:root {
    --bg-primary: #1e1e1e;
    --bg-secondary: #252526;
    --bg-tertiary: #2d2d30;
    --text-primary: #d4d4d4;
    --text-secondary: #808080;
    --accent-blue: #569cd6;
    --accent-green: #4ec9b0;
    --accent-orange: #ce9178;
    --accent-purple: #7b1c9d;
    --border-color: #3c3c3c;
}

body, html {
    margin: 0;
    padding: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
}

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

.header {
    text-align: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 30px;
}

.header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.header p {
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.converter-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 20px;
    align-items: start;
}

@media (max-width: 900px) {
    .converter-container {
        grid-template-columns: 1fr;
    }
    .controls-center {
        order: -1;
        flex-direction: row !important;
        justify-content: center;
        gap: 10px !important;
    }
}

.panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.panel-header {
    background: var(--bg-tertiary);
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-header h4 {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.panel-body {
    padding: 0;
}

.code-textarea {
    width: 100%;
    min-height: 400px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: none;
    padding: 16px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
    resize: vertical;
    box-sizing: border-box;
}

.code-textarea:focus {
    outline: none;
    background: var(--bg-primary);
}

.code-textarea::placeholder {
    color: var(--text-secondary);
}

.output-pre {
    width: 100%;
    height: 400px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: none;
    padding: 16px;
    margin: 0;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
    overflow: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    box-sizing: border-box;
}

.controls-center {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 20px 10px;
}

.btn-convert {
    padding: 12px 20px;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    min-width: 140px;
}

.btn-auto {
    background: var(--accent-purple);
    color: white;
}

.btn-auto:hover {
    background: #a02edf;
    transform: scale(1.02);
}

.btn-togecko {
    background: var(--accent-blue);
    color: white;
}

.btn-togecko:hover {
    background: #6bade8;
    transform: scale(1.02);
}

.btn-toasm {
    background: var(--accent-green);
    color: white;
}

.btn-toasm:hover {
    background: #5fd9c0;
    transform: scale(1.02);
}

.btn-clear {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-clear:hover {
    background: var(--border-color);
}

.btn-copy {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 4px 8px;
    font-size: 0.75rem;
    cursor: pointer;
}

.btn-copy:hover {
    color: var(--text-primary);
}

.arrow-icon {
    font-size: 1.2rem;
}

.info-section {
    margin-top: 40px;
    padding: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.info-section h4 {
    color: var(--accent-blue);
    margin-bottom: 15px;
}

.info-section ul {
    color: var(--text-secondary);
    padding-left: 20px;
}

.info-section li {
    margin-bottom: 8px;
}

.info-section code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.85rem;
    color: var(--accent-orange);
}

.example-codes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.example-code {
    background: var(--bg-tertiary);
    padding: 12px;
    border-radius: 6px;
    font-family: 'Consolas', monospace;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.2s;
}

.example-code:hover {
    background: var(--border-color);
}

.example-label {
    color: var(--accent-green);
    font-size: 11px;
    margin-bottom: 5px;
    font-family: 'Segoe UI', sans-serif;
}

.status-indicator {
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.footer-links {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.footer-links a {
    color: var(--accent-blue);
    text-decoration: none;
    margin: 0 10px;
}

.footer-links a:hover {
    text-decoration: underline;
}