/* ==========================================================================
   GK CyberTech — design system
   Hand-written, zero-dependency CSS. No build step, no CDN framework.
   Sections: 1 tokens · 2 reset · 3 layout · 4 typography · 5 buttons
             6 components · 7 header · 8 hero · 9 sections · 10 forms
             11 footer · 12 motion · 13 responsive
   ========================================================================== */

/* ── 1. Tokens ─────────────────────────────────────────────────────────── */
:root {
  /* brand */
  --navy:        #0a2540;
  --navy-600:    #0f3a63;
  --navy-700:    #0b2c4d;
  --navy-900:    #061a2e;
  --brand:       #06b6d4;
  --brand-dark:  #0891b2;
  --brand-light: #22d3ee;
  --accent:      #6366f1;
  --amber:       #f59e0b;

  /* neutrals */
  --ink:      #0f172a;
  --slate-700:#334155;
  --slate-600:#475569;
  --slate-500:#64748b;
  --slate-400:#94a3b8;
  --slate-300:#cbd5e1;
  --slate-200:#e2e8f0;
  --slate-100:#f1f5f9;
  --mist:     #f8fafc;
  --white:    #ffffff;

  /* type */
  --font-sans:    'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Plus Jakarta Sans', var(--font-sans);

  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-lg:   1.0625rem;
  --fs-xl:   clamp(1.125rem, 0.4vw + 1.05rem, 1.25rem);
  --fs-h3:   clamp(1.125rem, 0.5vw + 1rem, 1.25rem);
  --fs-h2:   clamp(1.75rem, 2vw + 1.15rem, 2.5rem);
  --fs-h1:   clamp(2.25rem, 4vw + 1rem, 3.75rem);
  --fs-display: clamp(2.5rem, 5vw + 1rem, 4.25rem);

  /* space */
  --gutter:  clamp(1.25rem, 4vw, 2rem);
  --section: clamp(4rem, 7vw, 6.5rem);
  --maxw:    1120px;

  /* shape + depth */
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-full: 999px;

  --shadow-sm:   0 1px 2px rgba(10, 37, 64, .06), 0 4px 12px rgba(10, 37, 64, .05);
  --shadow-md:   0 12px 28px rgba(10, 37, 64, .10);
  --shadow-lg:   0 24px 60px rgba(10, 37, 64, .14);
  --shadow-glow: 0 18px 40px rgba(6, 182, 212, .38);

  --ring: 0 0 0 3px rgba(6, 182, 212, .35);

  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.65;
  color: var(--slate-600);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
svg { flex: none; }

a { color: var(--brand-dark); text-decoration: none; }
a:hover { color: var(--navy); }

button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--navy);
  line-height: 1.15;
  letter-spacing: -0.022em;
  margin: 0;
  font-weight: 800;
}

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

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

::selection { background: rgba(6, 182, 212, .22); color: var(--navy); }

.skip-link {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, -120%);
  z-index: 200;
  background: var(--navy);
  color: #fff;
  padding: .7rem 1.2rem;
  border-radius: 0 0 var(--r-md) var(--r-md);
  font-size: var(--fs-sm);
  font-weight: 600;
  transition: transform .2s var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); color: #fff; }

.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;
}

/* ── 3. Layout ─────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: 780px; }
.container--reading { max-width: 720px; }

.section { padding-block: var(--section); }
.section--tight { padding-block: clamp(2.5rem, 4vw, 3.5rem); }
.section--mist { background: var(--mist); }
.section--fade { background: linear-gradient(to bottom, var(--mist), var(--white)); }
.section--dark {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-600) 55%, var(--navy-700) 100%);
  color: rgba(255, 255, 255, .75);
  position: relative;
  overflow: hidden;
}
.section--dark h2, .section--dark h3 { color: #fff; }

.grid { display: grid; gap: clamp(1rem, 2vw, 1.5rem); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.stack > * + * { margin-top: 1rem; }
.center { text-align: center; }
.cluster { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }

/* ── 4. Typography ─────────────────────────────────────────────────────── */
.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand-dark);
}
.section--dark .eyebrow { color: var(--brand-light); }

.h1 { font-size: var(--fs-h1); }
.h2 { font-size: var(--fs-h2); }
.h3 { font-size: var(--fs-h3); }

.lede {
  font-size: var(--fs-xl);
  color: var(--slate-600);
  line-height: 1.6;
}
.section--dark .lede { color: rgba(255, 255, 255, .78); }

.muted { color: var(--slate-500); }
.small { font-size: var(--fs-sm); }

.gradient-text {
  background: linear-gradient(100deg, var(--brand-light) 0%, #7dd3fc 45%, #fff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-head {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: clamp(2.25rem, 4vw, 3.25rem);
}
.section-head .h2 { margin-top: .5rem; }
.section-head p { margin-top: .85rem; }

/* ── 5. Buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: .9rem 1.6rem;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
              background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 1rem; height: 1rem; transition: transform .25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

.btn--primary {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn--primary:hover { color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-glow); }

.btn--dark { background: var(--navy); color: #fff; box-shadow: var(--shadow-md); }
.btn--dark:hover { color: #fff; background: var(--navy-600); transform: translateY(-2px); }

.btn--ghost {
  border-color: rgba(255, 255, 255, .32);
  color: #fff;
  background: rgba(255, 255, 255, .04);
}
.btn--ghost:hover { color: #fff; border-color: #fff; background: rgba(255, 255, 255, .12); }

.btn--outline { border-color: var(--slate-200); color: var(--navy); background: #fff; }
.btn--outline:hover { border-color: var(--navy); color: var(--navy); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

.btn--sm { padding: .6rem 1.05rem; font-size: var(--fs-xs); border-radius: var(--r-sm); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--brand-dark);
  font-size: var(--fs-sm);
}
.link-arrow svg { width: 1rem; height: 1rem; transition: transform .25s var(--ease); }
.link-arrow:hover { color: var(--navy); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ── 6. Components ─────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: .45rem .9rem;
  border-radius: var(--r-full);
  border: 1px solid rgba(255, 255, 255, .22);
  background: rgba(255, 255, 255, .1);
  color: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
}
.badge .dot {
  width: .45rem; height: .45rem; border-radius: 50%;
  background: var(--brand-light);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, .7);
  animation: pulse 2.4s infinite;
}

.pill {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--brand-dark);
  background: rgba(6, 182, 212, .1);
  padding: .3rem .6rem;
  border-radius: var(--r-full);
}

/* icon tile */
.itile {
  display: grid;
  place-items: center;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: var(--r-md);
  color: #fff;
  background: linear-gradient(135deg, var(--navy) 0%, var(--brand) 100%);
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease);
}
.itile svg { width: 1.4rem; height: 1.4rem; }
.itile--sm { width: 2.6rem; height: 2.6rem; border-radius: var(--r-sm); }
.itile--sm svg { width: 1.15rem; height: 1.15rem; }
.itile--brand { background: linear-gradient(135deg, var(--brand) 0%, var(--brand-light) 100%); }
.itile--soft { background: rgba(6, 182, 212, .12); color: var(--brand-dark); box-shadow: none; }

/* card */
.card {
  position: relative;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--slate-200);
  border-radius: var(--r-lg);
  padding: clamp(1.5rem, 2.4vw, 1.9rem);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--navy), var(--brand));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card:hover::before { transform: scaleX(1); }
.card:hover .itile { transform: scale(1.08); }
.card .h3 { margin-top: 1.1rem; }
.card p { margin-top: .55rem; font-size: var(--fs-sm); }
.card .pill { position: absolute; top: 1.4rem; right: 1.4rem; }

/* glass card (on dark) */
.glass {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--r-lg);
  padding: 1.35rem;
  backdrop-filter: blur(10px);
  transition: background-color .3s var(--ease), transform .3s var(--ease);
}
.glass:hover { background: rgba(255, 255, 255, .13); transform: translateY(-4px); }
.glass h3 { font-size: var(--fs-base); font-weight: 700; margin-top: .9rem; }
.glass p { margin-top: .35rem; font-size: var(--fs-sm); color: rgba(255, 255, 255, .72); }

/* feature list */
.checks { margin-top: 1.15rem; display: grid; gap: .55rem; }
.checks li {
  display: flex;
  gap: .6rem;
  align-items: flex-start;
  font-size: var(--fs-sm);
  color: var(--slate-600);
}
.checks svg { width: 1.05rem; height: 1.05rem; color: var(--brand-dark); margin-top: .28rem; }

/* FAQ — native <details>, no JS */
.faq { display: grid; gap: .75rem; }
.faq__item {
  border: 1px solid var(--slate-200);
  border-radius: var(--r-md);
  background: #fff;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.faq__item[open] { border-color: var(--brand); box-shadow: var(--shadow-sm); }
.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 1.25rem;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--navy);
  list-style: none;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--brand-dark); }
.faq__sign {
  position: relative;
  flex: none;
  width: 1.1rem;
  height: 1.1rem;
}
.faq__sign::before,
.faq__sign::after {
  content: "";
  position: absolute;
  inset: 50% 0 auto 0;
  height: 2px;
  border-radius: 2px;
  background: var(--brand-dark);
  transition: transform .25s var(--ease);
}
.faq__sign::after { transform: rotate(90deg); }
.faq__item[open] .faq__sign::after { transform: rotate(0); }
.faq__answer { padding: 0 1.25rem 1.25rem; }
.faq__answer p { font-size: var(--fs-sm); color: var(--slate-600); }

/* stars */
.stars { display: inline-flex; gap: .12rem; color: var(--amber); }
.stars svg { width: 1rem; height: 1rem; fill: currentColor; stroke: none; }

/* marquee */
.marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
  display: flex;
  width: max-content;
  gap: 3rem;
  align-items: center;
  animation: marquee 32s linear infinite;
}
.marquee span {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--slate-300);
  white-space: nowrap;
  letter-spacing: -0.01em;
}
.marquee:hover .marquee__track { animation-play-state: paused; }

/* stat */
.stat__value {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 3.4vw, 3rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  background: linear-gradient(180deg, #fff 25%, var(--brand-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat__label { margin-top: .5rem; font-size: var(--fs-sm); color: rgba(255, 255, 255, .68); }

/* process */
.steps { position: relative; }
.steps__line {
  display: none;
  position: absolute;
  top: 2.35rem;
  left: 16%;
  right: 16%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--slate-300), transparent);
}
.step { position: relative; text-align: center; }
.step__icon {
  position: relative;
  z-index: 1;
  margin-inline: auto;
  width: 4.6rem;
  height: 4.6rem;
  border-radius: var(--r-lg);
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--navy) 0%, var(--brand) 100%);
  box-shadow: var(--shadow-md);
}
.step__icon svg { width: 1.6rem; height: 1.6rem; }
.step__num {
  position: absolute;
  top: -.5rem;
  right: -.5rem;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  color: var(--navy);
  font-size: var(--fs-xs);
  font-weight: 800;
  font-family: var(--font-display);
  box-shadow: var(--shadow-sm);
}
.step h3 { margin-top: 1.25rem; }
.step p { margin-top: .55rem; font-size: var(--fs-sm); max-width: 20rem; margin-inline: auto; }

/* quote */
.quote { text-align: center; }
.quote__mark { color: var(--brand); margin-inline: auto; }
.quote__mark svg { width: 2.5rem; height: 2.5rem; }
.quote blockquote {
  margin: 1.25rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.6vw + .85rem, 1.7rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.quote__author { margin-top: 1.6rem; display: flex; gap: .8rem; align-items: center; justify-content: center; }
.avatar {
  width: 2.75rem; height: 2.75rem;
  border-radius: 50%;
  display: grid; place-items: center;
  color: #fff;
  font-weight: 800;
  font-family: var(--font-display);
  background: linear-gradient(135deg, var(--navy), var(--brand));
}

/* CTA panel */
.cta-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  padding: clamp(2.75rem, 5vw, 3.75rem) clamp(1.5rem, 4vw, 3.5rem);
  text-align: center;
  color: #fff;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-600) 55%, var(--navy-700) 100%);
  box-shadow: var(--shadow-lg);
}
.cta-panel p { margin-top: .85rem; color: rgba(255, 255, 255, .8); max-width: 34rem; margin-inline: auto; }
.cta-panel .btn { margin-top: 1.75rem; }

/* decorative glow blobs */
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.blob--brand { background: rgba(6, 182, 212, .3); }
.blob--indigo { background: rgba(99, 102, 241, .22); }

/* article */
.prose p { margin-top: 1.15rem; font-size: var(--fs-lg); line-height: 1.8; color: var(--slate-600); }
.prose p:first-child { margin-top: 0; }
.prose p:first-child::first-letter {
  font-family: var(--font-display);
  font-size: 3.1rem;
  font-weight: 800;
  float: left;
  line-height: .85;
  padding: .2rem .55rem 0 0;
  color: var(--navy);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
  font-size: var(--fs-sm);
  color: var(--slate-500);
}
.meta .sep { width: 3px; height: 3px; border-radius: 50%; background: var(--slate-300); }

/* post card */
.post-card { display: flex; flex-direction: column; height: 100%; }
.post-card h3 { margin-top: .85rem; font-size: var(--fs-xl); }
.post-card p { margin-top: .65rem; }
.post-card .link-arrow { margin-top: auto; padding-top: 1.25rem; }

/* ── 7. Header ─────────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), background-color .3s var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--slate-200);
  box-shadow: 0 1px 20px rgba(10, 37, 64, .06);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.brand__mark {
  width: 2.3rem;
  height: 2.3rem;
  border-radius: var(--r-sm);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: .8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--navy) 0%, var(--brand) 100%);
  box-shadow: var(--shadow-sm);
}
.brand:hover { color: var(--navy); }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav a {
  position: relative;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--slate-500);
  transition: color .2s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transition: transform .25s var(--ease);
}
.nav a:hover { color: var(--navy); }
.nav a:hover::after,
.nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav a[aria-current="page"] { color: var(--navy); }

.nav-toggle {
  display: none;
  color: var(--navy);
  padding: .4rem;
  border-radius: var(--r-sm);
}
.nav-toggle svg { width: 1.6rem; height: 1.6rem; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }

.mobile-nav {
  display: none;
  border-top: 1px solid var(--slate-200);
  background: #fff;
}
.mobile-nav.is-open { display: block; }
.mobile-nav a {
  display: block;
  padding: .8rem 0;
  font-weight: 600;
  color: var(--slate-600);
  border-bottom: 1px solid var(--slate-100);
}
.mobile-nav a:last-of-type { border-bottom: 0; }
.mobile-nav a[aria-current="page"] { color: var(--navy); }
.mobile-nav .btn { width: 100%; justify-content: center; margin: .85rem 0 1.25rem; }

/* ── 8. Hero ───────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-600) 55%, var(--navy-700) 100%);
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(120% 80% at 50% 0%, #000 30%, transparent 75%);
  mask-image: radial-gradient(120% 80% at 50% 0%, #000 30%, transparent 75%);
}
.hero__inner {
  position: relative;
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
  padding-block: clamp(3.5rem, 7vw, 6.5rem) clamp(4rem, 8vw, 7rem);
}
.hero h1 { color: #fff; font-size: var(--fs-display); margin-top: 1.4rem; }
.hero .lede { margin-top: 1.4rem; max-width: 34rem; }
.hero .cluster { margin-top: 2rem; gap: .85rem; }
.hero__rating { margin-top: 2rem; display: flex; align-items: center; gap: .75rem; font-size: var(--fs-sm); color: rgba(255, 255, 255, .7); }

.hero__panel { position: relative; }
.hero__cards { display: grid; gap: 1rem; }
.hero__cards .glass:nth-child(even) { transform: translateY(1.75rem); }
.hero__cards .glass:nth-child(even):hover { transform: translateY(1.25rem); }

.hero__float {
  position: absolute;
  bottom: -1.25rem;
  right: -.75rem;
  z-index: 3;
  display: none;
  align-items: center;
  gap: .8rem;
  background: #fff;
  color: var(--navy);
  border-radius: var(--r-lg);
  padding: .85rem 1.1rem;
  box-shadow: var(--shadow-lg);
  animation: float 6s ease-in-out infinite;
}
.hero__float strong { display: block; font-family: var(--font-display); font-size: 1.05rem; line-height: 1.1; }
.hero__float span { font-size: var(--fs-xs); color: var(--slate-500); }

.hero__wave { display: block; width: 100%; height: auto; margin-bottom: -1px; }

/* compact page hero */
.page-hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-600) 60%, var(--navy-700) 100%);
  padding-block: clamp(3rem, 6vw, 4.75rem) clamp(3.5rem, 6vw, 5rem);
  text-align: center;
}
.page-hero h1 { color: #fff; font-size: var(--fs-h1); margin-top: .9rem; }
.page-hero .lede { margin-top: 1.1rem; margin-inline: auto; max-width: 40rem; }
.page-hero .container { position: relative; }

/* ── 9. Section extras ─────────────────────────────────────────────────── */
.logos-label {
  text-align: center;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--slate-400);
  margin-bottom: 1.75rem;
}

.service-row {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: start;
  padding-block: clamp(1.75rem, 3vw, 2.5rem);
  border-top: 1px solid var(--slate-200);
}
.service-row:first-of-type { border-top: 0; padding-top: 0; }
.service-row__head { display: flex; gap: 1rem; align-items: flex-start; }
.service-row h2 { font-size: var(--fs-xl); }
.service-row p { margin-top: .5rem; font-size: var(--fs-sm); }

.info-card {
  background: #fff;
  border: 1px solid var(--slate-200);
  border-radius: var(--r-lg);
  padding: clamp(1.5rem, 3vw, 2rem);
  box-shadow: var(--shadow-sm);
}
.info-list { display: grid; gap: 1.1rem; margin-top: 1.5rem; }
.info-list li { display: flex; gap: .9rem; align-items: center; }
.info-list dt { font-size: var(--fs-xs); font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--slate-400); }
.info-list dd { margin: .15rem 0 0; font-weight: 600; color: var(--navy); font-size: var(--fs-sm); }
.info-list a { color: var(--navy); }
.info-list a:hover { color: var(--brand-dark); }

.social-row { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.75rem; }
.social-row a {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--slate-200);
  color: var(--slate-500);
  transition: all .25s var(--ease);
}
.social-row a:hover { color: #fff; background: var(--navy); border-color: var(--navy); transform: translateY(-2px); }
.social-row svg { width: 1.05rem; height: 1.05rem; }

/* 404 */
.error-page { text-align: center; padding-block: clamp(4rem, 10vw, 8rem); }
.error-code {
  font-family: var(--font-display);
  font-size: clamp(5rem, 16vw, 9rem);
  font-weight: 800;
  line-height: .9;
  letter-spacing: -0.05em;
  background: linear-gradient(135deg, var(--navy), var(--brand));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ── 10. Forms ─────────────────────────────────────────────────────────── */
.form { display: grid; gap: 1.1rem; }
.field { display: grid; gap: .45rem; }
.field label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--navy);
  font-family: var(--font-display);
}
.field .req { color: var(--brand-dark); }
.field input,
.field textarea {
  width: 100%;
  padding: .85rem 1rem;
  border: 1px solid var(--slate-200);
  border-radius: var(--r-md);
  background: var(--white);
  font-size: var(--fs-sm);
  color: var(--ink);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field textarea { min-height: 9.5rem; resize: vertical; }
.field input::placeholder,
.field textarea::placeholder { color: var(--slate-400); }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: var(--ring);
}
.field .error {
  font-size: var(--fs-xs);
  color: #dc2626;
  min-height: 1rem;
}
.field.has-error input,
.field.has-error textarea { border-color: #dc2626; }
.field.has-error input:focus,
.field.has-error textarea:focus { box-shadow: 0 0 0 3px rgba(220, 38, 38, .22); }

.form .btn { justify-content: center; }
.form__note { font-size: var(--fs-xs); color: var(--slate-500); }

.alert {
  display: none;
  gap: .85rem;
  align-items: flex-start;
  padding: 1.1rem 1.25rem;
  border-radius: var(--r-md);
  border: 1px solid rgba(6, 182, 212, .3);
  background: rgba(6, 182, 212, .08);
  color: var(--navy);
  font-size: var(--fs-sm);
}
.alert.is-visible { display: flex; }
.alert svg { width: 1.2rem; height: 1.2rem; color: var(--brand-dark); margin-top: .15rem; }

/* newsletter */
.newsletter { display: flex; gap: .5rem; margin-top: .9rem; }
.newsletter input {
  flex: 1 1 auto;
  min-width: 0;
  padding: .65rem .85rem;
  border-radius: var(--r-sm);
  border: 1px solid rgba(255, 255, 255, .14);
  background: rgba(255, 255, 255, .06);
  color: #fff;
  font-size: var(--fs-sm);
}
.newsletter input::placeholder { color: var(--slate-500); }
.newsletter input:focus { outline: none; border-color: var(--brand); box-shadow: var(--ring); }
.newsletter button {
  padding: .65rem 1rem;
  border-radius: var(--r-sm);
  background: var(--brand);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: 700;
  font-family: var(--font-display);
  transition: background-color .2s var(--ease);
}
.newsletter button:hover { background: var(--brand-dark); }

/* ── 11. Footer ────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--navy);
  color: var(--slate-400);
  padding-block: clamp(3rem, 5vw, 4rem) 1.75rem;
}
.site-footer .brand { color: #fff; }
.site-footer .brand__mark { background: linear-gradient(135deg, var(--navy-600), var(--brand)); }
.site-footer__grid { display: grid; gap: clamp(2rem, 4vw, 2.75rem); }
.site-footer h4 {
  color: #fff;
  font-size: var(--fs-xs);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-weight: 700;
}
.site-footer a { color: var(--slate-400); font-size: var(--fs-sm); }
.site-footer a:hover { color: var(--brand-light); }
.site-footer ul li { padding-block: .3rem; }
.site-footer .tagline { margin-top: .9rem; font-size: var(--fs-sm); max-width: 20rem; color: var(--slate-400); }
.site-footer__bottom {
  margin-top: 2.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, .1);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-sm);
}
.site-footer__social { display: flex; gap: 1.15rem; }

/* ── 12. Motion ────────────────────────────────────────────────────────── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(22px, -20px) scale(1.08); }
  66% { transform: translate(-16px, 14px) scale(.95); }
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 211, 238, .6); }
  70% { box-shadow: 0 0 0 8px rgba(34, 211, 238, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0); }
}

.drift { animation: drift 20s ease-in-out infinite; }

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .75s var(--ease), transform .75s var(--ease);
  transition-delay: var(--d, 0ms);
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ── 13. Responsive ────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .nav { display: none; }
  .nav-toggle { display: block; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .grid--2, .grid--3 { grid-template-columns: minmax(0, 1fr); }
  .hero__cards { grid-template-columns: minmax(0, 1fr); }
  .hero__cards .glass:nth-child(even) { transform: none; }
  .hero__cards .glass:nth-child(even):hover { transform: translateY(-4px); }
  .btn { width: 100%; justify-content: center; }
  .hero .cluster .btn { width: 100%; }
  .site-footer__bottom { flex-direction: column; align-items: flex-start; }
}

@media (min-width: 641px) {
  .hero__cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 768px) {
  .steps__line { display: block; }
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .service-row { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); }
}

@media (min-width: 901px) {
  .hero__inner { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); }
  .hero__float { display: flex; }
  .site-footer__grid { grid-template-columns: 1.7fr 1fr 1.1fr 1.4fr; }
  .contact-grid { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); }
}