:root {
    --primary: #00a8e8;
    --secondary: #007ea7;
    --dark: #003459;
    --light: #f7f9fc;
    --alert: #ff6b6b;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--light);
    color: #333;
}

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

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid #e0e0e0;
    margin-bottom: 30px;
}

.connect-container {
    align-items: center;
    gap: 10px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--dark);
}

.logo span {
    color: var(--primary);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-dot {
    height: 12px;
    width: 12px;
    border-radius: 50%;
}

.status-dot.connected {
    background-color: #4caf50;
}

.status-dot.disconnected {
    background-color: #f44336;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.card {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.main-card {
    grid-column: span 2;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-title {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
}

.card-value {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 10px;
}

.card-unit {
    font-size: 14px;
    color: #666;
}

.water-flow {
    display: flex;
    align-items: center;
    gap: 10px;
}

.water-icon {
    font-size: 24px;
    color: var(--primary);
}

.alert-card-container {
    z-index: 1000;
    background-color: #0000003a;
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
}

.alert-card {
    background-color: #fff8e1;
    border-left: 4px solid var(--alert);
    position: fixed;
    width: 30%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.chart-container {
    grid-column: span 4;
    grid-template-columns: repeat(3, 1fr);
    display: grid;
    gap: 20px;
}

.graph-container {
    grid-column: span 4;
    height: 500px;
    background: white;
    border-radius: 10px;
    padding-left: 20px;
    padding-right: 20px;
    padding-bottom: 40px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.stats-container {
    grid-column: span 4;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px;
}

.stat-icon {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 15px;
}

.stat-value {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    color: #666;
}

.impact-stat {
    background-color: var(--dark);
    color: white;
    padding: 20px;
    border-radius: 10px;
    grid-column: span 4;
}

.impact-stat h3 {
    margin-top: 0;
    color: white;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
}

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 50px;
    color: #666;
    font-size: 14px;
    border-top: 1px solid #e0e0e0;
}