/**
 * App Layout & Header Styles
 *
 * Contains: App container, header, main layout structure
 * Used by: app.js (main application)
 */

/* ===== App Container ===== */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== Header ===== */
.app-header {
    height: var(--header-height);
    padding: 0 1.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-left h1 {
    font-size: 1.25rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent-blue-light), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-badge {
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 9999px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Status Indicator */
.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-orange);
    animation: pulse 2s infinite;
}

.status-indicator.ready {
    background: var(--accent-green);
    animation: none;
}

.status-indicator.error {
    background: var(--accent-red);
    animation: none;
}

.status-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Header Divider */
.header-divider {
    width: 1px;
    height: 24px;
    background: var(--border-subtle);
    margin: 0 0.25rem;
}

/* User Greeting */
.user-greeting {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.user-greeting svg {
    color: var(--accent-blue);
    flex-shrink: 0;
}

.user-greeting #usernameDisplay {
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-weight: 500;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ===== Main Layout ===== */
.main-layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    flex: 1;
}

@media (max-width: 900px) {
    .main-layout {
        grid-template-columns: 1fr;
    }

    .control-panel {
        order: 2;
    }

    .chart-area {
        order: 1;
    }
}