/* Header Section - Isolated CSS with Grid Technology */

:root {
  --color-primary: #e3c37a;
  --color-text-light: #ffffff;
  --color-text-medium: #b1b1b1;
  --color-background-dark: #232228;
  --font-main: 'Montserrat', sans-serif;
  --font-display: 'Cormorant Garamond', serif;
}

/* Header Grid Layout */
.site-header {
  grid-area: header;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  grid-template-areas: "logo nav phone mobile";
  align-items: center;
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(177, 177, 177, 0.16);
  position: relative;
  z-index: 10;
  transition: all 0.3s ease;
}

/* Logo Styles */
.logo {
  grid-area: logo;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 400;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-image {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.logo-divider {
  display: inline-block;
  width: 1px;
  height: 15px;
  background-color: var(--color-text-light);
}

/* Navigation Styles */
.main-nav {
  grid-area: nav;
  justify-self: center;
}

.main-nav ul {
  display: grid;
  grid-template-columns: repeat(6, auto);
  gap: 28px;
}

.main-nav a {
  font-size: 14px;
  color: var(--color-text-medium);
  position: relative;
  padding-bottom: 27px;
  transition: color 0.3s ease;
}

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

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-primary);
}

/* Phone Number */
.header-phone {
  grid-area: phone;
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--color-primary);
  justify-self: end;
}

/* Mobile Navigation Toggle */
.mobile-nav-toggle {
  grid-area: mobile;
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  position: relative;
  width: 30px;
  height: 30px;
}

/* Hamburger Icon */
.hamburger {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--color-text-light);
  position: relative;
  transition: all 0.3s ease;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 3px;
  background-color: var(--color-text-light);
  transition: all 0.3s ease;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

/* Hamburger Animation */
.mobile-nav-toggle.active .hamburger {
  background-color: transparent;
}

.mobile-nav-toggle.active .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.mobile-nav-toggle.active .hamburger::after {
  transform: rotate(-45deg);
  top: 0;
}

/* Fullscreen Menu */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(35, 34, 40, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-nav-overlay.active {
  display: flex;
  opacity: 1;
}

.mobile-nav-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  position: relative;
}

.mobile-nav-close {
  position: absolute;
  top: 30px;
  right: 30px;
  background: none;
  border: none;
  color: var(--color-text-light);
  font-size: 24px;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color 0.3s ease;
}

.mobile-nav-close:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.mobile-nav-close span {
  position: absolute;
  width: 20px;
  height: 2px;
  background-color: var(--color-text-light);
  transition: all 0.3s ease;
}

.mobile-nav-close span:first-child {
  transform: rotate(45deg);
}

.mobile-nav-close span:last-child {
  transform: rotate(-45deg);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav-list a {
  font-size: 24px;
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 0.3s ease;
  position: relative;
}

.mobile-nav-list a:hover {
  color: var(--color-primary);
}

.mobile-nav-list a.active {
  color: var(--color-primary);
  font-weight: 600;
}

.mobile-nav-phone {
  margin-top: 50px;
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--color-primary);
  text-align: center;
}

/* Responsive Design for Header */

/* Large Desktop (1200px+) - полная навигация */
@media (min-width: 1200px) {
  .site-header {
    gap: 40px;
  }
  
  .main-nav ul {
    gap: 40px;
  }
}

/* Desktop (992px-1199px) - пропорциональное сжатие */
@media (max-width: 1199px) and (min-width: 993px) {
  .site-header {
    gap: 20px;
  }
  
  .main-nav ul {
    gap: 20px;
  }
  
  .main-nav a {
    font-size: 13px;
  }
  
  .header-phone {
    font-size: 15px;
  }
}

/* Tablet (768px-992px) - скрываем навигацию, показываем гамбургер */
@media (max-width: 992px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
    grid-template-areas: "logo phone mobile";
    gap: 20px;
  }
  
  .main-nav {
    display: none;
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  .header-phone {
    font-size: 15px;
    justify-self: center;
  }
}

/* Mobile (до 576px) */
@media (max-width: 576px) {
  .site-header {
    padding: 15px 0;
    grid-template-columns: auto 1fr auto;
    grid-template-areas: "logo phone mobile";
    gap: 15px;
  }
  
  .header-phone {
    font-size: 14px;
    justify-self: center;
  }
  
  .logo {
    font-size: 18px;
  }
  
  .logo-image {
    height: 35px;
  }
}

/* Small Mobile (до 480px) */
@media (max-width: 480px) {
  .site-header {
    gap: 10px;
  }
  
  .header-phone {
    font-size: 13px;
  }
  
  .logo {
    font-size: 16px;
  }
  
  .logo-image {
    height: 30px;
  }
}

/* Very Small Mobile (до 360px) */
@media (max-width: 360px) {
  .site-header {
    gap: 8px;
  }
  
  .header-phone {
    font-size: 12px;
  }
  
  .logo {
    font-size: 14px;
  }
  
  .logo-image {
    height: 28px;
  }
}