.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 100;
    background: rgba(10, 10, 16, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font: 700 18px/1 var(--font-sans);
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.header__logo-icon {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    background: var(--gradient-main);
    box-shadow: 0 0 16px rgba(124, 140, 255, 0.6);
}

.header__nav {
    display: flex;
    align-items: center;
    gap: 40px;
}

.header__list {
    display: flex;
    gap: 32px;
}

.header__link {
    position: relative;
    color: var(--text-secondary);
    font: 600 15px/1 var(--font-sans);
    padding: 8px 0;
    transition: color 0.3s ease;
}

.header__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-main);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.header__link:hover {
    color: var(--text-primary);
}

.header__link:hover::after {
    width: 100%;
}

/* Выпадающее меню */
.header__dropdown {
    position: relative;
}

.header__dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    transform: translateY(10px);
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px;
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.header__dropdown:hover .header__dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.header__dropdown-link {
    display: block;
    padding: 12px 16px;
    color: var(--text-secondary);
    font-size: 14px;
    border-radius: 6px;
    transition: all 0.2s;
}

.header__dropdown-link:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.header__cta {
    font: 600 14px/1 var(--font-sans);
    color: var(--bg-base);
    background: var(--gradient-main);
    padding: 12px 24px;
    border-radius: 999px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.header__cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(124, 140, 255, 0.35);
}

/* ===== Кнопка переключения темы ===== */
.theme-toggle {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(20deg) scale(1.05);
}

.theme-toggle:active {
    transform: rotate(0deg) scale(0.95);
}

.theme-toggle__icon {
    font-size: 18px;
    line-height: 1;
    transition: transform 0.3s ease;
}

/* Адаптация под светлую тему */
[data-theme="light"] .theme-toggle {
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .theme-toggle:hover {
    background: rgba(0, 0, 0, 0.1);
}

@media (max-width: 980px) {
    .header__nav {
        display: none;
    }

    /* Бургер добавим позже */
}