:root {
    --primary-color: #007bff;
    --background-color: #121212;
    --background-color-card: #1e1e1e;
    --background-color-box: #2a2a2a;
    color-scheme: dark;
}

html {
    background-color: var(--background-color);
}

body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: var(--background-color);
}

.container {
    text-align: center;
    background: var(--background-color-card);
    padding: 30px;
    margin: 20px 0;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

input {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-bottom: 10px;
}

button {
    padding: 30px;
    font-size: 5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition-duration: 100ms;
}

button:hover {
    background-color: rgb(from var(--primary-color) r g b / 80%);
}

ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 0;
    padding: 0;
}

li {
    background: var(--background-color-box);
    padding: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

th,
td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--background-color-box);
}

th {
    color: #aaa;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

tr {
    cursor: pointer;
    user-select: none;
    transition-duration: 100ms;
}

tr:hover td {
    background: var(--background-color-box);
}

#countdownContainer {
    font-weight: bold;
}