/**
 * SITE HEADER
 * وابسته به: styles/base/tokens.css
 * استفاده در PHP: template-parts/sections/header.php
 * جفت جاوااسکریپت: js/components/nav-toggle.js
 */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 251, 245, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-6);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-width: 0;
}

/* --- لوگوتایپ --- */

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-black);
  color: var(--color-heading);
  min-width: 0;
}

.site-logo:hover {
  color: var(--color-heading);
}

.site-logo__mark {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  object-fit: contain;
}

.site-logo__mark svg {
  width: 100%;
  height: 100%;
}

.site-logo__text-wrap {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.site-logo__tagline {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
}

/* --- ناوبری --- */

.site-nav__list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin: 0;
  padding: 0;
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  padding: var(--space-2) var(--space-1);
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-primary);
}

.site-nav__link:focus-visible,
.site-logo:focus-visible,
.nav-toggle:focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 4px;
}

.site-nav__link.is-active::after {
  content: "";
  position: absolute;
  right: 0;
  left: 0;
  bottom: -2px;
  height: 2px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
}

/* --- اکشن‌های سمت راست هدر --- */

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

body.has-open-nav {
	overflow: hidden;
}

/* --- دکمه همبرگری (فقط موبایل/تبلت) --- */

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: var(--tap-target-min);
  height: var(--tap-target-min);
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.nav-toggle:hover {
  background-color: var(--color-sofreh-200);
}

.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: var(--radius-full);
  background-color: var(--color-brown-950);
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
}

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

@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }
}

/* --- حالت موبایل/تبلت: پنل منوی کشویی تمام‌صفحه --- */

@media (max-width: 1023.98px) {
  html.has-js .site-nav {
    position: fixed;
    inset-inline: 0;
    top: 72px;
    bottom: 0;
    background-color: var(--color-bg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition:
      opacity var(--transition-base),
      transform var(--transition-base),
      visibility var(--transition-base);
    overflow-y: auto;
  }

  html.has-js .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-6);
  }

  .site-nav__link {
    width: 100%;
    min-height: var(--tap-target-min);
    padding: var(--space-3) 0;
    font-size: var(--font-size-md);
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav__link.is-active::after {
    display: none;
  }
}

@media (max-width: 479.98px) {
  .site-header__inner {
    padding-inline: var(--space-4);
    gap: var(--space-2);
  }

  .site-header__actions {
    gap: var(--space-1);
  }

  .site-logo__mark {
    width: 38px;
    height: 38px;
  }

  .site-logo__text {
    font-size: var(--font-size-md);
  }
}

@media (min-width: 1024px) {
  .site-nav {
    position: static;
  }
  .site-nav__list {
    flex-direction: row;
  }
}