/* AJA OS: the phone shell — stage/device/statusbar/dock, home screen,
   Spotlight, Control Center, toasts, view transitions, wallpapers.
   Tokens live in styles.css; this file is the .os-* shell only. */

:root {
    --os-statusbar-h: 44px;
    --os-dock-h: 76px;
    --os-safe-top: env(safe-area-inset-top, 0px);
    --os-safe-bottom: env(safe-area-inset-bottom, 0px);
    --os-frame-w: 430px;
    --os-frame-h: min(880px, calc(100svh - 64px));
    --os-frame-radius: 44px;
    --os-wide-w: 1100px;
    --os-icon: 64px;
    --os-icon-radius: 22.37%;
}

/* wallpapers: pure CSS/SVG, no images, painted behind body (phone) and the
   stage + screen (desktop) */
html[data-theme="light"] {
    --os-wallpaper:
        radial-gradient(900px circle at 12% 0%, rgba(37, 99, 235, 0.14), transparent 55%),
        radial-gradient(760px circle at 100% 30%, rgba(225, 29, 72, 0.10), transparent 55%),
        radial-gradient(900px circle at 30% 100%, rgba(8, 145, 178, 0.10), transparent 60%),
        linear-gradient(180deg, #EEF2FF 0%, #F7F8FC 55%, #FDF1F4 100%);
}
html[data-theme="dusk"] {
    --os-wallpaper:
        radial-gradient(820px circle at 15% -5%, rgba(251, 191, 36, 0.28), transparent 55%),
        radial-gradient(760px circle at 100% 20%, rgba(244, 114, 182, 0.20), transparent 55%),
        radial-gradient(900px circle at 40% 110%, rgba(194, 65, 12, 0.30), transparent 60%),
        linear-gradient(180deg, #241812 0%, #171210 60%, #140D0B 100%);
}
html[data-theme="night"] {
    --os-wallpaper:
        radial-gradient(820px circle at 10% -10%, rgba(139, 92, 246, 0.30), transparent 55%),
        radial-gradient(760px circle at 100% 15%, rgba(34, 211, 238, 0.18), transparent 55%),
        radial-gradient(900px circle at 50% 115%, rgba(255, 106, 194, 0.16), transparent 60%),
        linear-gradient(180deg, #11101F 0%, #0B0D14 55%, #08090F 100%);
}
html[data-theme="void"] {
    --os-wallpaper:
        radial-gradient(2px 2px at 8% 12%, rgba(255, 255, 255, 0.9), transparent),
        radial-gradient(1.5px 1.5px at 22% 68%, rgba(255, 255, 255, 0.7), transparent),
        radial-gradient(2px 2px at 40% 30%, rgba(255, 255, 255, 0.8), transparent),
        radial-gradient(1.5px 1.5px at 62% 82%, rgba(255, 255, 255, 0.6), transparent),
        radial-gradient(2px 2px at 78% 18%, rgba(255, 255, 255, 0.85), transparent),
        radial-gradient(1.5px 1.5px at 90% 55%, rgba(255, 255, 255, 0.6), transparent),
        radial-gradient(700px circle at 20% 0%, rgba(157, 78, 255, 0.14), transparent 60%),
        radial-gradient(700px circle at 100% 100%, rgba(0, 229, 255, 0.10), transparent 60%),
        linear-gradient(#000000, #000000);
}
html[data-theme="forest"] {
    --os-wallpaper:
        radial-gradient(820px circle at 10% -5%, rgba(163, 230, 53, 0.20), transparent 55%),
        radial-gradient(760px circle at 100% 20%, rgba(45, 212, 191, 0.16), transparent 55%),
        radial-gradient(900px circle at 45% 115%, rgba(4, 120, 87, 0.35), transparent 60%),
        linear-gradient(180deg, #0F1B12 0%, #0B130E 55%, #08100B 100%);
}
html[data-theme="ocean"] {
    --os-wallpaper:
        radial-gradient(820px circle at 12% -5%, rgba(34, 211, 238, 0.22), transparent 55%),
        radial-gradient(760px circle at 100% 20%, rgba(129, 140, 248, 0.18), transparent 55%),
        radial-gradient(900px circle at 45% 115%, rgba(3, 105, 161, 0.35), transparent 60%),
        linear-gradient(180deg, #0A1826 0%, #07121D 55%, #050E17 100%);
}
html[data-theme="candy"] {
    --os-wallpaper:
        radial-gradient(820px circle at 12% -5%, rgba(236, 72, 153, 0.20), transparent 55%),
        radial-gradient(760px circle at 100% 15%, rgba(168, 85, 247, 0.14), transparent 55%),
        radial-gradient(900px circle at 45% 115%, rgba(245, 158, 11, 0.14), transparent 60%),
        linear-gradient(180deg, #FDF2F8 0%, #FDF2F8 55%, #FCE7F3 100%);
}

/* ==========================================================================
   Stage / device
   ========================================================================== */

body.os {
    background: var(--os-wallpaper), var(--bg-0);
}

.os-stage {
    position: relative;
    min-height: 100svh;
}

.os-stage-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    display: none;
}

.os-device {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: 100svh;
    background: transparent;
    isolation: isolate;
}

.os-statusbar {
    position: sticky;
    top: 0;
    z-index: 30;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: var(--os-statusbar-h);
    padding: 0 16px;
    padding-top: var(--os-safe-top);
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
}

.os-brand {
    justify-self: start;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: -0.01em;
    color: var(--text-1);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    min-height: 44px;
}

.os-clock {
    justify-self: center;
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--text-2);
    min-width: 5ch;
    text-align: center;
}

.os-status-actions {
    justify-self: end;
    display: flex;
    align-items: center;
    gap: 4px;
}

.os-btn-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-2);
    font-size: 1rem;
    cursor: pointer;
    transition: color var(--dur-2) ease, background-color var(--dur-2) ease, transform var(--dur-1) ease;
}

.os-btn-icon:hover { color: var(--text-1); background: var(--glass-bg); }
.os-btn-icon:active { transform: scale(0.9); }

.os-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding-bottom: calc(var(--os-dock-h) + var(--os-safe-bottom) + 16px);
}

@media (min-width: 900px) {
    body:not([data-layout="wide"]) .os-screen { padding-bottom: 0; }
}

.os-screen > main {
    flex: 1;
    outline: none;
}

.os-dock {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 30;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    height: var(--os-dock-h);
    padding-bottom: var(--os-safe-bottom);
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border-top: 1px solid var(--glass-border);
}

.os-dock a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    min-height: 44px;
    padding: 8px 4px 10px;
    color: var(--text-3);
    font-size: 0.68rem;
    font-weight: 600;
    position: relative;
}

.os-dock-glyph {
    font-size: 1.2rem;
    line-height: 1;
}

.os-dock a[aria-current="page"] {
    color: var(--app-accent-ink, var(--neon-1));
}

.os-dock a[aria-current="page"]::before {
    content: '';
    position: absolute;
    top: 2px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--app-accent-ink, var(--neon-1));
    box-shadow: 0 0 8px var(--app-accent-ink, var(--neon-1));
}

.os-dock a:active { transform: scale(0.94); }

.os-cta-bar {
    position: sticky;
    bottom: calc(var(--os-dock-h) + var(--os-safe-bottom));
    z-index: 25;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    border-top: 1px solid var(--glass-border);
}

.os-cta-bar .os-cta-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--fs-sm);
    color: var(--text-1);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.os-beyond {
    padding: 40px 16px 64px;
}

.os-beyond-section {
    max-width: 640px;
    margin: 0 auto 48px;
    content-visibility: auto;
    contain-intrinsic-size: auto 600px;
}

.os-beyond-section h2 {
    font-size: var(--fs-h2);
    margin-bottom: 0.85rem;
}

.os-beyond-section p { color: var(--text-2); }

.os-beyond-section ul {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0;
}

.os-beyond-section ul li {
    position: relative;
    padding: 6px 0 6px 26px;
    color: var(--text-2);
}

.os-beyond-section ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 6px;
    color: var(--app-accent-ink, var(--neon-1));
    font-weight: 700;
}

.os-beyond-section details {
    border-top: 1px solid var(--glass-border);
    padding: 4px 0;
}

.os-beyond-section details summary {
    min-height: 44px;
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-1);
}

.os-footer {
    position: relative;
    z-index: 1;
    padding: 32px 16px calc(32px + var(--os-dock-h) + var(--os-safe-bottom));
    text-align: center;
    border-top: 1px solid var(--glass-border);
}

@media (min-width: 900px) {
    .os-footer { padding-bottom: calc(32px + var(--os-safe-bottom)); }
}

.os-footer p {
    font-size: 0.85rem;
    color: var(--text-3);
}

.os-footer a { color: var(--text-2); }
.os-footer a:hover { color: var(--text-1); }

/* breakpoints: phone (default) → 900–1099 frame → ≥1100 grid → ≥1600 cap */
@media (min-width: 900px) {
    .os-stage {
        display: flex;
        justify-content: center;
        padding: 32px 16px;
        background: var(--os-wallpaper), var(--bg-0);
    }

    .os-stage-bg { display: block; }

    .os-device {
        width: var(--os-frame-w);
        height: var(--os-frame-h);
        min-height: 0;
        border-radius: var(--os-frame-radius);
        overflow: hidden;
        border: 1px solid var(--glass-border);
        box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.45);
        background: var(--bg-0);
    }

    .os-statusbar { padding-top: 0; }

    .os-screen {
        overflow-y: auto;
        overscroll-behavior: contain;
        scrollbar-width: none;
    }
    .os-screen::-webkit-scrollbar { display: none; }

    .os-dock {
        position: static;
        padding-bottom: 0;
        flex: none;
    }

    .os-cta-bar { position: sticky; bottom: 0; }

    .os-footer { margin-top: 24px; }

    body[data-layout] .os-beyond,
    .os-beyond { max-width: 720px; margin: 0 auto; padding-top: 48px; }
}

@media (min-width: 900px) and (max-width: 1099.98px) {
    .os-icon { --os-icon-size: 72px; }
}

/* tablet portrait (e.g. iPad 768–899px): still the full-bleed phone layout
   below 900px, but centered to a readable column instead of edge-to-edge */
@media (min-width: 600px) and (max-width: 899.98px) {
    .os-screen > main {
        max-width: 560px;
        width: 100%;
        margin-inline: auto;
    }

    .os-beyond {
        max-width: 560px;
        margin-inline: auto;
    }
}

@media (min-width: 1100px) {
    .os-stage {
        display: grid;
        grid-template-columns: var(--os-frame-w) minmax(0, 640px);
        justify-content: center;
        align-items: start;
        gap: 48px;
        padding: 48px 24px;
    }

    .os-device {
        position: sticky;
        top: 32px;
        --os-icon-size: 72px;
    }

    .os-stage:has(> .os-device:only-child) {
        grid-template-columns: var(--os-frame-w);
    }

    .os-beyond {
        max-width: 640px;
        margin: 0;
        padding-top: 32px;
        align-self: start;
    }
}

@media (min-width: 1600px) {
    .os-stage { max-width: 1400px; margin: 0 auto; }
    body.os { background-attachment: fixed; }
}

/* data-layout="wide": tablet-style document-scroll frame, ≥900px */
body[data-layout="wide"] .os-stage {
    display: block;
}

@media (min-width: 900px) {
    body[data-layout="wide"] .os-stage {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    body[data-layout="wide"] .os-device {
        width: 100%;
        max-width: var(--os-wide-w);
        height: auto;
        min-height: 0;
        border-radius: 32px;
        margin: 0 auto;
        overflow: visible;
    }

    body[data-layout="wide"] .os-statusbar {
        position: sticky;
        top: 0;
        border-radius: 32px 32px 0 0;
    }

    body[data-layout="wide"] .os-screen {
        overflow: visible;
    }

    body[data-layout="wide"] .os-dock {
        position: sticky;
        bottom: 0;
    }

    body[data-layout="wide"] .os-cta-bar {
        bottom: calc(var(--os-dock-h) + var(--os-safe-bottom));
    }

    body[data-layout="wide"] .os-beyond {
        max-width: var(--os-wide-w);
    }
}

@media (min-width: 1100px) {
    body[data-layout="wide"] .os-stage {
        grid-template-columns: none;
        display: flex;
        flex-direction: column;
    }
    body[data-layout="wide"] .os-device { position: static; }
}

/* ==========================================================================
   Components
   ========================================================================== */

.os-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-lg);
    padding: 16px;
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    box-shadow: var(--shadow-card);
}

.os-list {
    border-radius: var(--r-lg);
    overflow: hidden;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
}

.os-list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 52px;
    padding: 10px 16px;
    color: var(--text-1);
    border-bottom: 1px solid var(--glass-border);
}

.os-list-item:last-child { border-bottom: none; }

a.os-list-item:hover { background: rgba(127, 127, 127, 0.06); }

.os-list-icon {
    width: 28px;
    text-align: center;
    color: var(--text-2);
}

.os-list-text { flex: 1; min-width: 0; }

.os-list-title {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--text-1);
}

.os-list-subtitle {
    display: block;
    font-size: var(--fs-xs);
    color: var(--text-3);
}

.os-list-chevron { color: var(--text-3); }

.os-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 32px;
    padding: 6px 14px;
    border-radius: var(--r-pill);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-2);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--dur-2) ease, color var(--dur-2) ease, border-color var(--dur-2) ease;
}

.os-chip.is-active {
    background: var(--gradient-cta);
    color: #fff;
    border-color: transparent;
}

/* switch (Control Center: reduce motion) */
.os-switch {
    width: 46px;
    height: 28px;
    border-radius: var(--r-pill);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    position: relative;
    cursor: pointer;
    flex: none;
    margin-left: auto;
    transition: background-color var(--dur-2) ease;
}

.os-switch-knob {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--text-1);
    transition: transform var(--dur-2) var(--ease-spring);
}

.os-switch[aria-checked="true"] {
    background: var(--gradient-cta);
    border-color: transparent;
}

.os-switch[aria-checked="true"] .os-switch-knob {
    transform: translateX(18px);
    background: #fff;
}

.os-feature {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 12px 0;
}

.os-feature-glyph {
    flex: none;
    width: 40px;
    height: 40px;
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    background: color-mix(in oklab, var(--app-accent, var(--neon-1)) 18%, transparent);
    color: var(--app-accent-ink, var(--neon-1));
}

.os-feature-title {
    font-weight: 600;
    color: var(--text-1);
    font-size: var(--fs-sm);
    margin-bottom: 2px;
}

.os-feature-body {
    font-size: var(--fs-sm);
    color: var(--text-2);
    margin: 0;
}

.os-section {
    padding: 24px 16px;
}

.os-section-title {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: 14px;
}

.os-app-hero {
    padding: 28px 20px 12px;
    text-align: center;
}

.os-app-hero-icon {
    width: 96px;
    height: 96px;
    border-radius: var(--os-icon-radius);
    margin: 0 auto 14px;
    box-shadow: var(--shadow-card);
}

.os-app-hero h1 {
    font-size: 1.75rem;
    margin-bottom: 4px;
}

.os-app-hero-tagline {
    color: var(--text-2);
    font-size: var(--fs-md);
    margin-bottom: 12px;
}

.os-app-hero-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.os-version-chip {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--text-3);
    padding: 4px 10px;
    border-radius: var(--r-pill);
    border: 1px solid var(--glass-border);
}

.os-app-hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

/* App Store badge: HTML form, mirrors images/badges/app-store-badge.svg */
.store-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 40px;
    min-width: 120px;
    padding: 0 12px;
    border-radius: 8px;
    background: #000;
    border: 1px solid #A6A6A6;
    color: #fff;
    line-height: 1.1;
}

.store-badge svg { width: 18px; height: 18px; flex: none; fill: currentColor; }

.store-badge-text {
    display: flex;
    flex-direction: column;
}

.store-badge-text small { font-size: 8px; letter-spacing: 0.02em; }
.store-badge-text span { font-size: 15px; font-weight: 600; font-family: -apple-system, "Helvetica Neue", Arial, sans-serif; }

.store-badge--soon {
    background: transparent;
    border-color: var(--glass-border);
    color: var(--text-3);
}

.store-badge--mac .store-badge-text small { content: 'Download on the'; }

/* ==========================================================================
   Home screen
   ========================================================================== */

.os-home-bar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 16px 0;
}

.os-home-bar .os-chip[aria-pressed="true"] {
    background: var(--gradient-cta);
    color: #fff;
    border-color: transparent;
}

.os-pages {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}
.os-pages::-webkit-scrollbar { display: none; }

.os-page {
    flex: none;
    width: 100%;
    scroll-snap-align: start;
    padding: 16px 16px 8px;
}

.os-widgets {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.os-widget {
    display: block;
    aspect-ratio: 1;
    border-radius: var(--r-lg);
    padding: 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: var(--text-1);
    transition: transform var(--dur-2) var(--ease-out), box-shadow var(--dur-2) ease;
}

.os-widget:hover { transform: translateY(-2px); box-shadow: var(--shadow-card-hover); }
.os-widget:active { transform: scale(0.98); }

.os-widget-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-3);
}

.os-widget-value {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-1);
    font-variant-numeric: tabular-nums;
}

.os-widget-sub {
    font-size: 0.72rem;
    color: var(--text-2);
}

.os-widget-since .os-widget-value { color: var(--neon-1); }

.os-widget-cloud {
    display: flex;
    align-items: center;
    margin: 4px 0;
}

.os-widget-cloud img {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    border: 2px solid var(--bg-1);
}

.os-widget-cloud img + img { margin-left: -8px; }

ul.os-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px 8px;
    list-style: none;
}

.os-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
    position: relative;
}

.os-icon img,
.os-icon-svg {
    width: var(--os-icon-size, var(--os-icon));
    height: var(--os-icon-size, var(--os-icon));
    border-radius: var(--os-icon-radius);
    box-shadow: 0 6px 16px -4px rgba(0, 0, 0, 0.35);
    transition: transform var(--dur-1) var(--ease-spring);
}

@supports (corner-shape: squircle) {
    .os-icon img,
    .os-icon-svg {
        corner-shape: squircle;
        border-radius: 30%;
    }
}

.os-icon-svg {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-2);
    color: var(--neon-1);
    font-size: 1.4rem;
}

.os-icon:active img,
.os-icon:active .os-icon-svg { transform: scale(0.92); }

.os-icon-label {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-1);
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.os-icon-tagline { display: none; }

.os-icon-badge {
    position: absolute;
    top: -2px;
    right: calc(50% - var(--os-icon-size, var(--os-icon)) / 2 - 4px);
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--soon);
    border: 2px solid var(--bg-0);
}

.os-icon-overlay {
    position: absolute;
    bottom: 20px;
    right: calc(50% - var(--os-icon-size, var(--os-icon)) / 2 - 6px);
    font-size: 0.85rem;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.5));
}

.os-icon.is-launching img,
.os-icon.is-launching .os-icon-svg {
    animation: os-launch var(--dur-2) var(--ease-out) forwards;
}

@keyframes os-launch {
    to { transform: scale(1.12); opacity: 0.85; }
}

/* list view */
.os-home[data-view="list"] .os-grid,
.os-home[data-view="list"] ul.os-grid {
    display: block;
}

.os-home[data-view="list"] .os-icon {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    text-align: left;
    padding: 8px 4px;
    border-bottom: 1px solid var(--glass-border);
}

.os-home[data-view="list"] .os-icon img,
.os-home[data-view="list"] .os-icon-svg {
    width: 44px;
    height: 44px;
}

.os-home[data-view="list"] .os-icon-label {
    white-space: normal;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.os-home[data-view="list"] .os-icon-tagline {
    display: block;
    font-size: 0.7rem;
    color: var(--text-3);
    font-weight: 400;
}

.os-home[data-view="list"] .os-icon::after {
    content: '›';
    margin-left: auto;
    color: var(--text-3);
}

/* jiggle (edit mode) */
.is-jiggling .os-icon {
    animation: os-jiggle 300ms ease-in-out infinite alternate;
    animation-delay: calc(var(--ji, 0) * 20ms);
}

@keyframes os-jiggle {
    from { transform: rotate(-1.5deg); }
    to { transform: rotate(1.5deg); }
}

.os-page-dots {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    padding: 0 0 8px;
}

.os-page-dots a {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
}

.os-page-dots a::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--glass-border-hover);
    transition: background-color var(--dur-2) var(--ease-out), width var(--dur-2) var(--ease-out), border-radius var(--dur-2) var(--ease-out);
}

.os-page-dots a[aria-current="true"]::before {
    background: var(--app-accent-ink, var(--neon-1));
    width: 18px;
    border-radius: 4px;
}

/* ==========================================================================
   Control Center / Spotlight / Toasts
   ========================================================================== */

.os-cc {
    position: fixed;
    top: calc(var(--os-statusbar-h) + var(--os-safe-top) + 8px);
    right: 12px;
    z-index: 60;
    width: min(320px, calc(100vw - 24px));
    max-height: 70vh;
    overflow-y: auto;
    padding: 16px;
    border-radius: var(--r-lg);
    background: var(--glass-bg-strong);
    border: 1px solid var(--glass-border);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    box-shadow: 0 24px 60px -12px rgba(0, 0, 0, 0.45);
}

.os-cc[popover] { position-anchor: --os-cc-anchor; }
#os-cc-btn { anchor-name: --os-cc-anchor; }

@supports (position-anchor: --x) {
    .os-cc {
        top: anchor(--os-cc-anchor bottom);
        right: 12px;
    }
}

.os-cc-section { margin-bottom: 14px; }
.os-cc-section:last-child { margin-bottom: 0; }

.os-cc-title {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-3);
    margin-bottom: 8px;
}

.os-cc-themes {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.os-theme-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 4px;
    border-radius: var(--r-sm);
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--text-2);
    font-size: 0.65rem;
    cursor: pointer;
}

.os-theme-tile[aria-pressed="true"] {
    border-color: var(--neon-1);
    color: var(--text-1);
    box-shadow: 0 0 0 1px var(--neon-1);
}

.os-theme-swatch {
    width: 26px;
    height: 26px;
    border-radius: 50%;
}

.os-theme-swatch[data-swatch="light"] { background: linear-gradient(135deg, #0891B2, #2563EB, #E11D48); }
.os-theme-swatch[data-swatch="dusk"] { background: linear-gradient(135deg, #FBBF24, #FB923C, #F472B6); }
.os-theme-swatch[data-swatch="night"] { background: linear-gradient(135deg, #22D3EE, #8B5CF6, #FF6AC2); }
.os-theme-swatch[data-swatch="void"] { background: linear-gradient(135deg, #00E5FF, #9D4EFF, #FF2EC4); }
.os-theme-swatch[data-swatch="forest"] { background: linear-gradient(135deg, #A3E635, #34D399, #2DD4BF); }
.os-theme-swatch[data-swatch="ocean"] { background: linear-gradient(135deg, #22D3EE, #38BDF8, #818CF8); }
.os-theme-swatch[data-swatch="candy"] { background: linear-gradient(135deg, #EC4899, #A855F7, #F59E0B); }

@starting-style {
    .os-cc:popover-open { opacity: 0; transform: translateY(-6px) scale(0.98); }
}

.os-cc:popover-open {
    opacity: 1;
    transform: none;
    transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out), display var(--dur-2) allow-discrete, overlay var(--dur-2) allow-discrete;
}

.os-cc:not(:popover-open) {
    opacity: 0;
    transform: translateY(-6px) scale(0.98);
    transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out), display var(--dur-2) allow-discrete, overlay var(--dur-2) allow-discrete;
}

/* manual fallback for browsers without the popover API */
.os-cc.is-open {
    display: block;
}
.os-cc:not(.is-open):not([popover]) { display: none; }

.os-spotlight {
    position: fixed;
    top: calc(var(--os-statusbar-h) + var(--os-safe-top) + 12px);
    left: 50%;
    transform: translateX(-50%);
    z-index: 60;
    width: min(480px, calc(100vw - 32px));
    max-height: 70vh;
    padding: 0;
    border: 1px solid var(--glass-border);
    border-radius: var(--r-lg);
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    box-shadow: 0 24px 60px -12px rgba(0, 0, 0, 0.5);
    color: var(--text-1);
}

.os-spotlight::backdrop {
    background: rgba(0, 0, 0, 0.35);
}

.os-spotlight-form {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--glass-border);
}

.os-spotlight-icon { color: var(--text-3); }

.os-spotlight-input {
    flex: 1;
    height: 48px;
    border: none;
    background: transparent;
    font-size: 1rem;
    color: var(--text-1);
    min-height: 0;
}
.os-spotlight-input:focus { box-shadow: none; }
.os-spotlight-input::-webkit-search-cancel-button,
.os-spotlight-input::-webkit-search-decoration { display: none; -webkit-appearance: none; appearance: none; }

.os-spotlight-results {
    list-style: none;
    max-height: 50vh;
    overflow-y: auto;
    padding: 8px;
}

.os-spotlight-results li { margin-bottom: 2px; }

.os-spotlight-results a {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
    padding: 10px 10px;
    border-radius: var(--r-sm);
    color: var(--text-1);
    font-size: 0.9rem;
}

.os-spotlight-results a span { display: flex; flex-direction: column; }
.os-spotlight-results a small {
    display: block;
    font-size: var(--fs-xs);
    color: var(--text-2);
    font-weight: 400;
}

.os-spotlight-results a img { width: 28px; height: 28px; border-radius: 8px; }

.os-spotlight-results a.is-active,
.os-spotlight-results a:hover {
    background: var(--glass-bg);
}

.os-spotlight-empty {
    padding: 24px 16px;
    text-align: center;
    color: var(--text-3);
    font-size: 0.85rem;
}

@starting-style {
    .os-spotlight[open] { opacity: 0; transform: translateX(-50%) translateY(-8px); }
}

.os-spotlight[open] {
    opacity: 1;
    transform: translateX(-50%);
    transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out);
}

.os-toasts {
    position: fixed;
    top: calc(var(--os-statusbar-h) + var(--os-safe-top) + 8px);
    left: 50%;
    transform: translateX(-50%);
    z-index: 70;
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: min(360px, calc(100vw - 24px));
    pointer-events: none;
}

@media (min-width: 900px) {
    .os-toasts { position: absolute; }
}

.os-toast {
    pointer-events: auto;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    border-radius: var(--r-md);
    background: var(--glass-bg-strong);
    border: 1px solid var(--glass-border);
    -webkit-backdrop-filter: var(--glass-blur);
    backdrop-filter: var(--glass-blur);
    box-shadow: 0 16px 40px -10px rgba(0, 0, 0, 0.4);
    color: var(--text-1);
}

.os-toast-icon { font-size: 1.1rem; flex: none; }
.os-toast-body { flex: 1; min-width: 0; }
.os-toast-title { font-weight: 600; font-size: 0.88rem; }
.os-toast-text { font-size: 0.8rem; color: var(--text-2); margin-top: 2px; }
.os-toast-action { font-size: 0.78rem; font-weight: 600; margin-top: 4px; display: inline-block; }
.os-toast-close { background: none; border: none; color: var(--text-3); cursor: pointer; font-size: 0.9rem; flex: none; }

@starting-style {
    .os-toast { opacity: 0; transform: translateY(-8px) scale(0.96); }
}
.os-toast {
    opacity: 1;
    transform: none;
    transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out);
}
.os-toast.is-leaving {
    opacity: 0;
    transform: translateY(-8px) scale(0.96);
}

/* ==========================================================================
   Demo slot base (demos.css extends)
   ========================================================================== */

.demo {
    position: relative;
    overflow: hidden;
    border-radius: var(--r-lg);
    background: var(--bg-2);
    width: 100%;
    max-width: 480px;
    min-height: 380px;
    margin: 16px auto;
}

/* The inline aspect-ratio only reserves space before the demo mounts (no
   layout shift). Once live, let taller demos grow instead of scrolling
   inside their box. */
.demo[data-demo-state="ready"] {
    aspect-ratio: auto !important;
}

/* Playground: one .os-section per app, each holding one .demo. Lay the
   sections out as a responsive grid instead of one long narrow column
   (collapses to a single column automatically on phones). */
body[data-app="play"] .os-screen > main {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
    align-items: start;
}

body[data-app="play"] .os-screen > main > .os-section:not(.pg-app) {
    grid-column: 1 / -1;
}

body[data-app="play"] .demo {
    margin: 16px 0 0;
    max-width: none;
}

.demo-fallback {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px;
    text-align: center;
}

.demo-caption {
    font-size: 0.8rem;
    color: var(--text-3);
}

/* ==========================================================================
   View transitions
   ========================================================================== */

@media (prefers-reduced-motion: no-preference) {
    @view-transition {
        navigation: auto;
    }

    ::view-transition-old(root),
    ::view-transition-new(root) {
        animation-duration: 180ms;
    }

    ::view-transition-group(app-icon) {
        animation-duration: 380ms;
        animation-timing-function: var(--ease-out);
    }
}

html[data-motion="reduce"] .os-app-hero-icon,
html[data-motion="reduce"] [data-launch] img {
    view-transition-name: none !important;
}

/* ==========================================================================
   Motion & accessibility
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .is-jiggling .os-icon { animation: none; }
    .os-icon.is-launching img,
    .os-icon.is-launching .os-icon-svg { animation: none; }
    .os-widget,
    .os-icon img,
    .os-icon-svg { transition: none; }
}

html[data-motion="reduce"] .is-jiggling .os-icon { animation: none; }
html[data-motion="reduce"] .os-icon.is-launching img,
html[data-motion="reduce"] .os-icon.is-launching .os-icon-svg { animation: none; }
html[data-motion="reduce"] .os-widget,
html[data-motion="reduce"] .os-icon img,
html[data-motion="reduce"] .os-icon-svg { transition: none; }

@media (max-width: 899.98px) {
    .os-icon-badge,
    .os-icon-overlay { right: calc(50% - var(--os-icon, 64px) / 2 - 4px); }
}