/* Discoverable install entry: native prompt where available, platform guide elsewhere. */
.pwa-install-area {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr) auto;
    align-items: center;
    gap: 13px;
    max-width: 680px;
    margin-top: 24px;
    padding: 13px 14px;
    color: var(--text-secondary);
    background: linear-gradient(120deg, var(--accent-soft), rgba(20,27,38,.78));
    border: 1px solid var(--accent-border);
    border-radius: 14px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(12px);
}
.pwa-install-area[hidden], .pwa-install-area [hidden] { display: none !important; }
.pwa-install-icon { display: block; width: 48px; height: 48px; border-radius: 12px; box-shadow: 0 5px 18px rgba(0,0,0,.25); }
.pwa-install-copy { display: grid; min-width: 0; gap: 2px; }
.pwa-install-copy strong { color: var(--text); font-size: .9rem; }
.pwa-install-copy > span { font-size: .75rem; line-height: 1.45; }
.pwa-install-actions { display: flex; align-items: center; gap: 8px; }
.pwa-install-button,
.pwa-guide-button,
.pwa-guide-done {
    min-height: 42px;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 9px 14px;
    color: var(--text);
    background: var(--card-bg);
    font: inherit;
    font-size: .8rem;
    font-weight: 700;
    cursor: pointer;
}
.pwa-install-button { display: inline-flex; align-items: center; justify-content: center; gap: 7px; white-space: nowrap; }
.pwa-install-button > span:first-child { font-size: 1rem; line-height: 1; }
.pwa-install-area[data-install-ready="true"] .pwa-install-button,
.pwa-install-guide footer .pwa-install-button {
    color: #17130f;
    background: var(--hero-button-bg);
    border-color: transparent;
}
.pwa-install-button:hover,
.pwa-guide-button:hover,
.pwa-guide-done:hover { border-color: var(--accent); transform: translateY(-1px); }
.pwa-install-button:disabled { opacity: .6; cursor: wait; transform: none; }
.pwa-guide-button { color: var(--accent); background: transparent; border-color: var(--accent-border); }
#pwaInstallStatus { margin: 4px 0 0; color: var(--accent); font-size: .72rem; line-height: 1.45; }

.pwa-install-guide {
    position: fixed;
    inset: 0;
    margin: auto;
    width: min(520px, calc(100vw - 28px));
    max-height: min(720px, calc(100dvh - 28px));
    padding: 0;
    color: var(--text);
    background: var(--card-bg);
    border: 1px solid var(--accent-border);
    border-radius: 18px;
    box-shadow: 0 28px 90px rgba(0,0,0,.55);
    overflow: hidden;
}
.pwa-install-guide::backdrop { background: var(--overlay); backdrop-filter: blur(4px); }
.pwa-install-guide[open] { animation: pwa-guide-in .18s ease-out; }
.pwa-install-guide header,
.pwa-install-guide footer { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 18px 20px; }
.pwa-install-guide header { border-bottom: 1px solid var(--border); }
.pwa-install-guide header span { display: block; color: var(--accent); font-size: .68rem; font-weight: 800; letter-spacing: .13em; }
.pwa-install-guide h2 { margin: 3px 0 0; font-size: 1.22rem; }
.pwa-guide-close { width: 42px; height: 42px; flex: 0 0 42px; color: var(--text-secondary); background: transparent; border: 0; border-radius: 9px; font-size: 1.8rem; line-height: 1; cursor: pointer; }
.pwa-guide-close:hover { color: var(--text); background: var(--surface-muted); }
.pwa-guide-body { padding: 20px; overflow-y: auto; }
.pwa-platform-badge { display: inline-flex; padding: 5px 9px; color: var(--accent); background: var(--accent-soft); border: 1px solid var(--accent-border); border-radius: 999px; font-size: .72rem; font-weight: 700; }
#pwaGuideIntro { margin: 14px 0; color: var(--text-secondary); font-size: .88rem; line-height: 1.7; }
#pwaGuideSteps { list-style: none; display: grid; gap: 10px; margin: 0; padding: 0; counter-reset: pwa-step; }
#pwaGuideSteps li { display: grid; grid-template-columns: 32px minmax(0,1fr); align-items: center; gap: 11px; padding: 11px 12px; background: var(--surface-muted); border: 1px solid var(--border); border-radius: 11px; font-size: .84rem; line-height: 1.55; counter-increment: pwa-step; }
#pwaGuideSteps li::before { content: counter(pwa-step); display: grid; place-items: center; width: 30px; height: 30px; color: #17130f; background: var(--accent); border-radius: 50%; font-size: .72rem; font-weight: 900; }
.pwa-guide-note { margin: 14px 0 0; padding: 11px 12px; color: var(--text-secondary); background: var(--accent-soft); border-left: 3px solid var(--accent); border-radius: 7px; font-size: .78rem; line-height: 1.65; }
.pwa-install-guide footer { justify-content: flex-end; border-top: 1px solid var(--border); }
@keyframes pwa-guide-in { from { opacity: 0; transform: translateY(8px) scale(.985); } }

@media (max-width: 600px) {
    .pwa-install-area { grid-template-columns: 42px minmax(0,1fr); padding: 12px; }
    .pwa-install-icon { width: 42px; height: 42px; border-radius: 10px; }
    .pwa-install-actions { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr; }
    .pwa-install-actions:has(.pwa-guide-button:not([hidden])) { grid-template-columns: minmax(0,1fr) auto; }
    .pwa-install-button, .pwa-guide-button { width: 100%; }
    .pwa-install-guide header, .pwa-install-guide footer { padding: 15px 16px; }
    .pwa-guide-body { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) {
    .pwa-install-guide[open] { animation: none; }
    .pwa-install-button:hover, .pwa-guide-button:hover, .pwa-guide-done:hover { transform: none; }
}