:root {
    --bg-main: #212121;
    --bg-sidebar: #171717;
    --bg-card: #2d2d2d;
    --bg-input: #2f2f2f;
    --border-color: #2f2f2f;
    --text-primary: #ececf1;
    --text-secondary: #b4b4b4;
    --color-primary: #10b981; /* Emerald Accent */
    --color-danger: #ef4444;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    padding: 16px;
    display: flex;
    flex-direction: column;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
    padding: 8px;
}

.logo h2 {
    font-size: 18px;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.sidebar-footer {
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.main-content {
    flex: 1;
    padding: 30px 40px;
    overflow-y: auto;
}

.tab-view {
    display: none;
}

.tab-view.active {
    display: block;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.subtitle {
    color: var(--text-secondary);
    margin-top: 4px;
    font-size: 13px;
}

.flat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.card-header {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
}

.card-val {
    font-size: 28px;
    font-weight: 600;
    margin: 8px 0 4px 0;
}

.card-footer {
    font-size: 11px;
    color: var(--text-secondary);
}

.charts-section {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 20px;
    margin-bottom: 30px;
}

.table-wrapper {
    overflow-x: auto;
    margin-top: 15px;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th, td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
}

td {
    font-size: 14px;
}

.text-success { color: var(--color-primary); }
.text-danger { color: var(--color-danger); }
.text-center { text-align: center; }

.badge {
    padding: 3px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-primary);
}

.badge-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    font-size: 13px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}

.btn-secondary {
    background-color: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background-color: var(--color-danger);
    color: white;
}

/* Forms styling */
.form-row {
    display: flex;
    gap: 16px;
    margin-top: 15px;
}

.form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

input[type="text"], input[type="password"], textarea {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    padding: 10px 12px;
    border-radius: 6px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    outline: none;
}

input[type="text"]:focus, textarea:focus {
    border-color: #4f4f4f;
}

.form-textarea {
    width: 100%;
    resize: vertical;
    margin-top: 12px;
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Alerting Configuration Styles */
.alert-channel-section {
    padding: 16px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-top: 16px;
}

.channel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.channel-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
}

.toggle-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.toggle-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
}

.alert-test-result {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    animation: fadeIn 0.3s ease-in;
}

.alert-test-result.success {
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--color-primary);
}

.alert-test-result.error {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--color-danger);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 12px;
    }
    .logo {
        margin-bottom: 15px;
        justify-content: center;
    }
    .nav-menu {
        flex-direction: row;
        justify-content: space-around;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 10px;
    }
    .nav-menu a {
        padding: 8px 12px;
        font-size: 13px;
    }
    .main-content {
        padding: 20px 15px;
    }
    .charts-section {
        grid-template-columns: 1fr;
    }
    .header-flex {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .card-val {
        font-size: 22px;
    }
}