/* =============================================
   HADI — Global Styles
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&display=swap');

:root {
  --dark-blue: #010b19;
  --dark-blue-2: #050f22;
  --teal: #00aab1;
  --teal-dim: rgba(0, 170, 177, 0.15);
  --teal-glow: rgba(0, 170, 177, 0.08);
  --bright-blue: #0646a5;
  --bright-blue-dim: rgba(6, 70, 165, 0.2);
  --white: #ffffff;
  --white-60: rgba(255,255,255,0.6);
  --white-30: rgba(255,255,255,0.3);
  --white-10: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.1);
  --font: 'Geist', 'Inter', system-ui, sans-serif;
  --max-w: 1200px;
  --nav-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--dark-blue);
  color: var(--white);
  font-family: var(--font);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* =============================================
   TYPOGRAPHY
   ============================================= */

h1, h2, h3, h4, h5 {
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.8rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.1rem; font-weight: 600; }

p { color: var(--white-60); font-weight: 300; }

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

/* =============================================
   LAYOUT
   ============================================= */

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

section { padding: 100px 0; }

/* =============================================
   MESH GRADIENT BACKGROUNDS
   ============================================= */

.mesh-bg {
  background:
    radial-gradient(ellipse 80% 60% at 10% 20%, rgba(0, 170, 177, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 80%, rgba(6, 70, 165, 0.22) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(0, 170, 177, 0.05) 0%, transparent 70%),
    var(--dark-blue);
}

.mesh-bg-alt {
  background:
    radial-gradient(ellipse 70% 50% at 80% 20%, rgba(6, 70, 165, 0.25) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 70%, rgba(0, 170, 177, 0.15) 0%, transparent 55%),
    var(--dark-blue-2);
}

/* =============================================
   NAV
   ============================================= */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background 0.3s, border-bottom 0.3s;
}

.nav.scrolled {
  background: rgba(1, 11, 25, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.nav__logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav__logo span {
  color: var(--teal);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav__links a {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--white-60);
  transition: color 0.2s;
  letter-spacing: 0.01em;
}

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

.nav__cta {
  background: var(--teal);
  color: var(--dark-blue) !important;
  font-weight: 600 !important;
  padding: 10px 22px;
  border-radius: 6px;
  font-size: 0.88rem !important;
  transition: opacity 0.2s !important;
}

.nav__cta:hover { opacity: 0.85; color: var(--dark-blue) !important; }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s;
}

/* =============================================
   BUTTONS
   ============================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.btn-primary {
  background: var(--teal);
  color: var(--dark-blue);
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--teal); color: var(--teal); }

.btn-ghost {
  background: transparent;
  color: var(--teal);
  padding: 0;
  gap: 6px;
  font-weight: 500;
}
.btn-ghost:hover { gap: 10px; }

/* =============================================
   TAGS / LABELS
   ============================================= */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--teal-dim);
  color: var(--teal);
  border: 1px solid rgba(0,170,177,0.25);
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tag::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--teal);
  border-radius: 50%;
}

/* =============================================
   SECTION LABELS
   ============================================= */

.section-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--teal);
}

/* =============================================
   DIVIDER
   ============================================= */

.divider {
  width: 100%;
  height: 1px;
  background: var(--border);
}

/* =============================================
   CARDS
   ============================================= */

.card {
  background: var(--white-10);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  transition: border-color 0.3s, transform 0.3s;
}

.card:hover {
  border-color: rgba(0,170,177,0.3);
  transform: translateY(-4px);
}

/* =============================================
   FOOTER
   ============================================= */

.footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer__brand p {
  margin-top: 12px;
  font-size: 0.9rem;
  max-width: 260px;
}

.footer__col h5 {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white-60);
  margin-bottom: 20px;
}

.footer__col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.footer__col ul a {
  font-size: 0.9rem;
  color: var(--white-60);
  transition: color 0.2s;
}
.footer__col ul a:hover { color: var(--teal); }

.footer__bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__bottom p {
  font-size: 0.82rem;
  color: var(--white-30);
}

/* =============================================
   ANIMATIONS
   ============================================= */

.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }

/* =============================================
   PAGE HERO (inner pages)
   ============================================= */

.page-hero {
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 70% at 70% 50%, rgba(0, 170, 177, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 20% 30%, rgba(6, 70, 165, 0.15) 0%, transparent 55%);
  pointer-events: none;
}

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(1, 11, 25, 0.98);
    backdrop-filter: blur(20px);
    padding: 32px;
    gap: 24px;
    border-bottom: 1px solid var(--border);
  }
  .nav__links.open a { font-size: 1.1rem; }
  .footer__inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  section { padding: 72px 0; }
}

@media (max-width: 600px) {
  .container { padding: 0 20px; }
  h1 { font-size: 2.4rem; }
  h2 { font-size: 1.8rem; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: 8px; text-align: center; }
}