/**
 * Header Styles
 *
 * Navigation, logo, and CTA button styling.
 *
 * @package Immersa_Builder
 * @since   1.0.0
 */

/* ============================================
   Header Base
   ============================================ */

.immersa-header {
  background-color: var(--immersa-bg, #FFFFFF);
  border-bottom: 1px solid var(--immersa-border, #E2E8F0);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--immersa-shadow, 0 1px 3px rgba(0,0,0,0.1));
}

.immersa-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--immersa-spacing-md, 1.5rem) 0;
  gap: var(--immersa-spacing-md, 1.5rem);
}

/* ============================================
   Logo
   ============================================ */

.immersa-header__logo img {
  max-height: 48px;
  width: auto;
}

.immersa-header__logo a {
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--immersa-secondary, #0F172A);
}

.immersa-header__logo a:hover {
  color: var(--immersa-primary, #2563EB);
}

/* ============================================
   Navigation
   ============================================ */

.immersa-header__nav {
  display: flex;
  align-items: center;
  gap: var(--immersa-spacing-md, 1.5rem);
}

.immersa-header__nav ul {
  display: flex;
  list-style: none;
  gap: var(--immersa-spacing-md, 1.5rem);
  margin: 0;
  padding: 0;
}

.immersa-header__nav li {
  position: relative;
  margin: 0;
}

.immersa-header__nav a {
  color: var(--immersa-text, #1E293B);
  font-weight: 500;
  text-decoration: none;
  padding: var(--immersa-spacing-xs, 0.5rem) 0;
  display: block;
  transition: color 0.2s ease;
}

.immersa-header__nav a:hover,
.immersa-header__nav a:focus {
  color: var(--immersa-primary, #2563EB);
  text-decoration: none;
}

/* Dropdown Sub-menus */
.immersa-header__nav ul ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background-color: var(--immersa-bg, #FFFFFF);
  border: 1px solid var(--immersa-border, #E2E8F0);
  border-radius: var(--immersa-border-radius, 8px);
  box-shadow: var(--immersa-shadow-lg, 0 10px 30px rgba(0,0,0,0.1));
  padding: var(--immersa-spacing-sm, 1rem) 0;
  flex-direction: column;
  gap: 0;
  z-index: 1001;
}

.immersa-header__nav ul li:hover > ul,
.immersa-header__nav ul li:focus-within > ul {
  display: block;
}

.immersa-header__nav ul ul a {
  padding: var(--immersa-spacing-xs, 0.5rem) var(--immersa-spacing-md, 1.5rem);
}

/* Dropdown Arrow */
.immersa-header__nav .menu-item-has-children > a::after {
  content: '▾';
  margin-left: 0.25rem;
  font-size: 0.75rem;
}

/* ============================================
   CTA Button
   ============================================ */

.immersa-header__cta {
  display: inline-block;
  background-color: var(--immersa-primary, #2563EB);
  color: #FFFFFF;
  padding: 0.625rem 1.25rem;
  border-radius: var(--immersa-border-radius, 8px);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: background-color 0.2s ease;
  white-space: nowrap;
}

.immersa-header__cta:hover {
  background-color: var(--immersa-primary-hover, #1D4ED8);
  text-decoration: none;
}

/* ============================================
   Mobile Menu Toggle
   ============================================ */

.immersa-header__nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--immersa-spacing-xs, 0.5rem);
  width: 44px;
  height: 44px;
  position: relative;
  z-index: 1002;
}

.immersa-header__nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--immersa-text, #1E293B);
  margin: 6px auto;
  transition: all 0.3s ease;
  border-radius: 2px;
}

.immersa-header__nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.immersa-header__nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.immersa-header__nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* ============================================
   Header: Centered
   ============================================ */

.immersa-header--centered .immersa-header__inner {
  flex-direction: column;
  text-align: center;
}

.immersa-header--centered .immersa-header__nav ul {
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   Header: Minimal
   ============================================ */

.immersa-header--minimal .immersa-header__inner {
  position: relative;
}

.immersa-header--minimal .immersa-header__nav-toggle {
  display: block;
}

.immersa-header--minimal .immersa-header__nav {
  display: none;
}

.immersa-header--minimal .immersa-header__nav.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--immersa-bg, #FFFFFF);
  padding: var(--immersa-spacing-md, 1.5rem);
  border-bottom: 1px solid var(--immersa-border, #E2E8F0);
  box-shadow: var(--immersa-shadow, 0 1px 3px rgba(0,0,0,0.1));
  z-index: 999;
}

.immersa-header--minimal .immersa-header__nav ul {
  flex-direction: column;
  gap: var(--immersa-spacing-sm, 1rem);
}

/* ============================================
   Sticky Header
   ============================================ */

.immersa-header.is-sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  animation: immersa-slideDown 0.3s ease;
}

@keyframes immersa-slideDown {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}