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

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

body {
    height: 100vh;
    background: linear-gradient(135deg, #0f172a, #020617);
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 100%;
    display: flex;
    justify-content: center;
}

.card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(15px);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    text-align: center;
    width: 540px;
}

h1 {
    color: #38bdf8;
    margin-bottom: 30px;
    font-weight: 600;
}

.time {
    font-size: 48px;
    color: #e5e7eb;
    letter-spacing: 2px;
    margin-bottom: 30px;
}


.time span {
    min-width: 45px;
    display: inline-block;
    width: 50px;
    text-align: center;
}
.ms {
    font-size: 24px;
    color: #94a3b8;
    margin-left: -45px;
}
.dot{
    font-size: 29px;
    color: #94a3b8;
}

.buttons {
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    cursor: pointer;
    color: white;
    transition: 0.3s ease;
}

.start {
    background: #22c55e;
}

.stop {
    background: #3b82f6;
}

.reset {
    background: #ef4444;
}

.btn:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}