:root {
    --aitth-primary: #3498db;
    --aitth-primary-hover: #2980b9;
    --aitth-secondary: #ecf0f1;
    --aitth-secondary-hover: #bdc3c7;
    --aitth-text: #333333;
    --aitth-text-light: #7f8c8d;
    --aitth-border: #e0e0e0;
    --aitth-bg: #f9f9f9;
    --aitth-card-bg: #ffffff;
    --aitth-radius: 8px;
    --aitth-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.aitth-wrapper {
    font-family: var(--aitth-font);
    color: var(--aitth-text);
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
    box-sizing: border-box;
}

.aitth-wrapper * {
    box-sizing: border-box;
}

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

.aitth-header h2 {
    margin: 0 0 10px 0;
    font-size: 24px;
    font-weight: 600;
}

.aitth-header p {
    margin: 0;
    color: var(--aitth-text-light);
}

.aitth-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .aitth-grid {
        grid-template-columns: 1fr;
    }
}

.aitth-card {
    background: var(--aitth-card-bg);
    border: 1px solid var(--aitth-border);
    border-radius: var(--aitth-radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

.aitth-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.aitth-card-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 500;
}

.aitth-controls {
    display: flex;
    gap: 10px;
}

.aitth-select {
    padding: 6px 10px;
    border: 1px solid var(--aitth-border);
    border-radius: 4px;
    font-size: 14px;
    background: var(--aitth-bg);
}

textarea#aitth-input-text,
textarea#aitth-output-text {
    width: 100%;
    min-height: 250px;
    padding: 15px;
    border: 1px solid var(--aitth-border);
    border-radius: var(--aitth-radius);
    font-family: inherit;
    font-size: 15px;
    line-height: 1.6;
    resize: vertical;
    margin-bottom: 15px;
    flex-grow: 1;
    transition: border-color 0.3s;
}

textarea#aitth-input-text:focus,
textarea#aitth-output-text:focus {
    outline: none;
    border-color: var(--aitth-primary);
}

.aitth-output-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.aitth-toast {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    background: #2ecc71;
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    transition: opacity 0.3s;
    z-index: 10;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.aitth-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--aitth-text-light);
    margin-bottom: 15px;
}

.aitth-btn-group, .aitth-output-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Buttons */
.aitth-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.aitth-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.aitth-btn-primary {
    background: var(--aitth-primary);
    color: #fff;
    width: 100%;
    font-size: 16px;
    padding: 12px;
}

.aitth-btn-primary:hover:not(:disabled) {
    background: var(--aitth-primary-hover);
}

.aitth-btn-secondary {
    background: var(--aitth-secondary);
    color: var(--aitth-text);
}

.aitth-btn-secondary:hover:not(:disabled) {
    background: var(--aitth-secondary-hover);
}

.aitth-btn-text {
    background: transparent;
    color: var(--aitth-text-light);
    padding: 5px 10px;
}

.aitth-btn-text:hover:not(:disabled) {
    color: var(--aitth-text);
    text-decoration: underline;
}

.aitth-loader {
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top: 2px solid #fff;
    width: 16px;
    height: 16px;
    animation: aitth-spin 1s linear infinite;
    margin-left: 10px;
}

@keyframes aitth-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.aitth-disclaimer {
    margin-top: 20px;
    font-size: 12px;
    color: var(--aitth-text-light);
    text-align: center;
}