/* ---------------------------------------------------------------------------
   AIO Video - Mobile Apps: the site as an app (tab bar, install prompt, QR sign-in)
   Author: MD OMAR FARUK | www.faruk.bd | Copyright (c) 2026
   --------------------------------------------------------------------------- */

/* ----------------------------------------------------- inside the app */

html.is-app body { padding-bottom: calc(64px + env(safe-area-inset-bottom, 0px)); }
html.is-app .sfoot, html.is-app .yt-guide-foot, html.is-app .side-credit { display: none !important; }
html.is-app.hide-header .topbar, html.is-app.hide-header .yt-top { display: none !important; }
html.is-app.hide-header .page { padding-top: 12px; }

.app-tabbar {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 900; display: flex; justify-content: space-around; align-items: stretch;
    height: calc(60px + env(safe-area-inset-bottom, 0px)); padding-bottom: env(safe-area-inset-bottom, 0px);
    background: var(--card, #161b25); border-top: 1px solid var(--line, #262d3a); box-shadow: 0 -6px 24px -14px rgba(0, 0, 0, .5);
}
.app-tabbar a {
    flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
    color: var(--muted, #8b96ab); font: 500 10.5px/1 system-ui, sans-serif; text-decoration: none; padding: 6px 2px; min-width: 0;
}
.app-tabbar a svg { width: 24px; height: 24px; fill: currentColor; }
.app-tabbar a.on { color: var(--app-theme, var(--brand, #2f6fed)); }
.app-tabbar a.is-create svg { width: 30px; height: 30px; padding: 3px; border-radius: 10px; background: var(--app-theme, var(--brand, #2f6fed)); color: #fff; }
.app-tabbar a span { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
html[data-mode="light"] .app-tabbar { background: #fff; border-top-color: #e5e9f0; }
.theme-youtube .app-tabbar { background: var(--yt-bg, #0f0f0f); border-top-color: var(--yt-line, #303030); }

/* ---------------------------------------------------- install prompt */

.app-install {
    position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 950; display: flex; align-items: center; gap: 12px;
    padding: 12px 14px; border-radius: 16px; background: var(--card, #161b25); color: var(--ink, #e7ecf3);
    border: 1px solid var(--line, #262d3a); box-shadow: 0 18px 50px -18px rgba(0, 0, 0, .6);
    transform: translateY(20px); opacity: 0; transition: transform .25s, opacity .25s;
}
.app-install.is-in { transform: none; opacity: 1; }
.app-install img { width: 44px; height: 44px; border-radius: 12px; flex: none; }
.app-install .t { flex: 1; min-width: 0; font-size: 13px; line-height: 1.4; }
.app-install .t b { display: block; font-size: 14px; }
.app-install .t span { color: var(--muted, #8b96ab); }
.app-install button { font: 600 13px/1 inherit; border: 0; border-radius: 99px; padding: 10px 14px; cursor: pointer; background: var(--app-theme, var(--brand, #2f6fed)); color: #fff; }
.app-install .app-install-x { background: none; color: var(--muted, #8b96ab); font-size: 20px; padding: 6px 8px; }
@media (min-width: 700px) { .app-install { left: auto; right: 16px; width: 380px; } }

/* --------------------------------------------------- "Get the app" page */

.app-get { max-width: 880px; margin: 0 auto; }
.app-get-hero { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 20px; align-items: center; margin-bottom: 24px; }
.app-get-hero img { width: 96px; height: 96px; border-radius: 24px; box-shadow: 0 12px 30px -12px rgba(0, 0, 0, .5); }
.app-get-hero h1 { margin: 0 0 6px; font-size: 24px; }
.app-get-hero p { margin: 0; color: var(--muted); }
.app-get-ways { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.app-way { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; display: flex; flex-direction: column; gap: 10px; }
.app-way h3 { margin: 0; font-size: 15px; display: flex; align-items: center; gap: 8px; }
.app-way h3 svg { width: 22px; height: 22px; fill: currentColor; color: var(--brand); }
.app-way p { margin: 0; font-size: 13.5px; color: var(--muted); line-height: 1.55; flex: 1; }
.app-way .btn { align-self: flex-start; }
.app-way ol { margin: 0; padding-left: 18px; font-size: 13.5px; color: var(--muted); line-height: 1.6; }
.app-qr { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin-top: 22px; padding: 16px; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
.app-qr canvas, .app-qr img, .app-qr svg { width: 120px; height: 120px; border-radius: 10px; background: #fff; padding: 6px; display: block; }
.app-qr p { margin: 0; font-size: 13.5px; color: var(--muted); }

/* ---------------------------------------------- QR sign-in, both sides */

.qr-login { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); }
.qr-login-head b { display: block; font-size: 14px; }
.qr-login-head span { font-size: 12.5px; color: var(--muted); }
.qr-login-body { display: flex; gap: 16px; align-items: center; margin-top: 12px; flex-wrap: wrap; }
.qr-login-box { width: 150px; height: 150px; border-radius: 12px; background: #fff; padding: 8px; display: grid; place-items: center; color: #555; font-size: 12px; flex: none; }
.qr-login-box canvas, .qr-login-box img, .qr-login-box svg { width: 100%; height: 100%; display: block; }
.qr-login-side { flex: 1; min-width: 180px; font-size: 13px; }
.qr-login-code b { font-family: ui-monospace, monospace; font-size: 16px; letter-spacing: 2px; color: var(--brand); }
.qr-login-say { margin-top: 6px; color: var(--muted); font-size: 12.5px; }
.qr-login.is-done .qr-login-box { opacity: .35; }
.qr-scan { max-width: 460px; margin: 0 auto; }
.qr-scan-cam { position: relative; border-radius: 16px; overflow: hidden; background: #000; aspect-ratio: 1; }
.qr-scan-cam video { width: 100%; height: 100%; object-fit: cover; }
.qr-scan-cam .frame { position: absolute; inset: 15%; border: 3px solid rgba(255, 255, 255, .85); border-radius: 18px; box-shadow: 0 0 0 999px rgba(0, 0, 0, .35); }
.qr-scan-ask { text-align: center; }
.qr-scan-ask .who { margin: 12px 0; padding: 12px; border-radius: 12px; background: var(--bg-soft, rgba(127, 127, 127, .1)); font-size: 13.5px; }
.qr-scan-ask .who b { display: block; font-size: 15px; }
.qr-scan-manual { display: flex; gap: 8px; margin-top: 14px; }
.qr-scan-manual input { flex: 1; text-transform: uppercase; letter-spacing: 2px; font-family: ui-monospace, monospace; }

/* --------------------------------------------- the builder's phone */

.app-builder { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 22px; align-items: start; }
.app-phone { position: sticky; top: 84px; }
.app-phone-frame {
    width: 340px; height: 690px; margin: 0 auto; border-radius: 44px; background: #0b0f17; padding: 14px; box-shadow: 0 30px 70px -30px rgba(0, 0, 0, .7), inset 0 0 0 2px #2b3445; position: relative;
}
.app-phone-frame::before { content: ""; position: absolute; top: 14px; left: 50%; width: 110px; height: 26px; transform: translateX(-50%); background: #0b0f17; border-radius: 0 0 16px 16px; z-index: 2; }
.app-phone-screen { width: 100%; height: 100%; border-radius: 32px; overflow: hidden; background: #000; }
.app-phone-screen iframe { width: 100%; height: 100%; border: 0; display: block; background: #fff; }
.app-phone-note { text-align: center; font-size: 12.5px; color: var(--muted); margin-top: 10px; }
.app-tabs-editor { display: grid; gap: 8px; }
.app-tab-row { display: grid; grid-template-columns: 28px minmax(0, 1fr) 140px minmax(0, 1fr) 30px; gap: 8px; align-items: center; }
.app-tab-row input, .app-tab-row select { padding: 7px 9px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); font: inherit; font-size: 13px; width: 100%; }
.app-tab-row .n { font-size: 12px; color: var(--muted); text-align: center; }
.app-tab-row .x { border: 0; background: none; color: var(--muted); cursor: pointer; font-size: 18px; }
@media (max-width: 1100px) {
    .app-builder { grid-template-columns: 1fr; }
    .app-phone { position: static; }
}