:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --danger: #ef4444;
    --success: #22c55e;
    --border: #334155;
    --radius: 12px;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

/* Card Styles */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.tenant-name {
    font-weight: 600;
    font-size: 1.2rem;
}

.tenant-port {
    font-family: monospace;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
}

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

.status-stopped {
    color: var(--danger);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-running .status-dot {
    background-color: var(--success);
    box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.2);
}

.status-stopped .status-dot {
    background-color: var(--danger);
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
}

.card-actions {
    margin-top: 1.5rem;
    display: flex;
    gap: 0.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-size: 0.9rem;
    flex: 1;
}

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

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

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

.btn-danger:hover {
    background-color: rgba(239, 68, 68, 0.2);
}

.btn-success {
    background-color: rgba(34, 197, 94, 0.1);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.btn-success:hover {
    background-color: rgba(34, 197, 94, 0.2);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.btn-outline:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

/* New Tenant Card */
.new-tenant-card {
    border: 2px dashed var(--border);
    background: transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    cursor: pointer;
}

.new-tenant-card:hover {
    border-color: var(--accent);
    background: rgba(59, 130, 246, 0.05);
}

.plus-icon {
    font-size: 2rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--radius);
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

input {
    width: 100%;
    padding: 0.8rem;
    background: var(--bg-color);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: white;
    font-size: 1rem;
}

input:focus {
    outline: none;
    border-color: var(--accent);
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 2rem;
    border: 1px solid transparent;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.2);
    color: #86efac;
}