:root {
  --navy: #05204A;
  --sky: #2B8CFF;
  --accent: #E63946;
  --muted: #f4f7fa;
}

* {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Poppins", sans-serif;
  background-color: #ffffff;
  color: var(--navy);
  overflow-x: hidden;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 2rem;
  max-width: 1200px;
  margin: auto;
}

.logo-inline {
  height: 80px;
  transition: transform 0.3s ease;
}
.logo-inline:hover {
  transform: scale(1.05);
}

.nav {
  display: flex;
  gap: 1rem;
}
.nav-link {
  text-decoration: none;
  font-weight: 600;
  color: var(--navy);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  transition: 0.3s;
}
.nav-link:hover, .nav-link.active {
  background: linear-gradient(90deg, var(--sky), var(--accent));
  color: #fff;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 4rem 0;
  overflow: hidden;
  color: #fff;
}

.header-bg {
  position: absolute;
  inset: 0;
  background: url('../assets/background.jpg') center/cover no-repeat;
  filter: brightness(0.6);
  z-index: -2;
}
.header-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,61,145,0.7), rgba(0,0,0,0.7));
  z-index: -1;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 400px;
  align-items: center;
  max-width: 1200px;
  margin: auto;
  padding: 0 2rem;
}
.hero-left h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}
.lead {
  font-size: 1.1rem;
  line-height: 1.6;
  color: #e5e9f0;
}

/* WiFi Animation */
.wifi-anim {
  position: relative;
  width: 280px;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.router img {
  width: 200px;
  border-radius: 12px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}
.wifi-signal {
  position: absolute;
  border: 3px solid rgba(43,140,255,0.4);
  border-radius: 50%;
  animation: ping 2s infinite ease-out;
  opacity: 0;
}
.wifi-signal:nth-child(1) { width: 120px; height: 120px; animation-delay: 0s; }
.wifi-signal:nth-child(2) { width: 180px; height: 180px; animation-delay: 0.4s; }
.wifi-signal:nth-child(3) { width: 240px; height: 240px; animation-delay: 0.8s; }

@keyframes ping {
  0% { opacity: 0.8; transform: scale(0.4); }
  70% { opacity: 0.15; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.2); }
}

/* Plans */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(220px,1fr));
  gap: 1rem;
  margin: 2rem 0;
}
.plan {
  background: #fff;
  padding: 1.25rem;
  border-radius: 12px;
  text-align: center;
  border: 1px solid rgba(0,0,0,0.05);
  box-shadow: 0 6px 15px rgba(0,0,0,0.05);
  transition: 0.3s;
}
.plan:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 25px rgba(43,140,255,0.15);
}
.price {
  font-weight: bold;
  color: var(--navy);
  margin-top: 0.5rem;
}

/* FAQ */
details {
  margin: 1rem 0;
  background: #fff;
  padding: 1rem;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid rgba(0,0,0,0.05);
}

/* Footer */
.site-footer {
  background: var(--navy);
  color: #cfe6ff;
  padding: 1.5rem 2rem;
  text-align: center;
}

/* Loading Screen */
.loading-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(180deg, #001428, #000);
  color: #fff;
  z-index: 999;
  transition: opacity 0.5s ease;
}
.loader-content {
  text-align: center;
}
.loader-logo {
  height: 100px;
  margin-bottom: 10px;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

/* Fade In Animation */
.fadein {
  opacity: 0;
  animation: fadeIn 1.4s ease forwards;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media(max-width:900px){
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .nav { flex-wrap: wrap; justify-content: center; }
  .logo-inline { height: 70px; }
}