:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-color: #f1f5f9;
    --border-color: #334155;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--text-color);
    min-height: 100vh;
}

/* Login Screen */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border-color);
}

.login-box h1 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--primary-color);
    font-size: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background: var(--bg-color);
    color: var(--text-color);
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    width: 100%;
}

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

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

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

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

/* Dashboard */
.header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 20px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 24px;
    color: var(--primary-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
    font-size: 20px;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* System Info Grid */
.system-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.system-item {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.system-item h3 {
    font-size: 16px;
    margin-bottom: 12px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.system-item div {
    font-size: 14px;
    line-height: 1.6;
}

/* WOL Config */
.wol-config {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

/* Load Info */
.load-info {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-top: 20px;
}

.load-info h3 {
    font-size: 16px;
    margin-bottom: 12px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Process Table */
#processesTable {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

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

table th {
    background: var(--bg-color);
    font-weight: 600;
    color: var(--primary-color);
}

table tr:hover {
    background: var(--bg-color);
}

/* Control Buttons */
.control-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

/* Status Messages */
.status-message,
.error-message {
    padding: 12px;
    border-radius: 6px;
    margin-top: 15px;
    display: none;
}

.status-message.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
    display: block;
}

.status-message.error,
.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    display: block;
}

.status-message.info {
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    display: block;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    max-width: 400px;
    width: 90%;
    border: 1px solid var(--border-color);
}

.modal-content h3 {
    margin-bottom: 15px;
    color: var(--text-color);
}

.modal-content p {
    margin-bottom: 25px;
    line-height: 1.6;
}

.modal-buttons {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* Progress Bar */
.progress-bar {
    background: var(--bg-color);
    border-radius: 4px;
    height: 8px;
    overflow: hidden;
    margin-top: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--success-color));
    transition: width 0.3s;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .control-buttons {
        flex-direction: column;
    }

    .control-buttons .btn {
        width: 100%;
    }

    .system-grid {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeIn 0.5s ease-out;
}

/* Device Cards */
.devices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.device-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s;
}

.device-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.device-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 15px;
}

.device-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 5px;
}

.device-mac {
    font-size: 14px;
    color: var(--secondary-color);
    font-family: 'Courier New', monospace;
}

.device-description {
    font-size: 14px;
    color: var(--secondary-color);
    margin: 10px 0;
    line-height: 1.4;
}

.device-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.device-actions .btn {
    flex: 1;
    padding: 8px 16px;
    font-size: 13px;
}

.btn-icon {
    padding: 8px 12px;
    min-width: auto;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--secondary-color);
}

.empty-state i {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
}

textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    resize: vertical;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}