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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: #0d1117;
    color: #c9d1d9;
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

header h1 a {
    color: #58a6ff;
    text-decoration: none;
    font-size: 1.5rem;
}

header h1 a:hover {
    text-decoration: underline;
}

.subtitle {
    color: #8b949e;
    font-size: 0.9rem;
}

.paste-info {
    display: flex;
    gap: 0.5rem;
}

.badge {
    background: #21262d;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: #8b949e;
}

.badge.expires {
    background: #3d1f1f;
    color: #f85149;
}

.paste-form {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 1.5rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    flex: 1;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #8b949e;
    font-size: 0.9rem;
}

select {
    width: 100%;
    padding: 0.5rem;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    color: #c9d1d9;
    font-size: 0.9rem;
    cursor: pointer;
}

select:focus {
    outline: none;
    border-color: #58a6ff;
}

textarea {
    width: 100%;
    min-height: 400px;
    padding: 1rem;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    color: #c9d1d9;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    resize: vertical;
}

textarea:focus {
    outline: none;
    border-color: #58a6ff;
}

textarea::placeholder {
    color: #484f58;
}

.btn {
    background: #238636;
    color: #ffffff;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s;
}

.btn:hover {
    background: #2ea043;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-secondary {
    background: #21262d;
    color: #c9d1d9;
    text-decoration: none;
    display: inline-block;
}

.btn-secondary:hover {
    background: #30363d;
}

.paste-actions {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.paste-view {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    overflow: hidden;
}

.paste-view pre {
    margin: 0;
    padding: 1rem;
    overflow-x: auto;
}

.paste-view code {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

footer {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #21262d;
    color: #8b949e;
    font-size: 0.85rem;
}

footer code {
    background: #21262d;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.8rem;
}

@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }

    .form-row {
        flex-direction: column;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
    }
}