/* Header styles for ElectroTechra */

.et-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 13, 28, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(135, 206, 250, 0.18);
  color: #f5f7fb;
}

.et-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.et-header__brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.et-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: inherit;
}

.et-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: radial-gradient(circle at 30% 20%, #7ee0ff 0, #1b9cff 40%, #0c1524 75%);
  box-shadow: 0 0 0 1px rgba(126, 224, 255, 0.4), 0 10px 25px rgba(0, 0, 0, 0.45);
}

.et-header__logo-text {
  font-family: "Rajdhani", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.95rem;
  white-space: nowrap;
}

.et-header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.75rem;
}

.et-header__nav-list {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.et-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0;
  font-size: 0.9rem;
  color: #d3ddff;
  text-decoration: none;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-family: "Rajdhani", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.et-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #7ee0ff, #9fb4ff);
  transition: width 0.2s ease-out;
}

.et-header__nav-link:hover::after,
.et-header__nav-link:focus-visible::after {
  width: 100%;
}

.et-header__nav-link:hover,
.et-header__nav-link:focus-visible {
  color: #ffffff;
}

.et-header__nav-link:focus-visible {
  outline: 2px solid #7ee0ff;
  outline-offset: 3px;
}

.et-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.et-header__action-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-family: "Roboto", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid transparent;
  text-decoration: none;
  transition: background-color 0.18s ease-out, color 0.18s ease-out, border-color 0.18s ease-out, box-shadow 0.18s ease-out, transform 0.1s ease-out;
}

.et-header__action-link--outline {
  background: transparent;
  border-color: rgba(158, 183, 255, 0.7);
  color: #e2e8ff;
}

.et-header__action-link--outline:hover,
.et-header__action-link--outline:focus-visible {
  background: rgba(158, 183, 255, 0.12);
  box-shadow: 0 0 0 1px rgba(158, 183, 255, 0.7);
}

.et-header__action-link--primary {
  background: linear-gradient(135deg, #1b9cff, #7ee0ff);
  color: #050b16;
  font-weight: 600;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.45);
}

.et-header__action-link--primary:hover,
.et-header__action-link--primary:focus-visible {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.et-header__action-link:focus-visible {
  outline: 2px solid #7ee0ff;
  outline-offset: 2px;
}

/* Mobile toggle */

.et-header__toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(158, 183, 255, 0.5);
  background: radial-gradient(circle at 30% 20%, rgba(126, 224, 255, 0.12), rgba(4, 10, 22, 0.96));
  padding: 0;
  cursor: pointer;
}

.et-header__toggle-bar {
  position: absolute;
  left: 9px;
  right: 9px;
  height: 2px;
  border-radius: 999px;
  background: #f5f7fb;
  transition: transform 0.18s ease-out, opacity 0.18s ease-out, top 0.18s ease-out, bottom 0.18s ease-out;
}

.et-header__toggle-bar:nth-child(1) {
  top: 12px;
}

.et-header__toggle-bar:nth-child(2) {
  top: 19px;
}

.et-header__toggle-bar:nth-child(3) {
  bottom: 12px;
}

.et-header__toggle:focus-visible {
  outline: 2px solid #7ee0ff;
  outline-offset: 3px;
}

.et-header--menu-open .et-header__toggle-bar:nth-child(1) {
  top: 19px;
  transform: rotate(45deg);
}

.et-header--menu-open .et-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.et-header--menu-open .et-header__toggle-bar:nth-child(3) {
  bottom: 19px;
  transform: rotate(-45deg);
}

/* Responsive layout */

@media (max-width: 799px) {
  .et-header__inner {
    padding-inline: 1rem;
  }

  .et-header__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .et-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 56px;
    background: rgba(5, 13, 28, 0.99);
    border-top: 1px solid rgba(135, 206, 250, 0.18);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    flex-direction: column;
    align-items: flex-start;
    padding: 0.75rem 1rem 1.25rem;
    gap: 1rem;
    transition: transform 0.2s ease-out, opacity 0.2s ease-out, visibility 0.2s ease-out;
  }

  .et-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 0.35rem;
  }

  .et-header__nav-link {
    width: 100%;
    padding-block: 0.45rem;
  }

  .et-header__actions {
    width: 100%;
    justify-content: flex-start;
  }

  .et-header__action-link {
    flex: 1 1 auto;
    text-align: center;
  }

  .et-header--menu-open .et-header__nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
}

@media (min-width: 800px) {
  .et-header__nav {
    position: static;
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
  }
}

/* Respect reduced motion */

@media (prefers-reduced-motion: reduce) {
  .et-header__nav,
  .et-header__toggle-bar,
  .et-header__nav-link::after,
  .et-header__action-link {
    transition: none !important;
  }
}