/**
 * Header UI — Student Point Sikar 2026
 *
 * Adapted 1:1 from the index.html homepage header design.
 * MUST enqueue AFTER style.css so the prefixed/class selectors below win
 * specificity ties against legacy rules (`.home header`, `header nav ul`).
 *
 * Reused design class names: .top-bar, .news-ticker, .ticker-track,
 * .site-header, .header-inner, .site-logo, .main-nav, .has-dropdown,
 * .nav-link-btn, .dropdown-menu, .mega-menu, .hamburger, .btn*.
 *
 * Design tokens are scoped to the header containers (NOT global :root) so
 * they cannot leak into / override the rest of the theme.
 */

.top-bar,
.site-header {
  --primary: #1565c0;
  --primary-dark: #0d47a1;
  --accent: #f9d67b;
  --accent-dark: #f0c44a;
  --dark: #1a1a2e;
  --gray: #5a6a85;
  --light-gray: #eef4ff;
  --border: #d0def5;
  --white: #ffffff;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all .3s ease;
  --font-head: "Sora", "Plus Jakarta Sans", sans-serif;
  --font-body: "DM Sans", "Archivo", sans-serif;
  --shadow-md: 0 8px 32px rgba(21, 101, 192, .14);
}

/* scoped container width (does not touch the theme's global .container) */
.top-bar .container,
.site-header .container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =================== TOP BAR =================== */
.top-bar {
  background: var(--primary);
  color: rgba(255, 255, 255, .85);
  font-size: 13px;
  padding: 8px 0;
  position: relative;
  overflow: hidden;
}

.top-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.top-bar-social {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-shrink: 0;
}

.top-bar-social a {
  color: rgba(255, 255, 255, .7);
  font-size: 13px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.top-bar-social a:hover {
  background: var(--accent);
  color: var(--primary);
  border-color: var(--accent);
}

.news-ticker {
  flex: 1;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 16px;
}

.ticker-label {
  background: var(--accent);
  color: var(--primary);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: .1em;
  padding: 3px 10px;
  border-radius: 4px;
  flex-shrink: 0;
  text-transform: uppercase;
}

.ticker-wrap {
  overflow: hidden;
  flex: 1;
}

.ticker-track {
  display: flex;
  gap: 0;
  width: max-content;
  white-space: nowrap;
  animation: ticker 30s linear infinite;
}

.news-ticker:hover .ticker-track {
  animation-play-state: paused;
}

.ticker-track span {
  padding-right: 60px;
}

.ticker-track a {
  color: var(--accent);
  text-decoration: underline;
}

@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.top-bar-right {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-shrink: 0;
  font-size: 12px;
}

.top-bar-right a {
  color: rgba(255, 255, 255, .75);
  text-decoration: none;
  transition: var(--transition);
}

.top-bar-right a:hover {
  color: var(--accent);
}

/* =================== HEADER (sticky) =================== */
/* `header.site-header` raises specificity to beat legacy `.home header`. */
header.site-header {
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0, 0, 0, .07);
  transition: box-shadow .3s ease;
}

header.site-header.is-scrolled {
  box-shadow: 0 2px 30px rgba(0, 0, 0, .12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 24px;
}

/* ---- logo (WP custom-logo + text fallback) ---- */
.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}

.site-logo img,
.site-logo .custom-logo {
  height: 52px;
  width: 52px;
  max-width: 52px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.logo-text {
  line-height: 1.2;
}

.logo-text strong {
  display: block;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  color: var(--primary);
}

.logo-text span {
  font-size: 11px;
  color: var(--gray);
  letter-spacing: .04em;
}

/* =================== MAIN NAV ===================
   Class selectors here outrank legacy bare `header nav ul` / `li a`. */
.main-nav ul {
  display: flex;
  gap: 4px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  display: block;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--dark);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
  text-decoration: none;
}

.main-nav a:hover,
.main-nav a.active,
.main-nav .current-menu-item > a {
  color: var(--primary);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transform: scaleX(0);
  transition: var(--transition);
}

.main-nav a:hover::after,
.main-nav a.active::after,
.main-nav .current-menu-item > a::after {
  transform: scaleX(1);
}

/* =================== DROPDOWN / MEGA MENU =================== */
.main-nav .has-dropdown {
  position: relative;
}

.main-nav .nav-link-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-body);
  position: relative;
  white-space: nowrap;
}

.main-nav .nav-link-btn::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transform: scaleX(0);
  transition: var(--transition);
}

.main-nav .has-dropdown:hover .nav-link-btn,
.main-nav .has-dropdown.open .nav-link-btn {
  color: var(--primary);
}

.main-nav .has-dropdown:hover .nav-link-btn::after,
.main-nav .has-dropdown.open .nav-link-btn::after {
  transform: scaleX(1);
}

.dropdown-chevron {
  font-size: 10px;
  transition: transform .25s ease;
}

.has-dropdown:hover .dropdown-chevron,
.has-dropdown.open .dropdown-chevron {
  transform: rotate(180deg);
}

/* Simple dropdown */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  min-width: 160px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
  z-index: 1000;
}

.has-dropdown:hover .dropdown-menu,
.has-dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--dark);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.dropdown-menu a::after { display: none; }

.dropdown-menu a:hover {
  background: var(--light-gray);
  color: var(--primary);
}

/* Mega menu */
.mega-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 420px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
  z-index: 1000;
}

.has-dropdown:hover .mega-menu,
.has-dropdown.open .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.mega-menu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.mega-col {
  padding: 4px;
}

.mega-col + .mega-col {
  border-left: 1px solid var(--border);
}

.mega-col-header {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gray);
  padding: 8px 10px 4px;
}

.mega-menu a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--dark);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.mega-menu a::after { display: none; }

.mega-menu a:hover {
  background: var(--light-gray);
  color: var(--primary);
}

/* =================== ACTIONS (CTA + hamburger) =================== */
.header-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-shrink: 0;
}

/* buttons (design .btn lives inline in index.html — replicated here, scoped) */
.header-actions .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 50px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.header-actions .btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.header-actions .btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.header-actions .btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.header-actions .btn-outline:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.header-actions .btn-sm {
  padding: 10px 20px;
  font-size: 13px;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =================== HEADER RESPONSIVE =================== */
@media (max-width: 900px) {
  .main-nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 80px;
    background: var(--white);
    border-top: 1px solid var(--border);
    box-shadow: 0 16px 40px rgba(0, 0, 0, .08);
    padding: 18px 24px 24px;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    transform: translateY(-18px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
    z-index: 999;
  }

  .main-nav.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .main-nav a {
    display: block;
    padding: 14px 16px;
    background: #fbfdff;
    border: 1px solid var(--border);
  }

  .main-nav .has-dropdown {
    width: 100%;
  }

  .main-nav .nav-link-btn {
    width: 100%;
    justify-content: space-between;
    padding: 14px 16px;
    background: #fbfdff;
    border: 1px solid var(--border);
  }

  .main-nav a::after,
  .main-nav .nav-link-btn::after {
    display: none;
  }

  .dropdown-menu,
  .mega-menu {
    position: static;
    width: 100%;
    transform: none;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    display: none;
    margin-top: 6px;
    background: var(--light-gray);
    border: none;
    border-radius: 0;
    padding: 4px 0 4px 12px;
  }

  .has-dropdown.open .dropdown-menu,
  .has-dropdown.open .mega-menu {
    display: block;
  }

  /* on touch, suppress hover-open; rely on .open click toggle */
  .has-dropdown:hover .dropdown-menu,
  .has-dropdown:hover .mega-menu {
    display: none;
  }
  .has-dropdown.open:hover .dropdown-menu,
  .has-dropdown.open:hover .mega-menu {
    display: block;
  }

  .mega-menu-grid {
    grid-template-columns: 1fr;
  }

  .mega-col + .mega-col {
    border-left: none;
    border-top: 1px solid var(--border);
  }

  .hamburger {
    display: block;
  }
}

@media (max-width: 768px) {
  .news-ticker { display: none; }
  .top-bar .container { justify-content: center; gap: 12px; }
}

@media (max-width: 480px) {
  .d-none-480 { display: none !important; }
  .logo-text span { display: none; }
  .top-bar-right span,
  .top-bar-right a:last-child { display: none; }
}