/* ============================================================
   EDISON TECH — Global Styles
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&family=Montserrat:wght@300;400;500;600;700&display=swap');

/* ── CSS Variables ── */
:root {
  --navy:       #19385C;
  --gold:       #C89938;
  --silver:     #A0A0A0;
  --blue-light: #74A7C7;
  --white:      #FFFFFF;
  --yellow:     #f9f723;
  --navy-dark:  #0f2540;
  --navy-mid:   #1e4575;
  --gold-light: #e0b355;
  --bg-section: #f5f7fa;
  --text-dark:  #1a1a2e;
  --text-mid:   #4a5568;

  --font-title: 'Poppins', sans-serif;
  --font-body:  'Montserrat', sans-serif;

  --radius:    12px;
  --radius-lg: 24px;
  --shadow:    0 4px 24px rgba(25, 56, 92, 0.12);
  --shadow-lg: 0 12px 48px rgba(25, 56, 92, 0.22);
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

/* ── Typography Helpers ── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-title);
  line-height: 1.2;
  font-weight: 700;
}

.section-label {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--navy);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-mid);
  max-width: 600px;
}

/* ── Container ── */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--gold);
  color: var(--navy);
}
.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(200, 153, 56, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--navy);
  transform: translateY(-2px);
}

.btn-navy {
  background: var(--navy);
  color: var(--white);
}
.btn-navy:hover {
  background: var(--navy-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(25, 56, 92, 0.35);
}

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(25, 56, 92, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.65rem 0;
  box-shadow: 0 4px 30px rgba(0,0,0,0.25);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo img {
  height: 52px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: var(--transition);
}

.navbar-logo img.logo-color {
  filter: none;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.navbar-nav a {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.9);
  position: relative;
  transition: var(--transition);
}

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

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--yellow);
}

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

.navbar-cta {
  background: var(--gold);
  color: var(--navy) !important;
  padding: 0.5rem 1.4rem;
  border-radius: 50px;
  font-weight: 700 !important;
}
.navbar-cta::after { display: none !important; }
.navbar-cta:hover {
  background: var(--yellow) !important;
  color: var(--navy) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(200,153,56,0.45);
}

/* ── Hamburger ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile nav ── */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .navbar-nav {
    position: fixed;
    top: 0; right: -100%;
    width: 80%; max-width: 320px;
    height: 100vh;
    background: var(--navy-dark);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    transition: right var(--transition);
    z-index: 999;
  }
  .navbar-nav.open { right: 0; }
  .navbar-nav a { font-size: 1.1rem; }
  .overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
  }
  .overlay.visible {
    opacity: 1;
    pointer-events: auto;
  }
}

/* ── Footer ── */
footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.75);
  padding: 3.5rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand img {
  height: 60px;
  margin-bottom: 1rem;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}

.footer-col ul li {
  margin-bottom: 0.6rem;
}

.footer-col ul li a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--gold); }

.social-links {
  display: flex;
  gap: 0.8rem;
  margin-top: 0.5rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  transition: var(--transition);
}
.social-links a:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 0.82rem; }

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}
.footer-bottom-links a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer-bottom-links a:hover { color: var(--gold); }

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Circuit Background Pattern ── */
.circuit-bg {
  position: relative;
  overflow: hidden;
}
.circuit-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(116,167,199,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(200,153,56,0.1) 0%, transparent 50%);
  pointer-events: none;
}

/* Circuit grid lines */
.circuit-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(116,167,199,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(116,167,199,0.07) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* ── Page Hero (inner pages) ── */
.page-hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, var(--navy-mid) 100%);
  padding: 10rem 0 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(116,167,199,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(116,167,199,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--white);
  margin-bottom: 1rem;
}

.page-hero h1 span { color: var(--gold); }

.page-hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin: 0 auto;
}

/* ── Utility ── */
.text-center { text-align: center; }
.text-gold { color: var(--gold); }
.text-navy { color: var(--navy); }
.text-white { color: var(--white); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(200,153,56,0.15);
  color: var(--gold);
  border: 1px solid rgba(200,153,56,0.3);
  border-radius: 50px;
  padding: 0.35rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.divider-gold {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 2px;
  margin: 1rem auto 1.5rem;
}