:root {
    --primary-color: #2c3e50;
    --accent-color: #3498db;
    --bg-color: #f4f7f6;
    --card-bg: #ffffff;
    --text-color: #333;
    --status-online: #2ecc71;
    --status-offline: #e74c3c;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

#auth-section {
    margin-bottom: 0.5rem;
}

#login-btn, #logout-btn {
    background-color: #4285F4;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

#logout-btn {
    background-color: #e74c3c;
    margin-left: 10px;
}

#user-info {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
}

#status-bar {
    font-size: 0.8rem;
    margin-top: 5px;
    opacity: 0.8;
}

.status-online { color: var(--status-online); font-weight: bold; }
.status-offline { color: var(--status-offline); font-weight: bold; }

main {
    max-width: 800px;
    margin: 20px auto;
    padding: 0 15px;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.entity-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.2s;
}

.entity-card:hover {
    transform: translateY(-2px);
}

.entity-card h3 {
    margin-top: 0;
    font-size: 1.1rem;
}

.entity-type {
    font-size: 0.8rem;
    color: #7f8c8d;
    margin-bottom: 15px;
}

.controls {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

button {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 8px;
    background-color: var(--accent-color);
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
}

button:active {
    opacity: 0.8;
}

button.stop-btn {
    background-color: #e67e22;
}

.position-control, .slats-control, .room-position-control, .room-slats-control {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    margin-top: 8px;
}

.position-control input, .slats-control input, .room-position-control input, .room-slats-control input {
    flex: 1;
}

.position-control label, .slats-control label, .room-position-control label, .room-slats-control label {
    min-width: 65px;
}

input[type="range"] {
    width: 100%;
}

#log-window {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 10px;
    border-radius: 8px;
    font-family: monospace;
    font-size: 0.8rem;
    height: 150px;
    overflow-y: auto;
    margin-top: 10px;
}

.log-entry { margin-bottom: 4px; }
.log-error { color: #e74c3c; }
.log-time { color: #bdc3c7; margin-right: 5px; }

.room-container {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #ddd;
}

.room-card {
    border-left: 5px solid var(--accent-color);
}

.room-position-control {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.room-position-control input {
    flex: 1;
}

.hidden { display: none; }
.loader { text-align: center; padding: 40px; font-style: italic; }

.scenario-container, .floor-container {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #ddd;
}

.scenario-card {
    border-left: 5px solid #9b59b6;
}

.floor-card {
    border-left: 5px solid #2ecc71;
}

.execute-btn {
    background-color: #9b59b6;
    font-size: 1rem;
}