/* ============================================================
   install-nudge.css — Soft PWA install prompt (glass toast)
   Sits above .vdb-player (z=50), below expanded player (z=60)
   ============================================================ */

.vdb-install-nudge {
    position: fixed;
    left: 50%;
    bottom: calc(96px + env(safe-area-inset-bottom));
    transform: translate(-50%, 24px);
    width: min(440px, calc(100vw - 24px));
    z-index: 55;
    padding: 16px 18px;
    border-radius: var(--r-lg);
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid rgba(255, 255, 255, 0.85);
    box-shadow:
        0 24px 56px -16px rgba(0, 0, 0, 0.38),
        0 8px 22px -10px rgba(0, 0, 0, 0.24),
        inset 0 1px 0 rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(28px) saturate(180%);
    -webkit-backdrop-filter: blur(28px) saturate(180%);
    color: var(--ink);
    opacity: 0;
    pointer-events: none;
    transition:
        opacity .35s var(--ease-out),
        transform .35s var(--ease-out);
}

.vdb-install-nudge.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
    pointer-events: auto;
}

.vdb-install-nudge-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.vdb-install-nudge-icon {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: #000;
    color: #fff;
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
.vdb-install-nudge-icon svg { width: 20px; height: 20px; }

.vdb-install-nudge-body { flex: 1; min-width: 0; }

.vdb-install-nudge-title {
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    line-height: 1.2;
    margin-bottom: 4px;
}

.vdb-install-nudge-text {
    font-size: 13px;
    line-height: 1.4;
    color: var(--ink-soft);
}

.vdb-install-nudge-ios-steps {
    margin-top: 8px;
    font-size: 12.5px;
    line-height: 1.5;
    color: var(--ink-soft);
}
.vdb-install-nudge-ios-steps svg {
    display: inline-block;
    vertical-align: -3px;
    width: 14px;
    height: 14px;
    margin: 0 2px;
}

.vdb-install-nudge-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 14px;
}

.vdb-install-nudge-btn {
    appearance: none;
    font: inherit;
    cursor: pointer;
    padding: 9px 16px;
    border-radius: var(--r-pill);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: 1px solid transparent;
    transition: transform var(--t-fast) var(--ease-out),
                background var(--t-fast) var(--ease-out);
}
.vdb-install-nudge-btn:hover { transform: translateY(-1px); }
.vdb-install-nudge-btn:active { transform: translateY(0); }

.vdb-install-nudge-btn--ghost {
    background: rgba(0, 0, 0, 0.04);
    color: var(--ink-soft);
    border-color: rgba(0, 0, 0, 0.08);
}
.vdb-install-nudge-btn--ghost:hover {
    background: rgba(0, 0, 0, 0.08);
    color: var(--ink);
}

.vdb-install-nudge-btn--primary {
    background: linear-gradient(180deg, rgba(20,20,20,0.96) 0%, #000 100%);
    color: #fff;
    border-color: rgba(0, 0, 0, 0.6);
    box-shadow:
        0 10px 24px -10px rgba(0, 0, 0, 0.55),
        inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

@media (max-width: 480px) {
    .vdb-install-nudge {
        left: 12px; right: 12px;
        width: auto;
        transform: translateY(24px);
        padding: 14px 14px;
    }
    .vdb-install-nudge.is-visible { transform: translateY(0); }
}

@media (prefers-color-scheme: dark) {
    .vdb-install-nudge {
        background: rgba(20, 20, 22, 0.78);
        border-color: rgba(255, 255, 255, 0.12);
        color: #fff;
    }
    .vdb-install-nudge-text,
    .vdb-install-nudge-ios-steps { color: rgba(255, 255, 255, 0.72); }
    .vdb-install-nudge-btn--ghost {
        background: rgba(255, 255, 255, 0.06);
        color: rgba(255, 255, 255, 0.72);
        border-color: rgba(255, 255, 255, 0.1);
    }
    .vdb-install-nudge-btn--ghost:hover {
        background: rgba(255, 255, 255, 0.12);
        color: #fff;
    }
}

@media (prefers-reduced-motion: reduce) {
    .vdb-install-nudge {
        transform: translate(-50%, 0);
        transition: opacity .2s linear;
    }
    @media (max-width: 480px) {
        .vdb-install-nudge { transform: none; }
    }
}