/* Header Styling */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.88); /* Sleek dark glassmorphism */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--transition-fast), height var(--transition-fast);
}

header.scrolled {
  height: 70px;
  background: rgba(15, 23, 42, 0.98);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

/* Dark Header Elements Override */
header .logo {
  color: #ffffff;
}

header .nav-link {
  color: rgba(255, 255, 255, 0.7);
}

header .nav-link:hover, header .nav-link.active {
  color: #ffffff;
}

header .hamburger span {
  background-color: #ffffff;
}


.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Logo Design */
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.logo-icon {
  position: relative;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid var(--primary);
  border-radius: 50%;
  border-top-color: transparent;
  animation: logo-spin 4s linear infinite;
  box-shadow: 0 0 10px rgba(2, 132, 199, 0.2);
}

.logo-dot {
  width: 12px;
  height: 12px;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
  border-radius: 50%;
  box-shadow: var(--shadow-neon-secondary);
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal);
}

.nav-link:hover::after, .nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  margin-left: 1rem;
}

/* Hamburger Menu Button */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 4px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* Footer Styling */
footer {
  background: #f8fafc;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  padding: 5rem 0 2rem 0;
  margin-top: 6rem;
  position: relative;
  overflow: hidden;
  z-index: 10;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 320px;
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border-glow);
  background: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 1.1rem;
  text-decoration: none;
  transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.social-icon:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 4px 10px rgba(2, 132, 199, 0.15);
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.02em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-link:hover {
  color: var(--primary);
  padding-left: 4px;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group-newsletter {
  display: flex;
  position: relative;
}

.newsletter-input {
  width: 100%;
  padding: 0.9rem 1.2rem;
  background: #ffffff;
  border: 1px solid var(--border-glow);
  border-radius: 50px 0 0 50px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.newsletter-input:focus {
  border-color: var(--primary);
}

.newsletter-btn {
  padding: 0 1.5rem;
  border-radius: 0 50px 50px 0;
  font-size: 0.9rem;
}

/* Bottom Bar */
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  padding-top: 2rem;
  font-size: 0.85rem;
  color: var(--text-dark);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--success);
  animation: pulse-green 2s infinite;
}

/* Animations for Logo & Status */
@keyframes logo-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes pulse-green {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 255, 135, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 8px rgba(0, 255, 135, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 255, 135, 0);
  }
}

/* Media Queries for Navigation & Grid Layouts */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  header {
    height: 70px;
  }
  
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-glow);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 3rem;
    gap: 2rem;
    transition: right var(--transition-normal);
  }

  .nav-menu.active {
    right: 0;
  }

  .hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .nav-cta {
    margin-left: 0;
    margin-top: 1rem;
    width: 100%;
  }

  .nav-cta .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}