/* ================= HEADER ONLY (STANDALONE) ================= */

header{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;

  display: flex;
  justify-content: space-between;
  align-items: center;

  padding: var(--space-md, 24px) var(--space-xl, 64px);
  background-color: rgba(11, 15, 20, 0.9);
  backdrop-filter: blur(8px);
}

/* Logo */
header .logo a{ display: inline-flex; align-items: center; }
header .logo img{
  height: 32px;
  max-height: 32px;
  width: auto;
  object-fit: contain;
  display: block;
}

/* Top-level nav layout */
header .main-nav{
  display: flex;
  align-items: center;
}

/* Top-level links only */
header .main-nav > a{
  margin-left: var(--space-lg, 48px);
  text-decoration: none;
  font-size: 14px;
  color: var(--color-text-secondary, #cfd6e0);
}
header .main-nav > a:hover,
header .main-nav > a:focus{
  color: var(--color-accent, #4fd1c5);
  outline: none;
}

/* Hamburger */
header .nav-toggle{
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
}
header .nav-toggle span{
  width: 26px;
  height: 2px;
  background-color: #ffffff;
  display: block;
}

/* ================= DROPDOWN ================= */

header .nav-item--dropdown{
  position: relative;
  display: inline-flex;
  align-items: center;
}

header .nav-link--dropdown{
  margin-left: var(--space-lg, 48px);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  color: var(--color-text-secondary, #cfd6e0);
}
header .nav-link--dropdown:hover,
header .nav-link--dropdown:focus{
  color: var(--color-accent, #4fd1c5);
  outline: none;
}

/* Panel (desktop) */
header .dropdown{
  display: none;
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%);
  width: min(620px, calc(100vw - 48px));
  padding: 14px;
  border-radius: 12px;

  background-color: rgba(11, 15, 20, 0.98);
  border: 1px solid rgba(255,255,255,0.10);
  box-shadow: 0 18px 38px rgba(0,0,0,0.18);
  backdrop-filter: blur(8px);

  z-index: 1200;
}

/* Two columns */
header .dropdown__cols{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 18px;
}
header .dropdown__col{
  display: grid;
  gap: 8px;
}

/* Dropdown links must NOT inherit any global nav spacing */
header .dropdown a{
  margin: 0 !important;
  padding: 10px 10px;
  border-radius: 10px;

  color: var(--color-text-secondary, #cfd6e0);
  text-decoration: none;
  font-size: 14px;
  display: block;
}
header .dropdown a:hover,
header .dropdown a:focus{
  color: var(--color-accent, #4fd1c5);
  background: rgba(79, 209, 197, 0.10);
  outline: none;
}

/* Open states */
header .nav-item--dropdown.is-open .dropdown{ display: block; }

/* Hover open on desktop */
@media (hover:hover) and (min-width: 1025px){
  header .nav-item--dropdown:hover .dropdown,
  header .nav-item--dropdown:focus-within .dropdown{
    display: block;
  }
}

/* ================= MOBILE NAV (keeps your existing hamburger behavior) ================= */
@media (max-width: 1024px){
  header{ padding: var(--space-md, 24px); }

  header .nav-toggle{ display: flex; }

  header .main-nav{
    position: absolute;
    top: 100%;
    left: 0;

    width: 100%;
    background-color: rgba(11, 15, 20, 0.98);

    display: none;
    flex-direction: column;
    padding: 24px;
  }

  header .main-nav.is-open{ display: flex; }

  header .main-nav > a{
    margin: 16px 0;
    font-size: 16px;
  }

  header .nav-item--dropdown{
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }

  header .nav-link--dropdown{
    margin: 16px 0;
    font-size: 16px;
    width: 100%;
    text-align: left;
  }

  /* Dropdown becomes inline content inside opened hamburger menu */
  header .dropdown{
    position: static;
    transform: none;
    width: 100%;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
  }

  header .nav-item--dropdown.is-open .dropdown{ display: block; }

  header .dropdown__cols{ grid-template-columns: 1fr; gap: 6px; }
  header .dropdown a{ padding: 10px 0 10px 12px; }
}