:root {
    --bg-color: #f4f6f9;
    --card-bg: #ffffff;
    --text-main: #333333;
    --text-muted: #666666;
    --primary: #3b82f6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border-color: #e5e7eb;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    padding: 2rem;
}

.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Top Summary Section */
.dashboard-header {
    background-color: var(--card-bg);
    padding: 1.5rem 2rem;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dashboard-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.device-counter {
    font-size: 1.1rem;
    color: var(--text-muted);
}

.device-counter span {
    font-weight: bold;
    color: var(--primary);
}

/* Device Grid Section */
.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 350px));
    gap: 1.5rem;
    justify-content: start; 
}

.device-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border-left: 5px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.device-card.running {
    border-left-color: var(--primary);
}

.device-card.success {
    border-left-color: var(--success);
}

.device-card.warning {
    border-left-color: var(--warning);
}

.device-card.error {
    border-left-color: var(--danger);
}

.device-name {
    font-size: 1.1rem;
    font-weight: 600;
}

.device-status {
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.online .device-status { color: var(--success); }
.warning .device-status { color: var(--warning); }
.offline .device-status { color: var(--danger); }

.device-message {
    font-size: 0.9rem;
    color: var(--text-muted);
    background-color: var(--bg-color);
    padding: 0.75rem;
    border-radius: 4px;
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Modal Box */
.modal-content {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    width: 90%;
    max-width: 650px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

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

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.close-btn:hover {
    color: var(--text-main);
}

/* Log Text Box Styling */
.log-output {
    background-color: var(--bg-color);
    padding: 1rem;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.85rem;
    max-height: 350px;
    overflow-y: auto;
    white-space: pre-wrap;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

/* Link inside device card */
.device-link {
    font-size: 0.85rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    margin-top: auto;
    display: inline-block;
}

.device-link:hover {
    text-decoration: underline;
}