/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #000000;
    color: #ffffff;
    overflow-x: hidden;
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: 100vh;
}

.header {
    text-align: center;
    margin-bottom: 40px;
}

.title {
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1rem;
    color: #ffffff;
    opacity: 0.7;
    font-weight: 300;
    letter-spacing: 0.05em;
}

.main {
    display: flex;
    justify-content: center;
}

.tool-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 30px;
    width: 100%;
    max-width: 800px;
    backdrop-filter: blur(10px);
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tab-btn {
    background: transparent;
    border: none;
    color: #ffffff;
    padding: 12px 24px;
    font-size: 1rem;
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}

.tab-btn:hover {
    opacity: 0.8;
}

.tab-btn.active {
    opacity: 1;
    border-bottom-color: #00aaff;
    color: #00aaff;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: #ffffff;
    opacity: 0.8;
    font-size: 0.9rem;
}

.textarea {
    width: 100%;
    min-height: 150px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #ffffff;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    resize: vertical;
    transition: all 0.3s ease;
}

.textarea:focus {
    outline: none;
    border-color: #00aaff;
    box-shadow: 0 0 10px rgba(0, 170, 255, 0.3);
}

.textarea[readonly] {
    background: rgba(0, 0, 0, 0.5);
    cursor: default;
}

.btn {
    background: linear-gradient(135deg, rgba(0, 170, 255, 0.3), rgba(0, 255, 170, 0.3));
    border: 1px solid rgba(0, 170, 255, 0.5);
    color: #ffffff;
    padding: 12px 30px;
    font-size: 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 20px;
    width: 100%;
}

.btn:hover {
    background: linear-gradient(135deg, rgba(0, 170, 255, 0.5), rgba(0, 255, 170, 0.5));
    border-color: rgba(0, 170, 255, 0.8);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 170, 255, 0.3);
}

.btn-copy {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-copy:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-copy.copied {
    background: rgba(0, 255, 0, 0.2);
    border-color: rgba(0, 255, 0, 0.5);
    color: #00ff00;
}

@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .tool-card {
        padding: 20px;
    }
}