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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5e6e8;
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

h1 {
    color: #d84860;
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.8rem;
}

#timer {
    text-align: center;
    padding: 50px;
    background-color: gold;
    border-width: 50px;
    border-radius: 50%;
    font-size: 50px;
    color: aliceblue;
    border: none;
}

#startBtn,
#stopBtn,
#resetBtn {
    display: inline-block;
    width: 100px;
    margin-top: 16px;
    margin-bottom: 0.5px;
    padding: 12px;
    font-size: 16px;
    font-weight: bold;
    font-family: inherit;
    background-color: #d84860;
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.15s, box-shadow 0.2s;
    letter-spacing: 0.5px;
}

#startBtn:hover,
#stopBtn:hover,
#resetBtn:hover {
    background-color: #b03050;
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(216, 72, 96, 0.35);
}