/* ============================================================
   SHT Consultancy — Global Stylesheet
   Dark theme + neon accents · Space Grotesk / Inter
   ============================================================ */

/* ---------- Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

/* ---------- Design tokens ---------- */
:root {
  --bg:          #07090F;
  --bg-raise:    #0D1119;
  --bg-card:     #10151F;
  --line:        rgba(0, 229, 255, 0.12);
  --line-soft:   rgba(255, 255, 255, 0.07);
  --text:        #E8ECF3;
  --text-dim:    #9AA5B5;
  --neon:        #00E5FF;
  --neon-soft:   rgba(0, 229, 255, 0.14);
  --violet:      #7C5CFF;
  --violet-soft: rgba(124, 92, 255, 0.16);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --radius:      14px;
  --container:   1180px;
  --header-h:    72px;
  --ease:        cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--neon); text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); font-weight: 700; }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); font-weight: 600; }
p  { color: var(--text-dim); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
section { padding: 96px 0; position: relative; }
@media (max-width: 640px) { section { padding: 64px 0; } }

/* Eyebrow label */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: ''; width: 28px; height: 1px;
  background: var(--neon); box-shadow: 0 0 8px var(--neon);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.95rem;
  padding: 14px 28px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s;
}
.btn:hover { transform: translateY(-2px); }
.btn-neon {
  background: var(--neon); color: #04121A;
  box-shadow: 0 0 24px rgba(0,229,255,.35);
}
.btn-neon:hover { box-shadow: 0 0 40px rgba(0,229,255,.55); }
.btn-ghost {
  background: transparent; color: var(--text);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--neon); color: var(--neon); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  background: rgba(7, 9, 15, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
  transition: background .3s;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
}
.logo {
  font-family: var(--font-display); font-weight: 700; font-size: 1.25rem;
  color: var(--text); letter-spacing: -0.02em;
}
.logo span { color: var(--neon); text-shadow: 0 0 14px rgba(0,229,255,.6); }

.nav { display: flex; align-items: center; gap: 34px; }
.nav a {
  font-size: 0.92rem; font-weight: 500; color: var(--text-dim);
  position: relative; transition: color .2s;
}
.nav a::after {
  content: ''; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 2px; background: var(--neon);
  box-shadow: 0 0 8px var(--neon);
  transition: width .3s var(--ease);
}
.nav a:hover, .nav a.active { color: var(--text); }
.nav a:hover::after, .nav a.active::after { width: 100%; }
.nav .btn { padding: 10px 22px; font-size: 0.88rem; }
.nav a.btn::after { display: none; }
.nav a.btn-neon, .nav a.btn-neon:hover { color: #04121A; }

/* Logo mark */
.logo { display: inline-flex; align-items: center; }
.logo img { width: 34px; height: 34px; margin-right: 10px; filter: drop-shadow(0 0 8px rgba(0,229,255,.45)); }

/* Mobile nav */
.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 44px; height: 44px; position: relative; z-index: 110;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: var(--text);
  margin: 5px auto; transition: transform .3s var(--ease), opacity .3s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    height: calc(100vh - var(--header-h));
    height: calc(100svh - var(--header-h));
    z-index: 105;
    flex-direction: column; justify-content: center; gap: 34px;
    background: #07090F;
    border-top: 1px solid var(--line);
    opacity: 0; pointer-events: none;
    transform: translateY(-8px);
    transition: opacity .3s var(--ease), transform .3s var(--ease);
    overflow-y: auto;
  }
  .nav.open { opacity: 1; pointer-events: auto; transform: none; }
  .nav a { font-size: 1.3rem; }
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 34px 30px;
  position: relative; overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.card::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, var(--neon), var(--violet));
  transform: scaleX(0); transform-origin: left;
  transition: transform .4s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--line);
  box-shadow: 0 18px 44px rgba(0,0,0,.45), 0 0 0 1px rgba(0,229,255,.08);
}
.card:hover::before { transform: scaleX(1); }
.card-icon {
  width: 52px; height: 52px; border-radius: 12px;
  display: grid; place-items: center; margin-bottom: 20px;
  background: var(--neon-soft); color: var(--neon);
}
.card-icon svg { width: 26px; height: 26px; }
.card h3 { margin-bottom: 12px; }
.card p { font-size: 0.95rem; }

/* ---------- Grid helpers ---------- */
.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .1s; }
.reveal-d2 { transition-delay: .2s; }
.reveal-d3 { transition-delay: .3s; }

/* ---------- Hero (shared shell — content per page) ---------- */
.hero {
  min-height: 100svh;
  display: flex; align-items: center;
  padding: calc(var(--header-h) + 60px) 0 80px;
  position: relative; overflow: hidden;
}
.hero-inner { position: relative; z-index: 2; max-width: 780px; }
.hero p.lead {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  margin: 24px 0 36px; max-width: 620px;
}
.hero .btn-row { display: flex; gap: 16px; flex-wrap: wrap; }
.hero h1 .glow {
  background: linear-gradient(90deg, var(--neon), var(--violet));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* Signature: circuit grid backdrop + scanline */
.circuit-bg {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(0,229,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 40% 40%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 40% 40%, black 30%, transparent 75%);
}
.circuit-bg::after {
  content: ''; position: absolute; inset: 0 auto 0 0; width: 2px;
  background: linear-gradient(180deg, transparent, var(--neon), transparent);
  box-shadow: 0 0 22px var(--neon);
  animation: scan 7s linear infinite;
  opacity: .5;
}
@keyframes scan { from { left: -2%; } to { left: 102%; } }
.hero-orb {
  position: absolute; border-radius: 50%; filter: blur(90px); z-index: 0;
}
.orb-cyan   { width: 420px; height: 420px; background: rgba(0,229,255,.13); top: -80px; right: -80px; }
.orb-violet { width: 380px; height: 380px; background: rgba(124,92,255,.15); bottom: -120px; left: -60px; }

/* ---------- Stats / counters ---------- */
.stat { text-align: center; }
.stat .num {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  color: var(--neon); text-shadow: 0 0 26px rgba(0,229,255,.45);
}
.stat .label { color: var(--text-dim); font-size: 0.92rem; margin-top: 6px; }

/* ---------- Section headers ---------- */
.section-head { max-width: 680px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-head p { margin-top: 16px; }

/* ---------- Accordion (services expandables) ---------- */
.acc {
  border: 1px solid var(--line-soft); border-radius: var(--radius);
  background: var(--bg-card); margin-bottom: 16px; overflow: hidden;
  transition: border-color .3s;
}
.acc.open { border-color: var(--line); }
.acc-head {
  width: 100%; display: flex; align-items: center; gap: 18px;
  padding: 24px 26px; background: none; border: 0; cursor: pointer;
  color: var(--text); text-align: left;
}
.acc-head h3 { flex: 1; }
.acc-chevron {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  display: grid; place-items: center;
  border: 1px solid var(--line); color: var(--neon);
  transition: transform .35s var(--ease), background .3s;
}
.acc.open .acc-chevron { transform: rotate(180deg); background: var(--neon-soft); }
.acc-body {
  max-height: 0; overflow: hidden;
  transition: max-height .45s var(--ease);
}
.acc-body-inner { padding: 0 26px 28px; }
.acc-body-inner p { margin-bottom: 14px; }
.acc-body-inner ul { list-style: none; }
.acc-body-inner li {
  padding-left: 26px; position: relative; color: var(--text-dim);
  margin-bottom: 8px; font-size: 0.95rem;
}
.acc-body-inner li::before {
  content: '›'; position: absolute; left: 6px; color: var(--neon); font-weight: 700;
}

/* ---------- CTA banner ---------- */
.cta-banner {
  border: 1px solid var(--line); border-radius: 22px;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(0,229,255,.10), transparent 55%),
    radial-gradient(ellipse at 85% 100%, rgba(124,92,255,.12), transparent 55%),
    var(--bg-card);
  padding: 70px 40px; text-align: center;
}
.cta-banner h2 { margin-bottom: 16px; }
.cta-banner p { max-width: 560px; margin: 0 auto 32px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line-soft);
  background: var(--bg-raise);
  padding: 64px 0 30px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 44px; margin-bottom: 48px;
}
@media (max-width: 780px) { .footer-grid { grid-template-columns: 1fr; gap: 34px; } }
.footer-grid h4 {
  font-size: 0.82rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--text); margin-bottom: 18px;
}
.footer-grid p, .footer-grid a { font-size: 0.92rem; color: var(--text-dim); display: block; }
.footer-grid a { margin-bottom: 10px; transition: color .2s; }
.footer-grid a:hover { color: var(--neon); }
.footer-legal {
  border-top: 1px solid var(--line-soft); padding-top: 26px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 0.82rem; color: var(--text-dim);
}
.footer-legal a { color: var(--text-dim); }
.footer-legal a:hover { color: var(--neon); }

/* ---------- Hero with visual ---------- */
.hero-split {
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: 50px; align-items: center; position: relative; z-index: 2;
}
.hero-visual { position: relative; }
.hero-visual img { width: 100%; height: auto; }
.hero-visual::before {
  content: ''; position: absolute; inset: 10% 8%;
  background: radial-gradient(ellipse, rgba(0,229,255,.14), transparent 70%);
  filter: blur(30px); z-index: -1;
}
@media (max-width: 940px) {
  .hero-split { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 460px; }
}

/* Section visual */
.section-visual img { width: 100%; height: auto; }

/* ---------- Cookie / privacy banner ---------- */
.cookie-banner {
  position: fixed; left: 20px; right: 20px; bottom: 20px; z-index: 200;
  max-width: 620px; margin: 0 auto;
  background: rgba(13, 17, 25, 0.97);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,.6), 0 0 0 1px rgba(0,229,255,.06);
  padding: 22px 24px;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  transform: translateY(140%); opacity: 0;
  transition: transform .5s var(--ease), opacity .5s;
}
.cookie-banner.show { transform: none; opacity: 1; }
.cookie-banner p { flex: 1 1 280px; font-size: 0.88rem; margin: 0; }
.cookie-banner p a { text-decoration: underline; }
.cookie-banner .btn { padding: 10px 22px; font-size: 0.85rem; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* Solid header while mobile menu is open */
.site-header:has(.nav.open) { background: #07090F !important; }