/*
 * ============================================================
 * YAHYA AGRICOLA CATTLE RANGE — Header Styles
 * Developer: Mohammed Imran, Softomatic BD Limited
 * ============================================================
 */

/* ── TOP BAR ──────────────────────────────────────────────── */
.topbar {
  background: var(--bg-topbar);
  border-bottom: 1px solid var(--border-gold);
  padding: 0.4rem 0;
  font-size: var(--text-xs);
  color: var(--text-muted);
  transition: var(--transition-theme);
}

.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.topbar a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.topbar a:hover {
  color: var(--gold);
}

.topbar-concern {
  color: var(--gold-light);
  font-weight: var(--weight-medium);
}

/* ── MAIN HEADER ──────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              background 0.3s ease,
              box-shadow 0.3s ease,
              padding 0.3s ease;
}

/* Auto-hide when scrolling down */
.site-header.header-hidden {
  transform: translateY(-100%);
}

.site-header.has-topbar {
  top: 0;
}

.header-main {
  background: transparent;
  padding: 1.2rem 0;
  transition: all var(--transition-base);
}

.site-header.scrolled .header-main {
  background: var(--bg-header);
  padding: 0.75rem 0;
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-gold);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* ── LOGO ─────────────────────────────────────────────────── */
.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.header-logo:hover {
  opacity: 0.9;
}

.logo-img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  filter: drop-shadow(0 2px 8px rgba(201, 168, 76, 0.3));
}

.site-header.scrolled .logo-img {
  width: 46px;
  height: 46px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  white-space: nowrap;
  line-height: 1.2;
}

.logo-tagline {
  font-family: var(--font-accent);
  font-size: 0.85rem;
  letter-spacing: 4px;
  color: var(--gold);
  text-transform: uppercase;
  margin-top: 2px;
}

/* ── NAV ──────────────────────────────────────────────────── */
.header-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  position: relative;
  padding: 0.5rem 0.875rem;
  font-family: var(--font-english);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  letter-spacing: 0.3px;
}

/* Bengali lang nav */
body.lang-bn .nav-link {
  font-family: var(--font-body);
  font-size: 0.9rem;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--gold);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: calc(100% - 1.75rem);
}

/* ── HEADER CONTROLS ──────────────────────────────────────── */
.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  background: var(--badge-bg);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: var(--weight-semi);
  letter-spacing: 0.5px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: transparent;
  border: none;
  font-family: var(--font-english);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.lang-btn.active {
  background: var(--gold);
  color: #0D1F0F;
}

.lang-btn:not(.active):hover {
  color: var(--text-primary);
}

/* Theme Toggle */
.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--badge-bg);
  border: 1px solid var(--border-gold);
  color: var(--gold);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--gold);
  color: #0D1F0F;
  transform: rotate(20deg);
}

/* Order CTA Button */
.header-cta {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #0D1F0F !important;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  letter-spacing: 0.3px;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-gold);
  white-space: nowrap;
  border: 2px solid var(--gold);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--gold-glow);
  color: #0D1F0F !important;
}

/* ── HAMBURGER ────────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  background: var(--badge-bg);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.hamburger:hover {
  background: var(--border-gold);
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transition: all var(--transition-base);
  display: block;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── MOBILE MENU ──────────────────────────────────────────── */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: calc(var(--z-overlay) - 1);
  padding: 6rem var(--space-6) var(--space-8);
  flex-direction: column;
  overflow-y: auto;
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity var(--transition-base), transform var(--transition-base);
  pointer-events: none;
}

.mobile-menu.open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  padding: var(--space-4) var(--space-4);
  font-size: var(--text-xl);
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition-fast);
  gap: var(--space-3);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--gold);
  padding-left: var(--space-6);
}

.mobile-nav-link .nav-arrow {
  margin-left: auto;
  color: var(--gold);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.mobile-nav-link:hover .nav-arrow {
  opacity: 1;
}

.mobile-controls {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.mobile-cta {
  width: 100%;
  text-align: center;
  justify-content: center;
  padding: 1rem;
  font-size: var(--text-base);
}

/* ── HEADER OFFSET (for page content) ────────────────────── */
.header-offset {
  padding-top: 100px; /* Adjust if topbar shown */
}

.header-offset-no-topbar {
  padding-top: 80px;
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .header-cta { display: none; }
}

@media (max-width: 900px) {
  .header-nav { display: none; }
  .hamburger  { display: flex; }
  .topbar-left .topbar-hours { display: none; }
}

@media (max-width: 600px) {
  .logo-text  { display: none; }
  .topbar .topbar-right { display: none; }
  .topbar .container { justify-content: center; }
}