:root {
    --landing-ink: #172033;
    --landing-muted: #637089;
    --landing-blue: #1a73e8;
    --landing-green: #0d9d76;
    --landing-border: #dfe7f1;
    --landing-surface: #ffffff;
    --landing-background: #eef4fa;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    color: var(--landing-ink);
    background:
        radial-gradient(circle at 15% 10%, rgba(26, 115, 232, 0.16), transparent 34%),
        linear-gradient(135deg, var(--landing-background), #f8fbff 60%, #e4f4ef);
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.landing-shell {
    min-height: calc(100vh - 68px);
    display: grid;
    place-items: center;
    padding: 48px 20px 28px;
}

.landing-card {
    width: min(100%, 720px);
    padding: clamp(32px, 7vw, 72px);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 28px;
    box-shadow: 0 24px 70px rgba(36, 58, 91, 0.16);
    text-align: center;
}

.landing-mark {
    width: 64px;
    height: 64px;
    display: grid;
    place-items: center;
    margin: 0 auto 28px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--landing-blue), var(--landing-green));
    color: white;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.landing-eyebrow {
    margin: 0 0 12px;
    color: var(--landing-green);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(2.4rem, 7vw, 4.7rem);
    letter-spacing: -0.06em;
    line-height: 0.98;
}

.landing-intro {
    max-width: 480px;
    margin: 24px auto 36px;
    color: var(--landing-muted);
    font-size: 1.05rem;
    line-height: 1.7;
}

.language-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    text-align: left;
}

.language-option {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 13px;
    min-height: 86px;
    padding: 16px;
    border: 1px solid var(--landing-border);
    border-radius: 16px;
    color: var(--landing-ink);
    text-decoration: none;
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.language-option:hover,
.language-option:focus-visible,
.language-option.is-recommended {
    border-color: var(--landing-blue);
    box-shadow: 0 10px 26px rgba(26, 115, 232, 0.14);
    transform: translateY(-2px);
}

.language-code {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: #edf5ff;
    color: var(--landing-blue);
    font-size: 0.78rem;
    font-weight: 800;
}

.language-option strong,
.language-option small {
    display: block;
}

.language-option small {
    margin-top: 4px;
    color: var(--landing-muted);
    font-size: 0.78rem;
}

.language-arrow {
    color: var(--landing-green);
    font-size: 1.4rem;
}

.language-hint {
    margin: 24px 0 0;
    color: var(--landing-muted);
    font-size: 0.82rem;
}

.landing-footer {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 0 20px 24px;
    color: var(--landing-muted);
    font-size: 0.82rem;
}

.landing-footer a {
    color: var(--landing-blue);
}

@media (max-width: 560px) {
    .landing-shell {
        min-height: auto;
        padding-top: 24px;
    }

    .landing-card {
        border-radius: 22px;
    }

    .language-options {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .language-option {
        transition: none;
    }
}