:root {
    --white: white;
    --black: black;
    --light-grey: #ddd;
    --grey: #666;
    --bg-color: #f5f5f5;
    --text-color: #333;
    --primary-color: #2563eb;
    --toggle-bg: #f0f0f0;
    --link-text: #0066fa;
}

[data-theme="dark"] {
    --white: black;
    --black: white;
    --light-grey: var(--bg);
    --grey: #aaa;
    --bg-color: #1a1a1a;
    --text-color: #f0f0f0;
    --primary-color: #3b82f6;
    --toggle-bg: #333333;
    --link-text: #00faff;
}

.dark-mode-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100;
}

.toggle-label {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--toggle-bg);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.toggle-icon {
    font-size: 20px;
    transition: transform 0.3s;
}

#darkModeToggle {
    display: none;
}

#darkModeToggle:checked + .toggle-label .toggle-icon {
    transform: rotate(180deg);
    position: fixed;
}


body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.container {
    background-color: var(--white);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1, h2, h3, h4 {
    color: var(--black);
    white-space: nowrap;
}

.controls {
    margin-bottom: 20px;
    padding: 15px;
    background-color: var(--bg-color);
    border-radius: 5px;
}

.control-group {
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
}

.control-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.control-group.checkbox label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

#random-template {
    margin: 0;
    width: auto;
}

.control-group input[type="text"],
.control-group input[type="number"] {
    padding: 8px;
    border: 1px solid var(--light-grey);
    border-radius: 4px;
    color: var(--text-color);
    background-color: var(--white);
}

.control-group select {
    width: 100%;
    border: 1px solid var(--light-grey);
    border-radius: 4px;
    margin-bottom: 10px;
    color: var(--text-color);
    background-color: var(--white);
}

button {
    background-color: #3498db;
    color: var(--white);
    border: none;
    padding: 10px 15px;
    margin-right: 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #2980b9;
}

.word-lists {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.word-list {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.word-list textarea {
    padding: 8px;
    border: 1px solid var(--light-grey);
    border-radius: 4px;
    resize: vertical;
    color: var(--text-color);
    background-color: var(--white);
}

.results {
    margin-top: 20px;
}

#output {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

#output div {
    padding: 10px;
    background-color: var(--light-grey);
    border-radius: 4px;
    border-style: solid;
    border-width: 1px;
    word-break: keep-all;
    flex: auto;
}

#output div h3 {
    margin: 0;
}

small {
    color: var(--grey);
    font-size: 0.9em;
}

input[type="file"] {
    margin-top: 5px;
    width: 100%;
}

a {
    color: var(--link-text);
}