:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent: #bb86fc;
    --solar: #f9d71c;
    --battery: #03dac6;
    --grid: #cf6679;
}

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

#app {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Auth Screens */
.auth-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 80vh;
}

input {
    background: var(--card-bg);
    border: 1px solid #333;
    color: var(--text-primary);
    padding: 10px;
    margin: 10px 0;
    border-radius: 4px;
    font-size: 16px;
    width: 250px;
}

button {
    background: var(--accent);
    color: #000;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
    font-weight: bold;
}

button:disabled {
    opacity: 0.5;
}

/* Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}

.card h3 {
    margin: 0 0 10px 0;
    color: var(--text-secondary);
    font-size: 14px;
    text-transform: uppercase;
}

.value {
    font-size: 24px;
    font-weight: bold;
}

.unit {
    font-size: 14px;
    color: var(--text-secondary);
}

.chart-container {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    height: 300px;
    margin-bottom: 20px;
}

.hidden {
    display: none !important;
}

.error-msg {
    color: #cf6679;
    margin-top: 10px;
}

.link-btn {
    background: none;
    color: var(--accent);
    text-decoration: underline;
    margin-top: 10px;
    font-size: 14px;
}

/* Status Bar */
.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #cf6679; /* Default red */
    transition: background-color 0.3s;
}

.status-connected {
    background-color: #03dac6; /* Green */
    box-shadow: 0 0 5px #03dac6;
}

.status-disconnected {
    background-color: #cf6679; /* Red */
}