/* ===== CSS Reset (modern, minimal) ===== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html:focus-within { scroll-behavior: smooth; }
body { min-height: 100vh; text-rendering: optimizeLegibility; line-height: 1.6; }
img, picture { max-width: 100%; display: block; }
input, button, textarea, select { font: inherit; }

/* ===== Theme ===== */
:root{
  --bg: #0b0c10;
  --surface: #111217;
  --muted: #8a8f98;
  --text: #e9eef5;
  --primary: #5aa9ff;   /* accent */
  --primary-ink: #0a1a2b;
  --ring: rgba(90,169,255,.35);
  --card: #151724;
  --border: #232536;
  --maxw: 1200px;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}

body{
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(90,169,255,.12), transparent 60%) , var(--bg);
  color: var(--text);
}

/* Utilities */
.container{ width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.section-head{ text-align: center; margin-bottom: 2.5rem; }
.section-head h2{ font-size: clamp(1.6rem, 1rem + 2vw, 2.2rem); letter-spacing: -0.02em; }
.section-head p{ color: var(--muted); max-width: 60ch; margin: .75rem auto 0; }

.button{
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem; height: 44px; padding: 0 18px;
  border-radius: 999px; border: 1px solid var(--border); text-decoration: none;
  color: var(--text); background: transparent; transition: .2s ease;
}
.button:hover{ border-color: var(--primary); box-shadow: 0 0 0 4px var(--ring); }
.button--primary{ background: var(--primary); color: var(--primary-ink); border-color: transparent; }
.button--primary:hover{ transform: translateY(-1px); box-shadow: 0 10px 22px rgba(90,169,255,.35); }
.button--ghost{ background: transparent; }

.w-full{ width: 100%; }

/* A11y */
.skip-link{
  position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden;
}
.skip-link:focus{ position: static; width: auto; height: auto; padding: .5rem 1rem; background: var(--primary); color: var(--primary-ink); }

/* ===== Header ===== */
.site-header{
  position: sticky; top: 0; z-index: 40; background: rgba(11,12,16,.6);
  backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,.06);
}
.header-inner{ display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 16px; height: 68px; }
.brand{ display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.brand-mark{ display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: var(--primary); color: var(--primary-ink); font-weight: 800; }
.nav ul{ display: flex; gap: 18px; list-style: none; align-items: center; }
.nav a{ color: var(--text); text-decoration: none; padding: 8px 10px; border-radius: 8px; }
.nav a:hover{ background: rgba(255,255,255,.06); }
.nav-cta a{ margin-left: 6px; }

/* Mobile nav */
.menu-toggle{ display: none; }
.hamburger{ display: none; cursor: pointer; width: 36px; height: 28px; position: relative; }
.hamburger span{ position: absolute; left: 0; right: 0; height: 2px; background: var(--text); transition: .2s; }
.hamburger span:nth-child(1){ top: 2px; }
.hamburger span:nth-child(2){ top: 13px; }
.hamburger span:nth-child(3){ bottom: 2px; }

.nav-mobile{
  display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 16px 24px 24px;
  background: var(--surface); border-bottom: 1px solid var(--border);
}
.nav-mobile ul{ list-style: none; display: grid; gap: 10px; }
#menu-toggle:checked ~ .nav-mobile{ display: block; }
#menu-toggle:checked + .hamburger span:nth-child(1){ transform: translateY(11px) rotate(45deg); }
#menu-toggle:checked + .hamburger span:nth-child(2){ opacity: 0; }
#menu-toggle:checked + .hamburger span:nth-child(3){ transform: translateY(-11px) rotate(-45deg); }

/* Responsive header */
@media (max-width: 920px){
  .nav{ display: none; }
  .hamburger{ display: inline-block; }
  .header-inner{ grid-template-columns: auto 1fr auto; }
}

/* ===== Hero ===== */
.hero{ padding: clamp(48px, 6vw, 96px) 0; }
.hero-inner{ display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.eyebrow{ font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.display{ font-size: clamp(2.8rem, 2rem + 3vw, 4rem); line-height: 1.05; letter-spacing: -0.02em; font-weight: 800; margin-top: 6px; }
.accent{ color: var(--primary); }
.lead{ color: #cfd6e1; margin-top: 12px; max-width: 60ch; }
.hero-actions{ margin-top: 22px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero-media .media-placeholder{
  aspect-ratio: 4 / 3; border-radius: var(--radius); background:
    radial-gradient(200px 120px at 30% 20%, rgba(90,169,255,.2), transparent 60%),
    linear-gradient(135deg, #1a1c2b, #0f101a);
  border: 1px solid var(--border); box-shadow: var(--shadow);
}

@media (max-width: 960px){
  .hero-inner{ grid-template-columns: 1fr; }
}

/* ===== Feature highlights ===== */
.features{ padding: 56px 0; }
.features-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card{
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
}
.feature-card .icon{
  width: 36px; height: 36px; border-radius: 10px; background: rgba(90,169,255,.2); border: 1px solid var(--border); margin-bottom: 10px;
}
.feature-card h3{ font-size: 1.05rem; margin-bottom: 6px; }
.feature-card p{ color: var(--muted); }

@media (max-width: 900px){
  .features-grid{ grid-template-columns: 1fr; }
}

/* ===== Services ===== */
.services{ padding: 72px 0; }
.cards{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card{
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0)) , var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; display: grid; gap: 8px;
}
.card h3{ font-size: 1.15rem; }
.card p{ color: var(--muted); }
.card-link{ color: var(--primary); text-decoration: none; font-weight: 600; margin-top: 6px; }
.card-link:hover{ text-decoration: underline; }

@media (max-width: 980px){
  .cards{ grid-template-columns: 1fr; }
}

/* ===== Clients ===== */
.clients{ padding: 36px 0 24px; }
.logo-strip{
  display: grid; grid-template-columns: repeat(5, minmax(120px,1fr)); gap: 14px; align-items: center; list-style: none;
}
.logo-item{ display: grid; place-items: center; }
.logo-placeholder{
  width: 100%; height: 56px; border: 1px dashed var(--border); border-radius: 12px; opacity: .8;
}

@media (max-width: 820px){
  .logo-strip{ grid-template-columns: repeat(3, 1fr); }
}

/* ===== Benefits (numbered) ===== */
.benefits{ padding: 56px 0; }
.benefits-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.benefit{
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; position: relative;
}
.benefit .num{
  position: absolute; top: 14px; right: 16px; font-weight: 800; font-size: 1.8rem; color: rgba(255,255,255,.08);
}
.benefit h3{ margin-bottom: 6px; }
.benefit p{ color: var(--muted); }

@media (max-width: 980px){
  .benefits-grid{ grid-template-columns: 1fr; }
}

/* ===== About ===== */
.about{ padding: 72px 0; }
.about-inner{ display: grid; grid-template-columns: 1.1fr .9fr; gap: 32px; align-items: center; }
.about-media .media-placeholder{
  aspect-ratio: 4 / 3; border-radius: var(--radius); background:
    radial-gradient(200px 120px at 70% 20%, rgba(90,169,255,.18), transparent 60%),
    linear-gradient(135deg, #1a1c2b, #0f101a);
  border: 1px solid var(--border); box-shadow: var(--shadow);
}

@media (max-width: 980px){
  .about-inner{ grid-template-columns: 1fr; }
}

/* ===== CTA ===== */
.cta{ padding: 56px 0; }
.cta-inner{
  background: linear-gradient(180deg, rgba(90,169,255,.08), transparent), var(--surface);
  border: 1px solid var(--border); border-radius: calc(var(--radius) + 4px);
  display: flex; gap: 18px; justify-content: space-between; align-items: center; padding: 22px 24px;
}
.cta h3{ font-size: 1.25rem; }
.cta p{ color: var(--muted); }

@media (max-width: 720px){
  .cta-inner{ flex-direction: column; align-items: flex-start; }
}

/* ===== Footer ===== */
.site-footer{ border-top: 1px solid rgba(255,255,255,.06); padding: 28px 0 48px; margin-top: 24px; background: #0b0c10; }
.footer-inner{ display: grid; grid-template-columns: 1fr auto auto; gap: 20px; align-items: start; }
.footer-brand p{ color: var(--muted); }
.footer-nav ul{ list-style: none; display: grid; gap: 6px; }
.footer-nav a{ color: var(--text); text-decoration: none; }
.footer-nav a:hover{ text-decoration: underline; }
.footer-meta p{ color: var(--muted); }

@media (max-width: 900px){
  .footer-inner{ grid-template-columns: 1fr; }
}