/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
}

/* Container styles */
.container {
    background: rgba(255, 255, 255, 0.95);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 500px;
    width: 90%;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Typography */
h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

/* Button styles */
.btn {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border: none;
    padding: 12px 24px;
    margin: 0.5rem;
    border-radius: 25px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.btn:active {
    transform: translateY(0);
}

/* Time display */
.time-display {
    margin-top: 2rem;
    padding: 1rem;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    color: #667eea;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.6s both;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Color change animation */
.color-change {
    animation: colorPulse 0.5s ease-in-out;
}

@keyframes colorPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Responsive design */
@media (max-width: 600px) {
    .container {
        padding: 2rem;
        margin: 1rem;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
    }
}