.theme-selector {
    position: relative;
    display: flex;
    align-items: center;
    margin-left: 8px;
}

.theme-selector__button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-width: 220px;
    min-height: 44px;
    padding: 9px 12px 9px 16px;
    border-radius: 999px;
    color: var(--text-main);
    background: linear-gradient(180deg, rgba(85, 182, 255, .16), rgba(85, 182, 255, .08)), var(--top-nav-bg);
    border: 1px solid rgba(85, 182, 255, .36);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08), 0 10px 24px rgba(0, 0, 0, .18);
    font: inherit;
    font-size: .86rem;
    font-weight: 800;
    cursor: pointer;
    transition: border-color .18s ease, box-shadow .18s ease, background .18s ease, transform .18s ease;
}

    .theme-selector__button:hover,
    .theme-selector__button--open {
        border-color: rgba(85, 199, 255, .70);
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, .10), 0 0 0 3px rgba(85, 182, 255, .14), 0 14px 32px rgba(0, 0, 0, .24);
    }

    .theme-selector__button:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 3px;
    }

.theme-selector__glow {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--accent);
    box-shadow: 0 0 14px rgba(85, 199, 255, .9);
}

.theme-selector__text {
    flex: 1;
    text-align: left;
    white-space: nowrap;
}

.theme-selector__indicator {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(85, 182, 255, .18), rgba(85, 182, 255, .06));
    border: 1px solid rgba(85, 182, 255, .24);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08);
    transition: background .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.theme-selector__button:hover .theme-selector__indicator,
.theme-selector__button--open .theme-selector__indicator {
    border-color: rgba(85, 199, 255, .52);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .10), 0 0 18px rgba(85, 199, 255, .18);
}

.theme-selector__indicator-ring {
    position: relative;
    width: 14px;
    height: 14px;
}

.theme-selector__indicator-line {
    position: absolute;
    top: 6px;
    width: 8px;
    height: 2px;
    border-radius: 999px;
    background: var(--primary-strong);
    box-shadow: 0 0 10px rgba(85, 199, 255, .70);
    transition: transform .18s ease, background .18s ease;
}

.theme-selector__indicator-line--left {
    left: 1px;
    transform: rotate(42deg);
}

.theme-selector__indicator-line--right {
    right: 1px;
    transform: rotate(-42deg);
}

.theme-selector__button--open .theme-selector__indicator-line--left {
    transform: rotate(-42deg);
}

.theme-selector__button--open .theme-selector__indicator-line--right {
    transform: rotate(42deg);
}

.theme-selector__menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    z-index: 1000;
    min-width: 220px;
    padding: 8px;
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(17, 36, 60, .98), rgba(7, 20, 38, .98));
    border: 1px solid rgba(85, 182, 255, .30);
    box-shadow: 0 24px 54px rgba(0, 0, 0, .42), inset 0 1px 0 rgba(255, 255, 255, .06);
    backdrop-filter: blur(14px);
}

.theme-selector__option {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 40px;
    padding: 10px 12px;
    border: 1px solid transparent;
    border-radius: 13px;
    color: var(--text-soft);
    background: transparent;
    font: inherit;
    font-size: .86rem;
    font-weight: 750;
    text-align: left;
    cursor: pointer;
    transition: color .16s ease, background .16s ease, border-color .16s ease, transform .16s ease;
}

    .theme-selector__option:hover,
    .theme-selector__option:focus-visible {
        color: var(--text-main);
        background: rgba(85, 182, 255, .12);
        border-color: rgba(85, 182, 255, .22);
        outline: none;
        transform: translateX(2px);
    }

.theme-selector__option--active {
    color: var(--menu-link-active-text);
    background: linear-gradient(135deg, rgba(85, 182, 255, .28), rgba(85, 199, 255, .14));
    border-color: rgba(85, 182, 255, .40);
}

.theme-selector__option-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: rgba(144, 165, 193, .70);
}

.theme-selector__option--active .theme-selector__option-dot {
    background: var(--accent);
    box-shadow: 0 0 12px rgba(85, 199, 255, .85);
}

@media (max-width: 980px) {
    .theme-selector {
        margin-left: 0;
    }

    .theme-selector__button,
    .theme-selector__menu {
        min-width: 200px;
    }
}