section:last-of-type {
  border-bottom: none;
}

.device-split-section {
  padding: 48px 0;
}

.device-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.device-col {
  background: var(--card-bg);
  padding: 22px 24px;
}

.device-col-mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.device-col-local .device-col-mark {
  color: var(--accent);
}

.device-col-cloud .device-col-mark,
.device-col-note .device-col-mark {
  color: var(--ink-faint);
}

.device-col p {
  font-size: 14px;
  color: var(--ink-dim);
  line-height: 1.7;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.feature-card {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.feature-card h3 {
  font-size: 16px;
  margin-bottom: 10px;
  color: var(--accent);
}

.feature-card p {
  font-size: 13.5px;
  color: var(--ink-dim);
  line-height: 1.65;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.pricing-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.pricing-card-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
}

.pricing-card-price {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--accent);
  white-space: nowrap;
}

.pricing-card-features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13.5px;
  color: var(--ink-dim);
  line-height: 1.5;
}

.pricing-card-features li {
  padding-left: 18px;
  position: relative;
}

.pricing-card-features li::before {
  content: '\2013';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.matrix-table {
  min-width: 620px;
}

.matrix-cell {
  text-align: center !important;
}

.matrix-row-self td:first-child {
  color: var(--accent);
}

.check-yes,
.check-no {
  display: inline-flex;
  font-weight: 700;
}

.check-yes {
  color: var(--accent);
}

.check-no {
  color: var(--ink-faint);
}

.other-products-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.other-product-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.other-product-link:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.other-product-link img {
  border-radius: 8px;
  flex-shrink: 0;
}

.other-product-link span {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.other-product-link strong {
  font-family: var(--font-display);
  font-size: 14px;
}

.other-product-link small {
  font-size: 12px;
  color: var(--ink-dim);
}

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .hero-grid,
  .product-hero-grid {
    grid-template-columns: 1fr;
  }
  .readout,
  .product-glance {
    max-width: 340px;
  }
  .device-split {
    grid-template-columns: 1fr;
  }
  .data-flow-diagram {
    grid-template-columns: minmax(0, 1fr);
  }
  /* stacked: the conduit becomes a slim horizontal band, the fence turns
     sideways, and the horizontal packet flow (which needs width) drops out */
  .data-flow-conduit {
    min-height: 92px;
  }
  .data-flow-fence {
    top: 50%;
    bottom: auto;
    left: 12%;
    right: 12%;
    width: auto;
    height: 0;
    border-left: none;
    border-top: 1.5px dashed var(--accent);
    transform: translateY(-50%);
  }
  .data-flow-packet {
    display: none;
  }
  .data-flow-conduit-label {
    bottom: 10px;
  }
  .data-flow-server-list {
    max-width: none;
  }
}

@media (max-width: 640px) {
  .hero,
  .product-hero {
    padding: 56px 0 48px;
  }
  .extensions,
  .concept,
  .data-flow,
  .product-section {
    padding: 56px 0;
  }
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .card-footer {
    flex-direction: column;
    align-items: flex-start;
  }
  .data-flow-server-list > div {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }
  .data-flow-server-list dd {
    text-align: left;
    white-space: normal;
    overflow-wrap: anywhere;
  }
  .data-flow-chips {
    display: block;
  }
  .data-flow-chip {
    display: flex;
    width: 100%;
    margin-bottom: 8px;
    text-align: left;
  }
  .data-flow-chip:last-child {
    margin-bottom: 0;
  }
}