body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    overflow-x: hidden;
}

body.has-menu-open {
    overflow: hidden;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

.header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 20;
    height: 90px;
    display: flex;
    align-items: center;
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.header__left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.lang-toggle {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--color-accent);
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 500;
}

.lang-toggle__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 28px;
    min-width: 48px;
    border-radius: 20px;
    color: var(--color-accent);
    opacity: 0.5;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.lang-toggle__btn.is-active {
    background-color: #3DCFB6;
    color: #FFFFFF;
    opacity: 1;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav__link {
    position: relative;
    font-size: 24px;
    color: var(--color-text);
    font-family: var(--font-mono);
}

.nav__link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -4px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-accent);
    opacity: 0;
    transform: translateX(-50%) scale(0.5);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    pointer-events: none;
}

.nav__link:hover::after {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

/* ---------- Burger + mobile menu ---------- */
.burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 40px;
    height: 40px;
    padding: 0 6px;
    flex-shrink: 0;
}

.burger__bar {
    display: block;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background-color: var(--color-accent);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.burger.is-open .burger__bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.burger.is-open .burger__bar:nth-child(2) {
    opacity: 0;
}

.burger.is-open .burger__bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: calc(100% - 0.5rem);
    right: var(--container-padding);
    z-index: 30;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    width: min(220px, calc(100vw - var(--container-padding) * 2));
    padding: 1.5rem;
    border-radius: 20px;
    border: 1px solid var(--color-accent);
    background:
        linear-gradient(225deg, var(--color-accent-strong) 0%, transparent 75%),
        var(--color-bg-soft);
    box-shadow: 0 30px 70px -25px rgba(0, 0, 0, 0.75);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.mobile-menu.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mobile-menu__link {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

.mobile-menu__link:hover {
    color: var(--color-accent);
}

.mobile-menu__lang {
    margin-top: 0.25rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo__mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.logo__mark img {
    height: 48px;
    width: auto;
}

.logo__text {
    font-family: var(--font-name);
    font-size: 1.4rem;
    line-height: 1.1;
    font-weight: 700;
}

.section {
    min-height: 89svh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section__eyebrow {
    font-family: var(--font-name);
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 0.08em;
    color: var(--color-accent);
}

.section__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 500;
}

@media (max-width: 900px) {
    .header__left {
        display: none;
    }

    .burger,
    .mobile-menu {
        display: flex;
    }

    .section {
        min-height: 0;
        padding-block: clamp(3rem, 12vw, 5rem);
    }

    .section__eyebrow {
        font-size: 1.25rem;
    }
}

@media (max-width: 600px) {
    .header {
        height: 76px;
    }

    .logo__mark img {
        height: 36px;
    }

    .logo__text {
        font-size: 1.05rem;
    }

    .logo {
        gap: 0.5rem;
    }
}