/* ==========================================================================
   Hacker Setup — design system and site styles
   Stack: HTML5 + CSS3 + vanilla JS. No framework, no build step.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */
:root {
  color-scheme: dark;

  --bg: #0B0D10;
  --card: #15191F;
  --accent: #F5B942;
  --accent-soft: #FDE68A;
  --text: #F5F5F5;
  --muted: #A1A1AA;

  --muted-strong: #C7C9CF;
  --ink: #14100A;
  --surface-2: #10141A;
  --surface-3: #1B2028;
  --border: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(245, 185, 66, 0.24);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --shadow-accent: 0 16px 44px rgba(245, 185, 66, 0.13);

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --container: 1160px;
  --header-h: 72px;

  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. Reset and base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--bg);
  background-image:
    radial-gradient(1000px 620px at 82% -10%, rgba(245, 185, 66, 0.08), transparent 62%),
    radial-gradient(820px 520px at -10% 26%, rgba(253, 230, 138, 0.04), transparent 60%),
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: auto, auto, 72px 72px, 72px 72px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

img,
svg {
  max-width: 100%;
}

img {
  display: block;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

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

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

[hidden] {
  display: none !important;
}

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

:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 3px;
  border-radius: 4px;
}

svg.lucide {
  width: 1.1em;
  height: 1.1em;
  stroke-width: 1.8;
}

/* --------------------------------------------------------------------------
   3. Utilities
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--ink);
  font-weight: 700;
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 16px;
}

.text-accent {
  color: var(--accent);
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.placeholder {
  color: var(--muted);
  font-style: italic;
}

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 44px;
  padding: 0.75rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  cursor: pointer;
  transition:
    transform 0.2s var(--ease),
    background-color 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease,
    box-shadow 0.2s ease;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

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

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink);
  box-shadow: 0 10px 30px rgba(245, 185, 66, 0.14);
}

.btn-primary:hover {
  background: var(--accent-soft);
  border-color: var(--accent-soft);
  box-shadow: 0 14px 38px rgba(245, 185, 66, 0.22);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.02);
  border-color: rgba(255, 255, 255, 0.14);
  color: var(--text);
}

.btn-ghost:hover {
  background: rgba(245, 185, 66, 0.06);
  border-color: var(--border-accent);
  color: var(--accent-soft);
}

.btn-sm {
  min-height: 38px;
  padding: 0.55rem 1rem;
  font-size: 0.82rem;
}

.btn-lg {
  min-height: 50px;
  padding: 0.9rem 1.45rem;
  font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   5. Header and mobile navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 13, 16, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-mark {
  width: 38px;
  height: 38px;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-name-accent {
  margin-left: 2px;
  color: var(--accent);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 28px);
}

.desktop-nav a {
  position: relative;
  padding: 6px 0;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible {
  color: var(--text);
}

.desktop-nav a:hover::after,
.desktop-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  padding: 0;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

.mobile-nav {
  position: fixed;
  top: var(--header-h);
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 49;
  padding: 24px clamp(20px, 6vw, 40px) 40px;
  overflow-y: auto;
  background: rgba(11, 13, 16, 0.98);
  border-top: 1px solid var(--border);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.mobile-nav-links {
  display: grid;
  gap: 4px;
}

.mobile-nav-links > a:not(.btn) {
  display: block;
  padding: 16px 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
}

.mobile-nav-links > a:not(.btn):hover {
  color: var(--accent);
}

.mobile-nav-links .btn {
  width: 100%;
  margin-top: 20px;
}

.no-js-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  padding: 12px clamp(20px, 5vw, 40px);
  background: var(--surface-2);
  border-top: 1px solid var(--border);
}

.no-js-nav a {
  color: var(--muted);
  font-size: 0.82rem;
}

@media (min-width: 901px) {
  .no-js-nav {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   6. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding-block: clamp(64px, 9vw, 112px) clamp(40px, 6vw, 64px);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(36px, 6vw, 72px);
  align-items: center;
}

.hero-copy {
  max-width: 680px;
  animation: rise 0.7s var(--ease) both;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.status-dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(245, 185, 66, 0.12);
  animation: pulse 2.8s ease-in-out infinite;
}

.hero h1 {
  margin-bottom: 22px;
  font-size: clamp(2.7rem, 6.2vw, 4.9rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.lede {
  max-width: 62ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.12rem);
  line-height: 1.7;
}

.hero .lede {
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  color: var(--muted);
  font-size: 0.82rem;
}

.hero-proof li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-proof svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

.hero-visual {
  position: relative;
  display: grid;
  min-height: 430px;
  place-items: center;
  isolation: isolate;
  animation: rise 0.8s 0.1s var(--ease) both;
}

.hero-visual::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: -1;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 185, 66, 0.14), transparent 65%);
  filter: blur(10px);
  transform: translate(-50%, -50%);
}

.signal-card {
  position: relative;
  width: min(100%, 430px);
  padding: 20px;
  background: linear-gradient(160deg, rgba(27, 32, 40, 0.96), rgba(16, 20, 26, 0.98));
  border: 1px solid rgba(245, 185, 66, 0.22);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transform: rotate(-2deg);
}

.signal-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.06), transparent 35%);
  pointer-events: none;
}

.signal-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.signal-label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
}

.signal-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
}

.signal-status .status-dot {
  width: 5px;
  height: 5px;
}

.signal-rows {
  display: grid;
}

.signal-row {
  display: grid;
  grid-template-columns: 28px 1fr 44px auto;
  gap: 10px;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.055);
}

.signal-num {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.66rem;
}

.signal-name {
  color: var(--text);
  font-size: 0.84rem;
}

.signal-line {
  height: 1px;
  background: linear-gradient(90deg, rgba(245, 185, 66, 0.35), rgba(245, 185, 66, 0.05));
}

.signal-tag {
  padding: 3px 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.signal-card-footer {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  overflow: hidden;
}

.signal-scan {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.7;
  animation: scan 4s linear infinite;
}

.signal-orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(245, 185, 66, 0.12);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.signal-orbit-one {
  width: 470px;
  height: 470px;
}

.signal-orbit-two {
  width: 560px;
  height: 560px;
  border-style: dashed;
  opacity: 0.55;
}

.signal-chip {
  position: absolute;
  padding: 6px 10px;
  border: 1px solid rgba(245, 185, 66, 0.25);
  border-radius: 999px;
  background: rgba(245, 185, 66, 0.08);
  color: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
}

.signal-chip-a {
  top: 8%;
  right: 0;
}

.signal-chip-b {
  bottom: 7%;
  left: 0;
}

.capability-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-top: clamp(44px, 6vw, 72px);
  padding: 16px 0;
  border-block: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.capability-strip li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.capability-strip li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   7. Sections and cards
   -------------------------------------------------------------------------- */
.section {
  padding-block: clamp(72px, 9vw, 116px);
}

.section-alt {
  background: rgba(255, 255, 255, 0.018);
  border-block: 1px solid rgba(255, 255, 255, 0.05);
}

.section-head {
  max-width: 760px;
  margin-bottom: clamp(32px, 4vw, 48px);
}

.section-head h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4.2vw, 3.2rem);
}

.section-head-split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  max-width: none;
}

.section-head-split > div {
  max-width: 720px;
}

.section-head-split .btn {
  flex-shrink: 0;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.panel {
  position: relative;
  padding: 28px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition:
    transform 0.25s var(--ease),
    border-color 0.25s ease;
}

.panel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 24px;
  left: 24px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245, 185, 66, 0.5), transparent);
}

.panel:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.panel h3 {
  margin: 18px 0 10px;
  font-size: 1.15rem;
}

.panel p {
  color: var(--muted);
  font-size: 0.92rem;
}

.icon-box {
  display: inline-grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 1px solid rgba(245, 185, 66, 0.2);
  border-radius: 13px;
  background: rgba(245, 185, 66, 0.08);
  color: var(--accent);
}

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

.callout {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 20px;
  padding: 18px 20px;
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  background: rgba(245, 185, 66, 0.045);
  color: var(--muted-strong);
  font-size: 0.9rem;
}

.callout svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}

.callout strong {
  color: var(--text);
}

.callout-warn {
  border-color: rgba(253, 230, 138, 0.28);
  background: rgba(253, 230, 138, 0.035);
}

/* --------------------------------------------------------------------------
   8. Products
   -------------------------------------------------------------------------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition:
    transform 0.25s var(--ease),
    border-color 0.25s ease,
    box-shadow 0.25s ease;
}

.product-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-accent);
}

.product-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #0E1116;
  border-bottom: 1px solid var(--border);
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 5px 8px;
  border: 1px solid rgba(245, 185, 66, 0.28);
  border-radius: 999px;
  background: rgba(11, 13, 16, 0.78);
  color: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.product-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 20px;
}

.product-name {
  margin-bottom: 8px;
  font-size: 1.12rem;
}

.product-desc {
  flex: 1;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.availability {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 0.7rem;
}

.availability .dot {
  width: 5px;
  height: 5px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 185, 66, 0.1);
}

.price {
  padding: 4px 8px;
  border: 1px solid rgba(245, 185, 66, 0.22);
  border-radius: 6px;
  background: rgba(245, 185, 66, 0.06);
  color: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
}

.product-cta {
  width: 100%;
}

/* Sixth tile: a direct sourcing request, not a catalogue product. */
.product-card-cta {
  border-style: dashed;
  border-color: var(--border-accent);
  background: rgba(245, 185, 66, 0.035);
}

.product-card-cta .product-body {
  justify-content: center;
}

.product-card-cta .icon-box {
  margin-bottom: 18px;
}

.product-card-cta .product-desc {
  flex: 0;
  margin-bottom: 20px;
}

.fine-print {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.55;
}

.fine-print svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}

.noscript-card {
  margin-top: 18px;
  padding: 24px;
  border: 1px dashed var(--border-accent);
  border-radius: var(--radius);
  background: rgba(245, 185, 66, 0.04);
}

.noscript-card h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.noscript-card p {
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   9. Services, limits and process
   -------------------------------------------------------------------------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.service-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition:
    transform 0.25s var(--ease),
    border-color 0.25s ease;
}

.service-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
}

.service-card-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.service-card h3 {
  font-size: 1.12rem;
}

.service-card p {
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 0.9rem;
}

.service-points {
  display: grid;
  gap: 7px;
  margin-bottom: 22px;
}

.service-points li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--muted-strong);
  font-size: 0.8rem;
}

.service-points li::before {
  content: "";
  width: 5px;
  height: 5px;
  flex-shrink: 0;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.service-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-block: 4px;
  color: var(--accent-soft);
  font-size: 0.82rem;
  font-weight: 600;
}

.service-cta svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s ease;
}

.service-cta:hover svg {
  transform: translateX(3px);
}

.limits-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.limit-card {
  padding: 22px;
  border: 1px solid rgba(253, 230, 138, 0.18);
  border-radius: var(--radius);
  background: rgba(253, 230, 138, 0.03);
}

.limit-card svg {
  display: block;
  width: 20px;
  height: 20px;
  margin-bottom: 12px;
  color: var(--accent-soft);
}

.limit-card h3 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.limit-card p {
  color: var(--muted);
  font-size: 0.84rem;
}

.reference-note {
  margin-top: 22px;
  color: var(--muted);
  font-size: 0.78rem;
}

.reference-note a {
  color: var(--accent-soft);
  text-decoration: underline;
  text-decoration-color: rgba(253, 230, 138, 0.35);
  text-underline-offset: 3px;
}

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

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.process-step {
  position: relative;
  padding: 24px 22px;
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.process-step::after {
  content: "";
  position: absolute;
  top: 36px;
  right: -17px;
  width: 16px;
  height: 1px;
  background: rgba(245, 185, 66, 0.3);
}

.process-step:last-child::after {
  display: none;
}

.process-num {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
}

.process-step h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.process-step p {
  color: var(--muted);
  font-size: 0.86rem;
}

/* --------------------------------------------------------------------------
   10. FAQ
   -------------------------------------------------------------------------- */
.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}

.faq-head {
  position: sticky;
  top: calc(var(--header-h) + 28px);
  margin-bottom: 0;
}

.faq-list {
  border-top: 1px solid var(--border);
}

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

.faq-item h3 {
  margin: 0;
}

.faq-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 20px 2px;
  border: 0;
  background: none;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}

.faq-trigger:hover {
  color: var(--accent-soft);
}

.faq-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--accent);
  transition: transform 0.25s var(--ease);
}

.faq-trigger[aria-expanded="false"] .faq-icon {
  transform: rotate(0deg);
}

.faq-trigger[aria-expanded="true"] .faq-icon {
  transform: rotate(180deg);
}

.faq-panel {
  padding: 0 36px 22px 2px;
}

.faq-panel p {
  max-width: 66ch;
  color: var(--muted);
  font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   11. Contact and footer
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(36px, 6vw, 72px);
  align-items: start;
}

.contact-copy h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4.2vw, 3.2rem);
}

.contact-copy .lede {
  margin-bottom: 26px;
}

.contact-card {
  padding: 28px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.contact-list {
  display: grid;
  gap: 18px;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.contact-icon {
  display: inline-grid;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  place-items: center;
  border: 1px solid rgba(245, 185, 66, 0.18);
  border-radius: 12px;
  background: rgba(245, 185, 66, 0.07);
  color: var(--accent);
}

.contact-icon svg {
  width: 19px;
  height: 19px;
}

.contact-label {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.contact-value {
  display: block;
  overflow-wrap: anywhere;
  color: var(--text);
  font-size: 0.92rem;
}

.contact-link {
  display: inline-block;
  padding-block: 2px;
  color: var(--accent-soft);
}

.contact-link:hover {
  color: var(--accent);
}

.contact-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 0.76rem;
}

.contact-note svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}

.site-footer {
  padding: clamp(52px, 7vw, 76px) 0 96px;
  background: #080A0D;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.7fr) minmax(0, 0.9fr);
  gap: 40px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-tagline {
  margin-bottom: 12px;
  color: var(--muted-strong);
  font-size: 0.9rem;
}

.footer-credit {
  max-width: 38ch;
  color: var(--muted);
  font-size: 0.78rem;
}

.footer-nav h3,
.footer-contact h3 {
  margin-bottom: 16px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-nav ul,
.footer-contact ul {
  display: grid;
  gap: 9px;
}

.footer-nav a,
.footer-contact a,
.footer-contact span {
  color: var(--muted);
  font-size: 0.86rem;
}

.footer-nav a,
.footer-contact a {
  display: inline-block;
  padding-block: 3px;
}

.footer-nav a:hover,
.footer-contact a:hover {
  color: var(--accent-soft);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-size: 0.76rem;
}

/* --------------------------------------------------------------------------
   12. Floating WhatsApp button
   -------------------------------------------------------------------------- */
.whatsapp-float {
  position: fixed;
  right: clamp(16px, 4vw, 28px);
  bottom: clamp(16px, 4vw, 28px);
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 17px;
  border: 1px solid var(--accent-soft);
  border-radius: 999px;
  background: var(--accent);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow:
    0 14px 40px rgba(0, 0, 0, 0.45),
    0 0 0 6px rgba(245, 185, 66, 0.08);
  transition:
    transform 0.2s var(--ease),
    background-color 0.2s ease;
}

.whatsapp-float svg {
  width: 20px;
  height: 20px;
}

.whatsapp-float:hover {
  background: var(--accent-soft);
  transform: translateY(-2px);
}

body.nav-open .whatsapp-float {
  display: none;
}

/* --------------------------------------------------------------------------
   13. Motion
   -------------------------------------------------------------------------- */
@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 4px rgba(245, 185, 66, 0.12);
  }
  50% {
    box-shadow: 0 0 0 7px rgba(245, 185, 66, 0.03);
  }
}

@keyframes scan {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .hero-copy,
  .hero-visual {
    animation: none;
  }

  .panel:hover,
  .service-card:hover,
  .product-card:hover,
  .btn:hover,
  .whatsapp-float:hover {
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   14. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-visual {
    min-height: 380px;
    margin-top: 12px;
  }

  .signal-orbit-one {
    width: 380px;
    height: 380px;
  }

  .signal-orbit-two {
    width: 460px;
    height: 460px;
  }

  .about-grid,
  .limits-grid,
  .service-grid-three,
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-grid .panel:nth-child(3):last-child,
  .limits-grid .limit-card:nth-child(3):last-child,
  .service-grid-three .service-card:nth-child(3):last-child {
    grid-column: span 2;
  }

  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-step::after {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr;
  }

  .footer-contact {
    grid-column: span 2;
  }
}

@media (max-width: 900px) {
  .desktop-nav,
  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-grid;
  }

  .faq-layout {
    grid-template-columns: 1fr;
  }

  .faq-head {
    position: static;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .section-head-split {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  :root {
    --header-h: 64px;
  }

  .about-grid,
  .limits-grid,
  .service-grid,
  .service-grid-three {
    grid-template-columns: 1fr;
  }

  .about-grid .panel:nth-child(3):last-child,
  .limits-grid .limit-card:nth-child(3):last-child,
  .service-grid-three .service-card:nth-child(3):last-child {
    grid-column: auto;
  }

  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-contact {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .signal-card {
    transform: none;
  }

  .signal-orbit,
  .signal-chip {
    display: none;
  }

  .signal-row {
    grid-template-columns: 24px 1fr auto;
  }

  .signal-line {
    display: none;
  }

  .hero-visual {
    min-height: 340px;
  }
}

@media (max-width: 560px) {
  .product-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-proof {
    flex-direction: column;
    gap: 8px;
  }

  .hero h1 {
    font-size: clamp(2.35rem, 11vw, 3.2rem);
  }

  .capability-strip {
    gap: 8px 18px;
    font-size: 0.58rem;
  }

  .contact-card,
  .panel,
  .service-card {
    padding: 22px;
  }

  .section-head h2,
  .contact-copy h2 {
    font-size: clamp(1.8rem, 8vw, 2.4rem);
  }

  .footer-bottom {
    font-size: 0.72rem;
  }

  .whatsapp-float {
    width: 56px;
    height: 56px;
    justify-content: center;
    padding: 0;
  }

  .whatsapp-float-text {
    display: none;
  }
}

@media (max-width: 380px) {
  .container {
    padding-inline: 16px;
  }

  .signal-row {
    grid-template-columns: 20px 1fr;
  }

  .signal-tag {
    display: none;
  }

  .brand-name {
    font-size: 0.82rem;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }
}