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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(to right, #e0f7fa, #ffffff);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timer-wrapper {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.card {
    background: #ffffff;
    padding: 30px 25px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.card header h2 {
    font-size: 1.8rem;
    margin-bottom: 8px;
    color: #00796b;
}

.card header p {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 20px;
}

.time-inputs {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 25px;
}

.input-group {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.input-group label {
    font-size: 0.9rem;
    margin-bottom: 5px;
    color: #333;
}

.input-group input {
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    outline-color: #009688;
}

.time-inputs button {
    padding: 12px;
    font-size: 1rem;
    border: none;
    background-color: #009688;
    color: white;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.time-inputs button:hover {
    background-color: #00796b;
}

.timer-display {
    font-size: 3rem;
    font-weight: bold;
    color: #333;
    margin-top: 10px;
}