/* ============================================================
 * [Joker pivot pro 2026-05-15] lang_welcome_popup.css
 * Modal di benvenuto: rilevamento GeoIP + scelta lingua manuale.
 * Triggera SOLO alla prima visita (localStorage 'zi-lang-welcomed').
 * Token-based dual-theme (light=Trust Blue / dark=Gold).
 * ============================================================ */

.zi-langw-overlay {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: rgba(8, 12, 24, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.28s ease-out;
}

.zi-langw-overlay.is-visible {
    opacity: 1;
    pointer-events: auto;
}

.zi-langw-card {
    background: var(--zi-bg-panel);
    color: var(--zi-text);
    border: 1px solid var(--zi-border-soft);
    border-radius: var(--zi-radius-card, 20px);
    padding: 36px 32px 28px;
    max-width: 520px;
    width: 100%;
    box-shadow: 0 24px 72px rgba(0, 0, 0, 0.35), var(--zi-shadow-elevated, 0 6px 18px rgba(0,0,0,0.2));
    text-align: center;
    transform: translateY(12px) scale(0.98);
    transition: transform 0.32s cubic-bezier(0.2, 0.8, 0.2, 1);
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.zi-langw-overlay.is-visible .zi-langw-card {
    transform: translateY(0) scale(1);
}

.zi-langw-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: var(--zi-brand-tint-low);
    border: 1px solid var(--zi-brand-tint-mid);
    color: var(--zi-brand-on-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
}

.zi-langw-title {
    font-size: 20px;
    font-weight: 800;
    color: var(--zi-text-main);
    margin: 0 0 6px;
    letter-spacing: -0.01em;
    -webkit-text-fill-color: initial;
}

.zi-langw-subtitle {
    font-size: 14px;
    color: var(--zi-text-soft, var(--zi-muted));
    margin: 0 0 22px;
    line-height: 1.5;
}

.zi-langw-detected {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--zi-bg-soft);
    border: 1px solid var(--zi-border-soft);
    border-radius: var(--zi-radius-pill, 999px);
    font-size: 12px;
    color: var(--zi-text-mute, var(--zi-muted));
    margin: 0 0 20px;
    font-weight: 600;
}

.zi-langw-detected .zi-langw-flag {
    font-size: 16px;
}

.zi-langw-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin: 0 0 22px;
}

@media (max-width: 480px) {
    .zi-langw-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .zi-langw-card {
        padding: 28px 20px 22px;
    }
}

.zi-langw-btn {
    appearance: none;
    background: var(--zi-bg-soft);
    border: 1px solid var(--zi-border-soft);
    border-radius: var(--zi-radius-card, 14px);
    padding: 14px 8px 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    transition: transform 0.18s ease-out, border-color 0.18s, background 0.18s, box-shadow 0.18s;
    font-family: inherit;
}

.zi-langw-btn:hover {
    transform: translateY(-2px);
    border-color: var(--zi-brand-tint-hi);
    background: var(--zi-brand-tint-low);
    box-shadow: var(--zi-shadow-hover);
}

.zi-langw-btn.is-current {
    border-color: var(--zi-brand);
    background: var(--zi-brand-tint-low);
    box-shadow: 0 0 0 2px var(--zi-brand-tint-mid);
}

.zi-langw-btn .zi-langw-flag {
    font-size: 24px;
    line-height: 1;
}

.zi-langw-btn .zi-langw-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--zi-text-main);
    text-transform: uppercase;
    letter-spacing: 1px;
    -webkit-text-fill-color: initial;
}

.zi-langw-btn:focus-visible {
    outline: 3px solid var(--zi-focus-ring);
    outline-offset: 2px;
}

.zi-langw-continue {
    appearance: none;
    background: linear-gradient(135deg, var(--zi-brand), var(--zi-brand-strong));
    color: var(--zi-on-brand);
    border: 1px solid var(--zi-brand);
    border-radius: var(--zi-radius-pill, 999px);
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.18s, box-shadow 0.18s, background 0.25s;
    width: 100%;
    max-width: 320px;
    font-family: inherit;
    -webkit-text-fill-color: inherit;
}

.zi-langw-continue:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px var(--zi-brand-tint-muted, rgba(0,0,0,0.2));
}

.zi-langw-continue:focus-visible {
    outline: 3px solid var(--zi-focus-ring);
    outline-offset: 3px;
}

.zi-langw-foot {
    margin: 14px 0 0;
    font-size: 11px;
    color: var(--zi-text-mute, var(--zi-muted));
    opacity: 0.75;
}

/* Prefers-reduced-motion fallback */
@media (prefers-reduced-motion: reduce) {
    .zi-langw-overlay,
    .zi-langw-card,
    .zi-langw-btn,
    .zi-langw-continue {
        transition: none;
    }
}