style.css

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    display: flex;
    flex-direction: column;
    height: 100vh;
    background-color: #f5f5f5;
    color: #333;
}

.app-header {
    padding: 1em;
    background-color: #007aff;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.app-header h1 {
    font-size: 1.2em;
    font-weight: bold;
}

/* Material-style button */
.material-btn {
    padding: 0.5em 1em;
    border: none;
    border-radius: 8px;
    background-color: #007aff;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: box-shadow 0.2s;
}

.material-btn:hover {
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* Active button state for Start Tracking */
.material-btn.active {
    background-color: #34c759;
    /* iOS green for active state */
}

/* Ensure the map fills the viewport height */
main {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

#map-section {
    flex-grow: 1;
    position: relative;
}

#map {
    width: 100%;
    height: 100%;
    background-color: #e0e0e0;
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.15);
}

/* Compass styling */
#compass {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #007aff;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transform: rotate(0deg);
    transition: transform 0.1s ease-out;
    z-index: 1000;
}

#stats {
    display: flex;
    justify-content: space-around;
    padding: 1em;
    background-color: #ffffff;
    border-top: 1px solid #ddd;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.stat-container {
    text-align: center;
}

.stat-label {
    font-size: 0.9em;
    color: #777;
}

.stat-value {
    font-size: 1.4em;
    font-weight: bold;
    color: #007aff;
}

#graphs {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1em;
    background-color: #ffffff;
    border-top: 1px solid #ddd;
}

.chart-container {
    width: 100%;
    max-width: 600px;
    margin: 10px 0;
}