/* ============================================================
   IntelliTech Dynamics — Global Stylesheet
   Color Palette:
     Deep Space:   #060B18
     Navy:         #0D1B2A
     Accent Blue:  #0EA5E9
     Accent Cyan:  #06B6D4
     White:        #FFFFFF
     Light Gray:   #F1F5F9
     Mid Gray:     #94A3B8
     Dark Text:    #E2E8F0
   ============================================================ */

/* ─── Reset & Base ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --deep:       #060B18;
  --navy:       #0D1B2A;
  --navy-light: #112236;
  --accent:     #0EA5E9;
  --cyan:       #06B6D4;
  --glow:       rgba(14, 165, 233, 0.18);
  --white:      #FFFFFF;
  --light:      #F1F5F9;
  --mid:        #94A3B8;
  --border:     rgba(14, 165, 233, 0.15);
  --gradient:   linear-gradient(135deg, #0EA5E9 0%, #06B6D4 100%);
  --font:       'Inter', 'Segoe UI', system-ui, sans-serif;
  --radius:     12px;
  --shadow:     0 4px 32px rgba(0,0,0,0.35);
  --transition: 0.25s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--deep);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ─── Typography ─────────────────────────────────────────── */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
p  { color: var(--mid); line-height: 1.75; }

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

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(14,165,233,0.1);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 50px;
  margin-bottom: 1rem;
}

/* ─── Layout ─────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
section { padding: 100px 0; }

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: 0 0 24px rgba(14,165,233,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(14,165,233,0.5);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  background: var(--glow);
}

/* ─── Navigation ─────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 24px;
  background: #000000;
  transition: background var(--transition), backdrop-filter var(--transition);
}

nav.scrolled {
  background: rgba(6, 11, 24, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 290px 1fr auto;
  align-items: center;
  height: 193px;
}

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 193px;
  width: 290px;
  object-fit: contain;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  justify-content: center;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--mid);
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--gradient);
  transition: width var(--transition);
  border-radius: 2px;
}

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta { margin-left: 12px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  grid-column: 3;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ─── Footer ─────────────────────────────────────────────── */
footer {
  background: var(--navy);
  border-top: 1px solid var(--border);
  padding: 64px 24px 32px;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-brand p {
  font-size: 0.9rem;
  margin-top: 16px;
  max-width: 480px;
  text-align: center;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-col {
  text-align: center;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: var(--mid);
  margin-bottom: 12px;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  max-width: 1200px;
  margin: 32px auto 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  font-size: 0.85rem;
  color: var(--mid);
  text-align: center;
}

/* ─── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
}

.card:hover {
  border-color: rgba(14,165,233,0.4);
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(14,165,233,0.1);
}

.card-icon {
  width: 52px; height: 52px;
  background: rgba(14,165,233,0.1);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

/* ─── Page Hero (inner pages) ────────────────────────────── */
.page-hero {
  padding: 221px 0 80px;
  text-align: center;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(14,165,233,0.12) 0%, transparent 70%);
}

.page-hero p {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 20px auto 0;
}

/* ─── Section Headers ────────────────────────────────────── */
.section-header { text-align: center; margin-bottom: 64px; }
.section-header p { max-width: 580px; margin: 16px auto 0; font-size: 1.05rem; }

/* ─── Divider ─────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0;
}

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 768px) {
  section { padding: 64px 0; }

  .page-hero { padding: 120px 0 60px; }

  .nav-inner {
    grid-template-columns: auto 1fr auto;
    height: 96px;
  }

  .nav-logo img {
    height: 80px;
    width: 120px;
  }

  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 96px; left: 0; right: 0;
    background: rgba(6,11,24,0.97);
    backdrop-filter: blur(16px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }

  .nav-links.open + .nav-cta {
    display: none;
  }

  .footer-grid {
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }