@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #5e60ce;
    --secondary-color: #64dfdf;
    --accent-color: #6930c3;
    --background-color: #10002b;
    --card-background: rgba(30, 10, 60, 0.8);
    --text-color: #ffffff;
    --text-secondary: #b5b5b5;
    --steps-color: #5390d9;
    --calories-color: #ff5e78;
    --distance-color: #48bfe3;
    --glow-strength: 0px 0px 15px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(105, 48, 195, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(72, 191, 227, 0.2) 0%, transparent 40%);
}

/* Header and Navigation */
header {
    background-color: rgba(20, 0, 35, 0.9);
    padding: 15px 40px;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(100, 223, 223, 0.2);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo i {
    color: var(--secondary-color);
    font-size: 24px;
    filter: drop-shadow(var(--glow-strength) var(--secondary-color));
}

.logo h1 {
    color: var(--text-color);
    font-weight: 600;
    font-size: 24px;
    letter-spacing: 1px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

nav ul li a:hover {
    color: var(--text-color);
}

nav ul li a.active {
    color: var(--secondary-color);
}

nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--secondary-color);
    box-shadow: var(--glow-strength) var(--secondary-color);
}

/* Main Content */
main {
    flex: 1;
    padding: 40px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.user-greeting {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.user-info h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 5px;
}

.user-info p {
    color: var(--text-secondary);
    font-size: 16px;
}

.date-display p {
    font-size: 16px;
    color: var(--secondary-color);
    font-weight: 500;
}

/* Metrics Cards */
.metrics-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.metric-card {
    background-color: var(--card-background);
    border-radius: 15px;
    padding: 25px;
    display: flex;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-5px);
}

#steps-card {
    box-shadow: 0 5px 15px rgba(83, 144, 217, 0.2);
}

#steps-card:hover {
    box-shadow: 0 8px 20px rgba(83, 144, 217, 0.3);
}

#calories-card {
    box-shadow: 0 5px 15px rgba(255, 94, 120, 0.2);
}

#calories-card:hover {
    box-shadow: 0 8px 20px rgba(255, 94, 120, 0.3);
}

#distance-card {
    box-shadow: 0 5px 15px rgba(72, 191, 227, 0.2);
}

#distance-card:hover {
    box-shadow: 0 8px 20px rgba(72, 191, 227, 0.3);
}

.metric-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
}

#steps-card .metric-icon {
    background-color: rgba(83, 144, 217, 0.2);
    color: var(--steps-color);
}

#steps-card .metric-icon i {
    filter: drop-shadow(var(--glow-strength) var(--steps-color));
}

#calories-card .metric-icon {
    background-color: rgba(255, 94, 120, 0.2);
    color: var(--calories-color);
}

#calories-card .metric-icon i {
    filter: drop-shadow(var(--glow-strength) var(--calories-color));
}

#distance-card .metric-icon {
    background-color: rgba(72, 191, 227, 0.2);
    color: var(--distance-color);
}

#distance-card .metric-icon i {
    filter: drop-shadow(var(--glow-strength) var(--distance-color));
}

.metric-icon i {
    font-size: 22px;
}

.metric-info {
    flex: 1;
}

.metric-info h3 {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.metric-value {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 10px;
    display: inline-block;
}

.unit {
    font-size: 16px;
    color: var(--text-secondary);
    margin-left: 5px;
    display: inline-block;
}

.progress-container {
    height: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 10px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

#steps-card .progress-bar {
    background-color: var(--steps-color);
    box-shadow: 0 0 8px var(--steps-color);
    width: 82.4%;
}

#calories-card .progress-bar {
    background-color: var(--calories-color);
    box-shadow: 0 0 8px var(--calories-color);
    width: 75.9%;
}

#distance-card .progress-bar {
    background-color: var(--distance-color);
    box-shadow: 0 0 8px var(--distance-color);
    width: 71.3%;
}

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

/* Activity Summary */
.activity-summary {
    background-color: var(--card-background);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.activity-summary h2 {
    font-size: 20px;
    margin-bottom: 20px;
}

.chart-container {
    height: 300px;
    position: relative;
}

/* Controls Section */
.controls-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.control-buttons {
    display: flex;
    gap: 15px;
    background-color: var(--card-background);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    align-items: center;
    justify-content: center;
}

.control-btn {
    background-color: rgba(30, 10, 80, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.control-btn:hover {
    transform: translateY(-2px);
}

#start-activity {
    background-color: rgba(72, 191, 227, 0.2);
    color: var(--secondary-color);
}

#start-activity:hover {
    background-color: rgba(72, 191, 227, 0.3);
    box-shadow: 0 0 15px rgba(72, 191, 227, 0.5);
}

#pause-activity {
    background-color: rgba(255, 214, 10, 0.2);
    color: #ffd60a;
}

#pause-activity:hover {
    background-color: rgba(255, 214, 10, 0.3);
    box-shadow: 0 0 15px rgba(255, 214, 10, 0.5);
}

#stop-activity {
    background-color: rgba(255, 94, 120, 0.2);
    color: var(--calories-color);
}

#stop-activity:hover {
    background-color: rgba(255, 94, 120, 0.3);
    box-shadow: 0 0 15px rgba(255, 94, 120, 0.5);
}

/* Settings Card */
.settings-container {
    background-color: var(--card-background);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.settings-card h3 {
    font-size: 20px;
    margin-bottom: 20px;
}

.settings-item {
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.input-with-buttons {
    display: flex;
    align-items: center;
}

.input-with-buttons input {
    flex: 1;
    background-color: rgba(30, 10, 80, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    padding: 10px;
    border-radius: 8px;
    font-size: 16px;
    outline: none;
    text-align: center;
}

.input-with-buttons input:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(100, 223, 223, 0.2);
}

.increment-btn, .decrement-btn {
    background-color: rgba(94, 96, 206, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.increment-btn:hover, .decrement-btn:hover {
    background-color: rgba(94, 96, 206, 0.3);
    box-shadow: 0 0 15px rgba(94, 96, 206, 0.5);
}

.decrement-btn {
    margin-right: 8px;
}

.increment-btn {
    margin-left: 8px;
}

.save-btn {
    background-color: rgba(105, 48, 195, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--accent-color);
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    width: 100%;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.save-btn:hover {
    background-color: rgba(105, 48, 195, 0.3);
    box-shadow: 0 0 15px rgba(105, 48, 195, 0.5);
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    background-color: rgba(20, 0, 35, 0.9);
    color: var(--text-secondary);
    font-size: 14px;
    border-top: 1px solid rgba(100, 223, 223, 0.2);
}

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 15px 20px;
    }
    
    main {
        padding: 20px;
    }
    
    nav ul {
        gap: 15px;
    }
    
    .metrics-container {
        grid-template-columns: 1fr;
    }
    
    .control-buttons {
        flex-direction: column;
    }
    
    .control-btn {
        width: 100%;
    }
}

@media (max-width: 500px) {
    .logo h1 {
        font-size: 20px;
    }
    
    nav ul li a {
        font-size: 14px;
    }
    
    .metric-value {
        font-size: 28px;
    }
}