/* ==============================================================
   THEME SWITCHER BUTTON
   ============================================================== */
.theme-switcher {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    min-width: 2.5rem;
    background: var(--card-bg);
    border: 1px solid var(--card-stroke);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
    padding: 0;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

.theme-switcher:hover {
    border-color: var(--accent-color);
    background: var(--card-hover-secondary);
}

.theme-icon {
    width: 1.125rem;
    height: 1.125rem;
    display: block;
    flex-shrink: 0;
}

/* Dark mode: показываем иконку солнца (переключить на светлую) */
.theme-icon-dark  { display: block; }
.theme-icon-light { display: none;  }

/* Light mode: показываем иконку луны (переключить на тёмную) */
[data-theme="light"] .theme-icon-dark  { display: none;  }
[data-theme="light"] .theme-icon-light { display: block; }

/* Мобильный — чуть меньше */
@media (max-width: 64rem) {
    .theme-switcher {
        width: 2.75rem;
        height: 2.75rem;
        min-width: 2.75rem;
    }
}

/* ==============================================================
   LIGHT THEME — токены через [data-theme="light"]
   Подключи этот файл ПОСЛЕ styles.css на обеих страницах.
   Заменяет styles-light.css — больше не нужен отдельный HTML файл.
   ============================================================== */

[data-theme="light"] {
    /* Background */
    --bg-color: #f8fafc;
    --nav-bg: #f0f0f8;

    /* Text */
    --heading-color: #1a1a2e;
    --body-1: #1e1e30;
    --body-2: #42426a;
    --body-3: #6b7080;
    --body-4: #8890a0;
    --text-hover: #6366f1;

    /* Accent — сохранены */
    --accent-color: #6366f1;
    --accent-primary: #6366f1;
    --accent-primary-hover: #4f46e5;
    --tag-color: rgba(245, 158, 11, 0.18);
    --accent-gold: #d48f10;

    /* Button */
    --btn-color: #6366f1;
    --btn-text: #ffffff;

    /* Icons */
    --icon-color: #1e1e30;

    /* Card */
    --card-bg: #fafaff;
    --card-stroke: #e2e2ee;
    --card-shadow: rgba(0, 0, 0, 0.08);
    --card-bg-secondary: #ffffff;
    --card-stroke-secondary: #dcdcec;
    --card-text-primary: #1a1a2e;
    --card-text-secondary: #2a2a42;
    --card-hover-secondary: rgba(99, 102, 241, 0.08);
    --card-bg-tertiary: #f0f0f8;
    --card-stroke-tertiary: #ccccda;
    --card-text-tertiary: #4a4a6a;
    --card-hover-tertiary: rgba(99, 102, 241, 0.06);

    /* Feedback */
    --correct-bg: #e1f2ec;
    --correct-border: #0d9488;
    --correct-text: #0d9488;
    --danger: #f04438;
    --danger-bg: #fef3f2;
    --danger-border: #f04438;
    --danger-text: #f04438;
    --neutral-bg: rgba(100, 116, 139, 0.1);
    --neutral-border: #94a3b8;
    --neutral-text: #475569;
    --note: rgba(99, 102, 241, 0.1);

    /* Nav */
    --nav-text: #1e1e30;
    --nav-text-hover: #6366f1;
    --nav-text-active: #4f46e5;
}

/* Nav — изначально blur на светлой теме */
[data-theme="light"] nav {
    background: rgba(240, 240, 248, 0.72);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
}

[data-theme="light"] nav.scrolled {
    background: rgba(235, 235, 245, 0.82);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 0.5rem rgba(0, 0, 0, 0.07), 0 0.5rem 1.5rem rgba(0, 0, 0, 0.09);
}

/* Mobile menu — непрозрачный */
[data-theme="light"] .mobile-menu {
    background: #f0f0f8;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

/* Burger lines */
[data-theme="light"] .burger span {
    background: var(--body-1);
}

/* nav-username */
[data-theme="light"] .nav-username {
    color: var(--body-1);
}

/* Paywall */
[data-theme="light"] .paywall-overlay {
    background: rgba(100, 100, 130, 0.45);
}

[data-theme="light"] .paywall-box {
    background: var(--card-bg);
    border-color: var(--card-stroke);
}

[data-theme="light"] .paywall-box h2 {
    color: var(--heading-color);
}

[data-theme="light"] .paywall-box p {
    color: var(--body-2);
}

/* Footer large text */
[data-theme="light"] .footer-large-text,
[data-theme="light"] .footer-large-text .word,
[data-theme="light"] .footer-large-text .word.primary {
    color: rgba(0, 0, 0, 0.06);
}

/* section-title gradient */
[data-theme="light"] .section-title::after {
    background: linear-gradient(to right, var(--accent-color) 5%, rgba(0, 0, 0, 0.08) 5%);
}

/* Carousel dot */
[data-theme="light"] .carousel-dot {
    background-color: rgba(0, 0, 0, 0.2);
}

/* mob-close hover */
[data-theme="light"] .mob-close:hover {
    background: rgba(0, 0, 0, 0.06);
}

/* paywall-close */
[data-theme="light"] .paywall-close {
    color: var(--body-2);
}