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

:root {
    --primary-color: #4CAF50;
    --danger-color: #f44336;
    --warning-color: #ff9800;
    --info-color: #2196F3;
}

/* Dark theme (default) */
[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --card-bg: #2d2d2d;
    --text-color: #e0e0e0;
    --border-color: #404040;
}

/* Light theme */
[data-theme="light"] {
    --bg-color: #f5f5f5;
    --card-bg: #ffffff;
    --text-color: #333333;
    --border-color: #e0e0e0;
}

/* Default to dark theme */
body {
    background: var(--bg-color);
    color: var(--text-color);
}

html {
    background: var(--bg-color);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 30px;
}

h1 {
    font-size: 2rem;
    color: var(--primary-color);
}

h2 {
    margin-bottom: 20px;
    color: var(--text-color);
    font-size: 1.5rem;
}

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

.status-badge {
    font-size: 1.5rem;
    animation: pulse 2s infinite;
}

.status-badge.online {
    color: var(--primary-color);
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

section {
    margin-bottom: 40px;
}

.displays-grid,
.devices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

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

.card-title {
    font-size: 1.2rem;
    font-weight: 600;
}

.badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

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

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

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

.card-content {
    margin-bottom: 15px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    color: #999;
}

.info-value {
    font-weight: 600;
}

.card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: opacity 0.2s;
    flex: 1 1 auto;
    min-width: 100px;
}

.btn:hover {
    opacity: 0.9;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

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

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

.display-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
}

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

.display-index {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--info-color);
}

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

.badge-secondary {
    background: var(--border-color);
    color: var(--text-secondary);
}

/* Display Layout Visualization */
.display-layout-preview {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.display-layout-preview h3 {
    margin: 0 0 15px 0;
    font-size: 1.1rem;
    color: var(--text-color);
}

.display-layout-canvas {
    background: var(--bg-color);
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 30px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.layout-container {
    position: relative;
    background: transparent;
}

.layout-display {
    position: absolute;
    border: 3px solid;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: help;
}

.layout-display:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
    z-index: 10;
}

.layout-display.primary {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.15), rgba(76, 175, 80, 0.05));
}

.layout-display.secondary {
    border-color: var(--border-color);
    background: linear-gradient(135deg, rgba(128, 128, 128, 0.1), rgba(128, 128, 128, 0.05));
}

.layout-display-label {
    text-align: center;
    padding: 5px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.layout-display-label strong {
    font-size: 0.9rem;
    color: var(--text-color);
    font-weight: 600;
}

.layout-display-label small {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.primary-indicator {
    position: absolute;
    top: 5px;
    right: 5px;
    color: var(--primary-color);
    font-size: 1.2rem;
    text-shadow: 0 0 3px rgba(0, 0, 0, 0.3);
}

.layout-legend {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.legend-dot {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    border: 2px solid;
}

.legend-dot.primary {
    border-color: var(--primary-color);
    background: rgba(76, 175, 80, 0.2);
}

.legend-dot.secondary {
    border-color: var(--border-color);
    background: rgba(128, 128, 128, 0.2);
}

.add-device-section {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: #999;
    font-weight: 500;
}

input[type="text"],
input[type="url"],
input[type="number"],
input[type="password"],
select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 1rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    transition: border-color 0.2s, box-shadow 0.2s;
}

/* Better password field appearance */
input[type="password"] {
    letter-spacing: 0.15em;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

/* Remove browser autofill styling */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
    -webkit-box-shadow: 0 0 0 1000px var(--bg-color) inset;
    -webkit-text-fill-color: var(--text-color);
    transition: background-color 5000s ease-in-out 0s;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #999;
}

.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 4px;
    color: white;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 1000;
}

.toast.show {
    opacity: 1;
}

.toast.success {
    background: var(--primary-color);
}

.toast.error {
    background: var(--danger-color);
}

.toast.info {
    background: var(--info-color);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 10px;
}

.metric {
    text-align: center;
    padding: 10px;
    background: var(--bg-color);
    border-radius: 4px;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.metric-label {
    font-size: 0.85rem;
    color: #999;
    margin-top: 5px;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: 24px 24px 16px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--text-color);
}

.modal-body {
    padding: 24px;
}

.modal-description {
    color: #999;
    margin-bottom: 20px;
    line-height: 1.6;
}

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

.password-input-wrapper input {
    flex: 1;
    padding-right: 45px;
}

.password-toggle {
    position: absolute;
    right: 8px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 8px;
    color: var(--text-color);
    opacity: 0.6;
    transition: opacity 0.2s;
}

.password-toggle:hover {
    opacity: 1;
}

.input-hint {
    display: block;
    margin-top: 8px;
    color: #666;
    font-size: 0.85rem;
}

.error-message {
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    padding: 12px;
    border-radius: 4px;
    margin-top: 15px;
    font-size: 0.9rem;
}

.modal-footer {
    padding: 16px 24px 24px 24px;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.modal-footer .btn {
    min-width: 100px;
}

/* Theme Toggle */
.theme-toggle {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: transform 0.2s;
    margin-left: 10px;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .displays-grid,
    .devices-grid {
        grid-template-columns: 1fr;
    }

    header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .modal-content {
        width: 95%;
        margin: 20px;
    }

    .modal-footer {
        flex-direction: column-reverse;
    }

    .modal-footer .btn {
        width: 100%;
    }
}