:root {
    --bg-main: #F4F7F6;
    --bg-card: #FFFFFF;
    --text-primary: #2C3E50;
    --text-secondary: #7F8C8D;
    --primary-color: #00796B;
    --primary-hover: #005A4F;
    --border-color: #E0E6E8;
    --error-bg: #FDEDED;
    --error-text: #5F2120;
    --error-border: #F1A8A8;
    --success-bg: #EDF7ED;
    --success-text: #1E4620;
    --success-border: #A5D6A7;
    --warning-bg: #FFF4E5;
    --warning-text: #663C00;
    --warning-border: #FFCC80;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --radius: 12px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.header-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.app-header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.card-header .material-icons {
    color: var(--text-secondary);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.flex-3 { flex: 3; }
.flex-1 { flex: 1; }

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper .material-icons {
    position: absolute;
    left: 1rem;
    color: var(--text-secondary);
    font-size: 1.25rem;
    pointer-events: none;
}

input, select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition);
    background-color: var(--bg-card);
}

.input-wrapper input, .input-wrapper select {
    padding-left: 3rem;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 121, 107, 0.1);
}

.primary-btn {
    width: 100%;
    padding: 0.875rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition);
    margin-top: 1rem;
}

.primary-btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.primary-btn:active {
    transform: translateY(0);
}

.primary-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

.hide {
    display: none !important;
}

hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 1.5rem 0;
}

.alert {
    display: flex;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    border: 1px solid transparent;
}

.alert-icon {
    font-size: 1.5rem;
    margin-top: 2px;
}

.alert.success {
    background-color: var(--success-bg);
    border-color: var(--success-border);
    color: var(--success-text);
}
.alert.success .alert-icon { color: var(--success-text); }

.alert.error {
    background-color: var(--error-bg);
    border-color: var(--error-border);
    color: var(--error-text);
}
.alert.error .alert-icon { color: var(--error-text); }

.alert.warning {
    background-color: var(--warning-bg);
    border-color: var(--warning-border);
    color: var(--warning-text);
}
.alert.warning .alert-icon { color: var(--warning-text); }

.alert-content p {
    margin-top: 0.25rem;
    font-size: 0.9rem;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.resource-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.resource-item .label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.resource-item .value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.progress-container {
    margin-bottom: 1.5rem;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.progress-header .label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.progress-header .value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.progress-bar-wrapper {
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 4px;
    width: 0%;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-bar.high {
    background-color: #E53935;
}

.table-responsive {
    overflow-x: auto;
}

.interface-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    font-size: 0.9rem;
}

.interface-table th, .interface-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.interface-table th {
    background-color: var(--bg-main);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

.interface-table tbody tr {
    transition: var(--transition);
}

.interface-table tbody tr:hover {
    background-color: #F8FAFB;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}

.status-running {
    background-color: var(--success-bg);
    color: var(--success-text);
}

.status-down {
    background-color: var(--error-bg);
    color: var(--error-text);
}

.status-warning {
    background-color: var(--warning-bg);
    color: var(--warning-text);
}

.status-disabled {
    background-color: #ECEFF1;
    color: #607D8B;
}

.search-box {
    display: flex;
    align-items: center;
    background: #F8FAFB;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 4px 12px;
    width: 250px;
    transition: var(--transition);
}
.search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 121, 107, 0.1);
}
.search-box .material-icons {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-right: 8px;
}
.search-box input {
    border: none;
    background: transparent;
    padding: 4px 0;
    width: 100%;
    outline: none;
    font-size: 0.9rem;
}
.search-box input:focus {
    box-shadow: none;
}

.pagination-controls {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.pagination-controls button {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px;
    transition: var(--transition);
}
.pagination-controls button:hover:not(:disabled) {
    background: var(--bg-main);
    border-color: var(--text-secondary);
}
.pagination-controls button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}