* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
}

.container {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
    border-radius: 20px;
    padding: 2.5rem 3rem;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

h1 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
}

.time {
    font-size: 3rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    background: rgba(0, 0, 0, 0.35);
    margin-bottom: 2rem;
    letter-spacing: 2px;
    transition: box-shadow 0.3s;
}

.time.active {
    box-shadow: 0 0 25px rgba(0, 255, 200, 0.8);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

.button-container {
    display: flex;
    gap: 1.2rem;
}

button {
    min-width: 140px;
    padding: 0.9rem 1.8rem;
    font-size: 1.2rem;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    color: white;
    transition: all 0.2s ease;
}

button:active {
    transform: scale(0.95);
}

.start {
    background: linear-gradient(135deg, #00c6ff, #0072ff);
}

.reset {
    background: linear-gradient(135deg, #ff6a88, #ff99ac);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}