.pwa-install-sheet {
    position: fixed;
    inset: 0;
    z-index: 900;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 16px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.pwa-install-sheet.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.pwa-install-sheet__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(20, 30, 28, 0.52);
}

.pwa-install-sheet__panel {
    position: relative;
    z-index: 1;
    width: min(420px, 100%);
    background: linear-gradient(180deg, #fff 0%, #f8f5f2 100%);
    border: 1px solid #e4dfd9;
    border-radius: 20px 20px 16px 16px;
    padding: 20px 20px 18px;
    box-shadow: 0 20px 48px rgba(26, 48, 42, 0.22);
    transform: translateY(16px);
    transition: transform 0.25s ease;
}

.pwa-install-sheet.is-open .pwa-install-sheet__panel {
    transform: translateY(0);
}

.pwa-install-sheet__close {
    position: absolute;
    top: 12px;
    left: 12px;
    width: 34px;
    height: 34px;
    border: 0;
    border-radius: 50%;
    background: #f0ebe6;
    color: #6b6560;
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
}

.pwa-install-sheet__hero {
    display: block;
    width: 100%;
    height: auto;
    max-height: 220px;
    object-fit: cover;
    border-radius: 14px;
    margin-bottom: 16px;
    border: 1px solid #e4dfd9;
}

.pwa-install-sheet__brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-top: 4px;
}

.pwa-install-sheet__icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: contain;
    flex-shrink: 0;
    background: #1a302a;
}

.pwa-install-sheet__title {
    margin: 0;
    font-family: var(--font-heading, Amiri, serif);
    font-size: 1.2rem;
    color: var(--color-primary, #1a302a);
}

.pwa-install-sheet__actions {
    display: grid;
}

.pwa-install-sheet__confirm {
    width: 100%;
    justify-content: center;
}

@media (min-width: 520px) {
    .pwa-install-sheet {
        align-items: center;
    }

    .pwa-install-sheet__panel {
        border-radius: 18px;
    }
}

.pwa-install-toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translate(-50%, 16px);
    z-index: 1200;
    max-width: min(92vw, 360px);
    padding: 12px 16px;
    border-radius: 12px;
    background: #1a302a;
    color: #fff;
    font-size: 0.92rem;
    text-align: center;
    box-shadow: 0 12px 32px rgba(26, 48, 42, 0.28);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.pwa-install-toast.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}