/* Dark hacker theme styling */
:root {
    --main-bg-color: #0E1117;
    --text-color: #00FF41;
    --button-bg: #1E1E1E;
    --button-border: #00FF41;
    --button-hover-bg: #00FF41;
    --button-hover-text: #1E1E1E;
    --input-bg: #1E1E1E;
    --input-border: #00FF41;
    --section-divider: #00FF41;
}

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

body {
    background-color: var(--main-bg-color);
    color: var(--text-color);
    font-family: 'Courier New', monospace;
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

h1, h2, h3, h4, h5 {
    font-family: 'Courier New', monospace;
    color: var(--text-color);
    margin-bottom: 15px;
}

/* Tabs styling */
.tabs {
    margin-top: 20px;
}

.tab-buttons {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--text-color);
}

.tab-buttons button {
    background-color: transparent;
    color: var(--text-color);
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 16px;
    font-family: 'Courier New', monospace;
    transition: all 0.3s;
}

.tab-buttons button.active {
    border-bottom: 3px solid var(--text-color);
    font-weight: bold;
}

.tab-buttons button:hover {
    background-color: rgba(0, 255, 65, 0.1);
}

.tab-content {
    padding: 20px 0;
}

/* Form elements */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

textarea {
    width: 100%;
    padding: 12px;
    background-color: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--input-border);
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    resize: vertical;
    min-height: 100px;
}

button {
    background-color: var(--button-bg);
    color: var(--text-color);
    border: 1px solid var(--button-border);
    border-radius: 4px;
    padding: 8px 16px;
    cursor: pointer;
    font-family: 'Courier New', monospace;
    transition: all 0.3s;
}

button:hover {
    background-color: var(--button-hover-bg);
    color: var(--button-hover-text);
}

/* Emoji grid */
.emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.emoji-button {
    padding: 5px;
    min-width: 60px;
    height: 60px;
    font-size: 1.5rem;
    position: relative;
}

.emoji-button.selected {
    background-color: rgba(0, 255, 65, 0.2);
    border: 2px solid var(--text-color);
}

.emoji-button .tooltip {
    visibility: hidden;
    background-color: var(--button-bg);
    color: var(--text-color);
    text-align: center;
    border-radius: 4px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.emoji-button:hover .tooltip {
    visibility: visible;
    opacity: 1;
}

/* Transform buttons */
.transform-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.transform-button {
    padding: 5px 10px;
    margin: 2px;
    height: auto;
}

/* Copy button */
.copy-button {
    margin-top: 10px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

/* Section dividers */
.section-divider {
    border-top: 1px solid var(--section-divider);
    margin: 30px 0;
}

/* GitHub link */
.github-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 16px;
    border: 1px solid var(--button-border);
    border-radius: 4px;
    transition: all 0.3s;
}

.github-link:hover {
    background-color: var(--button-hover-bg);
    color: var(--button-hover-text);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .emoji-grid {
        grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    }
    
    .emoji-button {
        min-width: 50px;
        height: 50px;
    }
    
    .tab-buttons {
        flex-direction: column;
    }
    
    .tab-buttons button {
        width: 100%;
        text-align: left;
    }
}