/* ============================================
   НАВИГАЦИЯ
   Extracted from main.css
   Rules: 64.5 approx
   ============================================ */

/* Header стили для фиксированной позиции */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height-mobile, 70px);
    background: var(--color-background, #fff);
    z-index: var(--z-header, 1000);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    display: flex;
    align-items: center;
}

/* Accessibility: keyboard users can skip repeated navigation */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 12px;
    z-index: var(--z-skip-link, 2001);
    padding: 10px 16px;
    border-radius: 999px;
    background: #111;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
}

.skip-link:focus {
    left: 16px;
}

@media (min-width: 768px) {
    .header {
        height: var(--header-height-desktop, 80px);
    }
}

.nav-container {
    width: 100%;
    max-width: var(--container-max);
    height: 100%;
    margin: 0 auto;
    padding: 0 20px; /* Унифицированный боковой padding */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

/* Hide nav-menu on mobile, show on desktop */
@media (max-width: 767px) {
    .nav-menu {
        display: none;
    }
}

.nav-link {
    font-size: 16px;
    font-weight: 400;
    color: var(--color-black);
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--color-accent);
}

.nav-link:hover::after {
    width: 100%;
}

/* ============================================
   DROPDOWN МЕНЮ (DESKTOP)
   ============================================ */
.nav-dropdown {
    position: relative;
}

.nav-dropdown > .nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
}

.dropdown-arrow {
    font-size: 10px;
    transition: transform var(--transition-fast);
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 200px;
    background: var(--color-white, #fff);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    padding: 12px 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
    z-index: var(--z-header, 1000);
    margin-top: 12px;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

/* Arrow pointer */
.nav-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: var(--color-white, #fff);
    border-left: 1px solid rgba(0, 0, 0, 0.06);
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    margin-top: 8px;
}

.nav-dropdown-link {
    display: block;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 400;
    color: var(--color-text, #1a1a1a);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-dropdown-link:hover {
    background: var(--color-bg-sand, #FAF6F1);
    color: var(--color-accent);
    padding-left: 28px;
}

/* Hide dropdown on mobile (use mobile menu instead) */
@media (max-width: 767px) {
    .nav-dropdown-menu {
        display: none;
    }
}

.mobile-menu-btn {
    display: none; /* Hidden by default on desktop */
    flex-direction: column;
    gap: 5px;
    padding: 10px;
    z-index: var(--z-header-control, 1001);
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
}

/* Show mobile menu button on mobile devices */
@media (max-width: 767px) {
    .mobile-menu-btn {
        display: flex;
    }
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-black, #000);
    transition: all var(--transition-base);
    transform-origin: center;
}

.mobile-menu-btn.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-btn.open span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.mobile-menu {
    position: absolute;
    top: 0;
    right: 0;
    width: min(320px, 85vw);
    height: 100%;
    background: var(--color-white, #fff);
    padding: 72px 24px 56px; /* Align content start under close button */
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-base) cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.12);
}

.mobile-menu-close {
    position: absolute;
    top: 15px; /* Match burger vertical level in header */
    right: 20px;
    font-size: 18px;
    padding: 0;
    font-weight: 300;
    color: var(--color-text-light, #4a4a4a);
    opacity: 0.7;
    transition: all var(--transition-fast);
    background: var(--color-bg-sand, #FDF8F3);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 50%;
    width: 40px;  /* Match .mobile-menu-btn */
    height: 40px; /* Match .mobile-menu-btn */
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.mobile-menu-close:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.05);
}

.mobile-menu-close:active {
    opacity: 1;
    background: rgba(0, 0, 0, 0.08);
    transform: scale(0.95);
}

/* ============================================
   МОБИЛЬНАЯ АДАПТАЦИЯ НАВИГАЦИИ
   ============================================ */

/* Основные пункты меню */
.mobile-nav-link {
    font-family: var(--font-primary);
    font-size: 18px;
    font-weight: 400;
    color: var(--color-text, #1a1a1a);
    display: flex;
    align-items: center;
    padding: 18px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
    text-align: left;
    width: 100%;
    letter-spacing: 0.01em;
    position: relative;
    line-height: 1.3;
    min-height: 56px;
}

.mobile-nav-link:active {
    color: var(--color-accent);
}

.mobile-nav-link.active {
    color: var(--color-accent, #FDA700);
    font-weight: 500;
}

/* Подменю - визуальная иерархия */
.mobile-nav-submenu {
    background: var(--color-bg-sand, #FDF8F3);
    margin: 0 -24px;
    padding: 8px 24px 8px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.mobile-nav-submenu .mobile-nav-link {
    padding: 14px 0 14px 48px;
    font-size: 16px;
    font-weight: 400;
    color: var(--color-text-light, #4a4a4a);
    min-height: 48px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
}

.mobile-nav-submenu .mobile-nav-link:last-child {
    border-bottom: none;
}

/* Декоративная линия слева для подменю */
.mobile-nav-submenu .mobile-nav-link::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 1px;
    background: var(--color-accent, #FDA700);
    opacity: 0.4;
}

.mobile-nav-submenu .mobile-nav-link:active {
    color: var(--color-accent);
}

.mobile-nav-submenu .mobile-nav-link:active::before {
    opacity: 1;
}