/* ============================================
   Header & Navigation
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  z-index: 1002;
}

.header:not(.scrolled) {
  background: linear-gradient(to bottom, rgba(17, 17, 17, 0.75) 0%, rgba(17, 17, 17, 0) 100%);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.header:not(.scrolled) .logo-text span {
  color: var(--color-primary);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--color-border);
}

.header.scrolled .nav-link {
  color: var(--color-text);
}

.header.scrolled .nav-link:hover,
.header.scrolled .nav-link.active {
  color: var(--color-primary);
}

.header.scrolled .logo-text {
  color: var(--color-text);
}

.header.scrolled .logo-text span {
  color: var(--color-primary);
}

.header.scrolled .header-phone {
  color: var(--color-text);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  min-width: 0;
}

.logo-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.logo-text {
  font-size: clamp(0.9rem, 2.5vw, 1.1rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.03em;
  transition: color var(--transition);
  white-space: nowrap;
}

.logo-text span {
  color: var(--color-primary);
  transition: color var(--transition);
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-link::after {
  display: none;
}

.nav-link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.12);
}

.nav-link.active {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
}

.header:not(.scrolled) .nav-link.active {
  background: rgba(227, 23, 18, 0.2);
  color: var(--color-white);
}

.header.scrolled .nav-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.header.scrolled .nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-white);
  transition: color var(--transition);
  white-space: nowrap;
}

.header-phone i {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  font-size: 0.75rem;
}

.header.scrolled .header-phone i {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.header-phone:hover {
  color: var(--color-white);
}

.header.scrolled .header-phone:hover {
  color: var(--color-primary);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.1);
}

.header.scrolled .hamburger:hover {
  background: var(--color-primary-soft);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
  margin: 0 auto;
}

.header.scrolled .hamburger span {
  background: var(--color-primary);
}

.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);
}

@media (max-width: 1024px) {
  .nav-links {
    gap: 2px;
  }

  .nav-link {
    padding: 8px 10px;
    font-size: 0.82rem;
  }

  .header-phone span,
  .header-phone {
    font-size: 0;
  }

  .header-phone i {
    width: 36px;
    height: 36px;
    font-size: 0.85rem;
  }
}

@media (max-width: 992px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(300px, calc(100vw - 56px));
    height: 100dvh;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: calc(var(--header-height) + var(--safe-top) + 16px) 16px calc(24px + var(--safe-bottom));
    gap: 2px;
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -8px 0 40px rgba(0, 0, 0, 0.12);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    z-index: 999;
    border-left: 1px solid var(--color-border);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-link {
    color: var(--color-text);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 15px 18px;
    margin: 0;
    border-radius: var(--radius-md);
    border-left: 3px solid transparent;
    display: flex;
    align-items: center;
    transition: color var(--transition), background var(--transition), border-color var(--transition);
  }

  .nav-link:hover {
    color: var(--color-text);
    background: var(--color-bg-alt);
    border-left-color: transparent;
  }

  .nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-soft);
    border-left-color: transparent;
    font-weight: 700;
    box-shadow: inset 3px 0 0 var(--color-primary);
  }

  .header.scrolled .nav-link,
  .header:not(.scrolled) .nav-link {
    color: var(--color-text);
  }

  .header.scrolled .nav-link.active,
  .header:not(.scrolled) .nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-soft);
    border-left-color: transparent;
    box-shadow: inset 3px 0 0 var(--color-primary);
  }

  .header.scrolled .nav-link:hover,
  .header:not(.scrolled) .nav-link:hover {
    color: var(--color-text);
    background: var(--color-bg-alt);
  }

  .header-phone {
    display: none;
  }

  .header-actions .btn--accent {
    display: none;
  }

  .nav-links::before {
    content: 'Menü';
    display: block;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    padding: 4px 18px 14px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 10px;
  }

  .nav-mobile-cta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
  }

  .nav-mobile-cta .btn {
    width: 100%;
    justify-content: center;
  }
}

.nav-mobile-cta {
  display: none;
}

@media (max-width: 480px) {
  .logo-text {
    font-size: 0.85rem;
  }

  .logo-icon {
    width: 36px;
    height: 36px;
  }
}