/* =========================================================================
   APP SHELL
   ========================================================================= */

/* Top header */
#app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    padding: 0 16px;
    /* Fixed chrome is laid out against the viewport, so the body's side
       safe-area padding never reaches it. Clear the notch in landscape here. */
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
    padding-top: env(safe-area-inset-top);
    height: calc(var(--header-h) + env(safe-area-inset-top));
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(7, 7, 10, 0.82);
    backdrop-filter: blur(20px) saturate(1.3);
    -webkit-backdrop-filter: blur(20px) saturate(1.3);
    border-bottom: 1px solid rgba(255,255,255,0.04);
    z-index: 40;
}

#app-title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    flex: 1;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Status bar (inline at top of main content) */
#status-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    font-size: 0.72rem;
    padding: 4px 8px 10px;
    margin-top: -4px;
}

#status-bar:empty { display: none; }

.status-warn { color: var(--warn); }
.status-ok { color: var(--ok); }
.status-err { color: var(--err); }

/* Pull-to-refresh indicator */
#pull-indicator {
    position: fixed;
    top: calc(var(--header-h) + env(safe-area-inset-top) + 8px);
    left: 50%;
    transform: translate(-50%, -40px);
    width: 36px;
    height: 36px;
    background: var(--surface-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-2);
    z-index: 30;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
    box-shadow: var(--shadow);
}

#pull-indicator.visible { opacity: 1; }
#pull-indicator.refreshing svg { animation: spin 0.9s linear infinite; }

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Main scroll area */
#app-main {
    position: fixed;
    top: calc(var(--header-h) + env(safe-area-inset-top));
    left: 0;
    right: 0;
    bottom: var(--nav-h);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
    padding: 12px;
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    transition: bottom 0.3s var(--ease-out);
}

body.has-mini-player #app-main {
    bottom: calc(var(--nav-h) + var(--mini-h));
}

/* Screens */
.screen { display: none; }
.screen.active { display: block; animation: fadeIn 0.25s var(--ease-out); }