/*
 * shell.css - Extracted from styles.css during the layered stylesheet split.
 * Ownership: Top-level app shell layout and shared chat-window chrome.
 * Keep selector names/order stable in this first move-only tranche.
 */

/* Layout */
.app-shell {
    position: relative;
    display: flex;
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
}

.app-shell.chat-only {
    justify-content: center;
}

.app-shell.chat-only .container {
    width: 100%;
    max-width: min(100%, 980px);
    margin: 0 auto;
}

.app-shell.resume-layout-settling > .workspace-sidebar,
.app-shell.resume-layout-settling > .workspace-splitter,
.app-shell.resume-layout-settling > .container,
.app-shell.resume-layout-settling > .editor-pane-container {
    transition: none !important;
}

.system-meters-hud {
    pointer-events: none;
}

.system-meters-hud-overlay {
    position: absolute;
    top: 10px;
    right: 12px;
    z-index: 50;
}

.system-meters-hud-inline {
    display: none;
    flex: 0 0 auto;
}

.system-meters-card {
    display: inline-flex;
    flex-direction: column;
    gap: 4px;
    min-width: 150px;
    padding: 7px 9px;
    border-radius: 12px;
    border: 1px solid color-mix(in srgb, var(--border-color) 86%, transparent);
    background: color-mix(in srgb, var(--bg-primary) 76%, transparent);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 24px color-mix(in srgb, var(--shadow-color, #000) 14%, transparent);
    pointer-events: auto;
    appearance: none;
    color: inherit;
    font: inherit;
    text-align: left;
    cursor: pointer;
    user-select: none;
    transition: transform 140ms ease, opacity 140ms ease, padding 140ms ease, min-width 140ms ease;
}

.system-meters-card:hover {
    transform: translateY(-1px);
}

.system-meters-card:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.system-meters-hud.is-collapsed .system-meters-card {
    min-width: 0;
    padding: 6px 5px;
    opacity: 0.78;
}

.system-meters-hud-overlay.is-collapsed .system-meters-card,
.system-meters-hud-overlay.is-collapsed .system-meters-card:hover {
    transform: translateX(8px);
}

.system-meters-hud-inline.is-collapsed .system-meters-card,
.system-meters-hud-inline.is-collapsed .system-meters-card:hover {
    transform: translateX(6px);
}

.system-meters-collapse-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 12px;
    font-size: 12px;
    line-height: 1;
    color: var(--text-secondary);
}

.system-meters-row {
    display: grid;
    grid-template-columns: 34px 56px auto;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    line-height: 1;
}

.system-meters-label {
    font-weight: 700;
    color: var(--text-secondary);
}

.system-meters-value {
    min-width: 34px;
    text-align: right;
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
}

.system-meters-spark {
    width: 56px;
    height: 16px;
    overflow: visible;
}

.system-meters-spark path {
    fill: none;
    stroke-width: 1.9;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.system-meters-row.cpu .system-meters-spark path {
    stroke: color-mix(in srgb, var(--accent-color) 88%, var(--text-primary));
}

.system-meters-row.ram .system-meters-spark path {
    stroke: color-mix(in srgb, var(--accent-color) 55%, var(--success-color) 45%);
}

.system-meters-row.swap .system-meters-spark path {
    stroke: color-mix(in srgb, var(--accent-color) 60%, var(--warning-color, #f59e0b) 40%);
}

@media (max-width: 900px) {
    .chat-window-header {
        flex-wrap: wrap;
        align-items: flex-start;
    }

    .chat-window-header-main {
        flex: 1 1 100%;
    }

    .system-meters-hud-overlay {
        top: max(10px, calc(env(safe-area-inset-top, 0px) + 8px));
        right: max(8px, calc(env(safe-area-inset-right, 0px) + 8px));
    }

    .system-meters-hud-overlay .system-meters-card {
        min-width: 0;
        max-width: min(72vw, 280px);
        padding: 6px 9px;
        border-radius: 999px;
        backdrop-filter: blur(12px);
    }

    .system-meters-hud-overlay.is-collapsed .system-meters-card {
        padding: 6px 5px;
    }

    .system-meters-hud-overlay.is-collapsed .system-meters-card,
    .system-meters-hud-overlay.is-collapsed .system-meters-card:hover {
        transform: translateX(10px);
    }

    .system-meters-compact-summary {
        display: inline-flex;
        align-items: center;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        font-size: 11px;
        line-height: 1;
        font-weight: 600;
        color: var(--text-primary);
    }

    .chat-window-header-actions {
        flex: 1 1 auto;
        justify-content: flex-end;
        flex-wrap: wrap;
    }
}

.chat-window-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.chat-window-header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 0;
}

.chat-window-header-main {
    display: flex;
    flex-direction: column;
    min-width: 0;
    gap: 2px;
}

.chat-window-header-title {
    font-family: var(--font-mono, monospace);
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-window-header-subtitle {
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-window-header-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 10.5px;
    line-height: 1;
    white-space: nowrap;
}

.chat-window-header-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 30px;
    padding: 0 10px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    font: inherit;
    cursor: pointer;
    white-space: nowrap;
}

.chat-window-header-button:hover {
    background: var(--bg-hover);
}

.chat-window-header-button:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.chat-window-branch-picker-wrap {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

.chat-window-branch-picker-label {
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.chat-window-branch-picker {
    min-width: 180px;
    max-width: min(38vw, 340px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 6px 10px;
    font: inherit;
}