:root {
  --bg: #0B0F1A;
  --bg-alt: #10162A;
  --surface: #151C31;
  --surface-hover: #1B2440;
  --border: rgba(255,255,255,0.08);
  --text: #F5F7FA;
  --text-muted: #A6B0C3;
  --accent: #3D8BFF;
  --accent-2: #00E5C7;
  --gradient: linear-gradient(135deg, #3D8BFF 0%, #00E5C7 100%);
  --font-heading: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --radius: 14px;
  --max-width: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.8rem); }
h3 { font-size: 1.2rem; margin-bottom: 10px; }

p { margin: 0 0 16px; color: var(--text-muted); }

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  z-index: 1000;
}
.skip-link:focus { left: 12px; top: 12px; }

.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 1.08rem;
  max-width: 640px;
  margin-bottom: 44px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, opacity 0.15s ease;
}
.btn-primary {
  background: var(--gradient);
  color: #06101A;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(61,139,255,0.35); }
.btn-outline {
  border-color: var(--border);
  color: var(--text);
  background: rgba(255,255,255,0.02);
}
.btn-outline:hover { border-color: var(--accent-2); background: rgba(0,229,199,0.06); }
.btn-sm { padding: 10px 20px; font-size: 0.88rem; }
.btn-block { width: 100%; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,15,26,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}
.logo-sub {
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}
.main-nav {
  display: flex;
  gap: 32px;
  font-size: 0.95rem;
  font-weight: 500;
}
.main-nav a { color: var(--text-muted); transition: color 0.15s ease; }
.main-nav a:hover { color: var(--text); }

.header-actions { display: flex; align-items: center; gap: 20px; }

.lang-switch, .footer-lang {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
}
.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 6px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.82rem;
}
.lang-btn[aria-pressed="true"] { color: var(--accent-2); }
.lang-sep { color: var(--border); }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 11px;
  width: 44px;
  height: 44px;
}
.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 8px 24px 20px;
  border-top: 1px solid var(--border);
}
.mobile-nav a {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
.mobile-nav.open { display: flex; }

/* Hero */
.hero { position: relative; overflow: hidden; padding-top: 88px; }
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 400px at 15% 10%, rgba(61,139,255,0.20), transparent 60%),
    radial-gradient(700px 500px at 85% 30%, rgba(0,229,199,0.15), transparent 60%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  padding-bottom: 72px;
  max-width: 820px;
}
.hero-subtitle {
  font-size: 1.15rem;
  max-width: 620px;
  margin-bottom: 36px;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

.value-bar {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}
.value-bar-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 40px;
  padding: 22px 24px;
  justify-content: space-between;
}
.value-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}
.value-icon { font-size: 1.1rem; }

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,229,199,0.35);
  background: var(--surface-hover);
}
.service-icon {
  font-size: 1.8rem;
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(61,139,255,0.12);
  margin-bottom: 18px;
}
.service-card p { margin-bottom: 0; font-size: 0.96rem; }

/* Why */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.why-item {
  border-top: 2px solid transparent;
  border-image: var(--gradient) 1;
  padding-top: 20px;
}
.why-item p { font-size: 0.95rem; margin-bottom: 0; }

/* About */
.about-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}
.about-text p { font-size: 1.02rem; }
.about-visual { display: flex; justify-content: center; }
.about-card {
  position: relative;
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 40px;
}
.about-card-glow {
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle, rgba(0,229,199,0.15), transparent 60%);
  z-index: 0;
}

/* Contact */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-info { margin-top: 28px; display: flex; flex-direction: column; gap: 18px; }
.contact-info-item { display: flex; flex-direction: column; gap: 4px; }
.contact-info-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
}
.contact-info-item a { color: var(--accent-2); font-weight: 600; }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); }
.form-row input, .form-row textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem; /* 16px minimum: prevents iOS Safari auto-zoom on focus */
  resize: vertical;
}
.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--accent-2);
}
.form-note {
  font-size: 0.88rem;
  color: var(--accent-2);
  margin: 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding-top: 48px;
  background: var(--bg-alt);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  padding-bottom: 32px;
}
.footer-brand p { margin-top: 8px; font-size: 0.9rem; }
.footer-nav { display: flex; gap: 24px; font-size: 0.92rem; }
.footer-nav a { color: var(--text-muted); }
.footer-nav a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 24px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.footer-bottom p { margin: 0; }

/* Responsive */
@media (max-width: 960px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner, .contact-inner { grid-template-columns: 1fr; }
  .about-visual { order: -1; max-width: 260px; margin: 0 auto; }
}

@media (max-width: 760px) {
  .main-nav, .header-actions { display: none; }
  .menu-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .value-bar-inner { justify-content: flex-start; }
  .section { padding: 64px 0; }
  .contact-form { padding: 24px 20px; }
  .footer-lang .lang-btn { padding: 10px 8px; }
  .footer-inner { flex-direction: column; }
}

@media (max-width: 480px) {
  .hero-ctas .btn, .hero-ctas a { flex: 1 1 100%; text-align: center; }
  .value-bar-inner { gap: 14px 24px; }
  .value-item { font-size: 0.86rem; }
  .contact-form { padding: 20px 16px; }
}