.app-wrapper {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.app-header {
    background-color: var(--primary);
    color: white;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

.app-header .logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
}

.app-header nav a {
    color: white;
    opacity: 0.85;
    padding: 6px 14px;
    border-radius: var(--radius);
}

.app-header nav a:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

.tab-nav {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 24px;
    gap: 4px;
}

.tab-nav a {
    padding: 10px 20px;
    border-radius: var(--radius) var(--radius) 0 0;
    color: var(--text-muted);
    font-weight: 500;
    display: inline-block;
}

.tab-nav a:hover {
    background-color: var(--bg);
}

.tab-nav a.active {
    background-color: var(--surface);
    border: 2px solid var(--border);
    border-bottom-color: transparent;
    color: var(--primary);
    font-weight: 600;
}

.page-content {
    padding: 24px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
}