/**
 * Catu Service - Chế Lời Bài Hát
 * CSS Styles phù hợp với Theme Hade
 */

/* ==========================================================================
   CATU SERVICE CONTAINER - THEME COMPATIBLE
   ========================================================================== */

.catu-service-container {
    background: #ffffff;
    border-radius: 0.25rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    padding: 1.5rem;
    margin: 1rem 0;
    border: 1px solid #e9ecef;
}

.catu-service-container h2 {
    margin-top: 0;
    color: #333;
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #0d6efd;
}

.catu-service-status {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-weight: 500;
}

.catu-service-status.healthy {
    background: #d4edda;
    color: #155724;
}

.catu-service-status.unhealthy {
    background: #f8d7da;
    color: #721c24;
}

/* ==========================================================================
   FORM STYLES - BOOTSTRAP COMPATIBLE
   ========================================================================== */

.catu-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.catu-form-group {
    margin-bottom: 1rem;
}

.catu-form-group label {
    font-weight: 600;
    color: #333;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    display: block;
}

.catu-form-group small {
    color: #6c757d;
    font-size: 0.75rem;
    margin-top: 0.25rem;
    display: block;
}

/* ==========================================================================
   INPUT STYLES - BOOTSTRAP FORM CONTROL
   ========================================================================== */

.catu-original-lyrics {
    width: 100%;
    min-height: 120px;
    padding: 0.375rem 0.75rem;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    resize: vertical;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    background: #fff;
    color: #495057;
}

.catu-original-lyrics:focus {
    outline: 0;
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.catu-style-select,
.catu-mode-select {
    display: block;
    width: 100%;
    padding: 0.375rem 2.25rem 0.375rem 0.75rem;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    background: #fff url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m1 6 7 7 7-7'/%3e%3c/svg%3e") no-repeat right 0.75rem center/16px 12px;
    cursor: pointer;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    color: #495057;
}

.catu-style-select:focus,
.catu-mode-select:focus {
    outline: 0;
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.catu-style-description {
    background: #f8f9fa;
    padding: 0.5rem 0.75rem;
    border-radius: 0.25rem;
    font-style: italic;
    color: #6c757d;
    font-size: 0.8125rem;
    min-height: 1.5rem;
    border: 1px solid #e9ecef;
    margin-top: 0.5rem;
}

/* ==========================================================================
   ADVANCED OPTIONS - SIMPLE ACCORDION STYLE
   ========================================================================== */

.catu-advanced-toggle {
    background: none;
    border: none;
    color: #0d6efd;
    cursor: pointer;
    font-size: 0.875rem;
    padding: 0.5rem 0;
    text-decoration: none;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.catu-advanced-toggle:hover {
    color: #0a58ca;
    text-decoration: underline;
}

.catu-advanced-options {
    display: none;
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 0.25rem;
    border: 1px solid #e9ecef;
    margin-top: 0.5rem;
}

.catu-advanced-options .catu-form-group {
    margin-bottom: 1rem;
}

.catu-advanced-options .catu-form-group:last-child {
    margin-bottom: 0;
}

.catu-checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.catu-checkbox-group input[type="checkbox"] {
    width: 1.125rem;
    height: 1.125rem;
    cursor: pointer;
}

.catu-pattern-input {
    width: 100%;
    padding: 0.375rem 0.75rem;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.8125rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    background: #fff;
    color: #495057;
}

.catu-pattern-input:focus {
    outline: 0;
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* ==========================================================================
   BUTTONS - BOOTSTRAP BUTTON STYLE
   ========================================================================== */

.catu-generate-btn {
    background-color: #0d6efd;
    border: 1px solid #0d6efd;
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    font-size: 1rem;
    font-weight: 400;
    cursor: pointer;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    text-align: center;
    min-height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.catu-generate-btn:hover:not(:disabled) {
    background-color: #0b5ed7;
    border-color: #0a58ca;
    color: #fff;
}

.catu-generate-btn:focus {
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.catu-generate-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    pointer-events: none;
}

.catu-copy-btn {
    background-color: #28a745;
    border: 1px solid #28a745;
    color: #fff;
    padding: 0.375rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

.catu-copy-btn:hover {
    background-color: #218838;
    border-color: #1e7e34;
}

.catu-copy-btn:focus {
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(40, 167, 69, 0.25);
}

.catu-auto-fill-btn {
    background-color: #17a2b8;
    border: 1px solid #17a2b8;
    color: #fff;
    padding: 0.375rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
    cursor: pointer;
    margin-bottom: 0.5rem;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

.catu-auto-fill-btn:hover {
    background-color: #138496;
    border-color: #117a8b;
}

/* ==========================================================================
   LOADING STATE - SIMPLE SPINNER
   ========================================================================== */

.catu-loading {
    display: none;
    text-align: center;
    padding: 1.25rem;
    color: #6c757d;
}

.catu-loading::before {
    content: "";
    display: inline-block;
    width: 1.25rem;
    height: 1.25rem;
    border: 0.25rem solid #f8f9fa;
    border-top: 0.25rem solid #0d6efd;
    border-radius: 50%;
    animation: catu-spin 1s linear infinite;
    margin-right: 0.5rem;
}

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

/* ==========================================================================
   RESULT DISPLAY - CLEAN CARD STYLE
   ========================================================================== */

.catu-result {
    display: none;
    background: #fff;
    border: 1px solid #dee2e6;
    border-radius: 0.25rem;
    padding: 1.5rem;
    margin-top: 1.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.catu-result h3 {
    margin: 0 0 1rem 0;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 1.25rem;
    font-weight: 600;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #dee2e6;
}

.catu-result h3::before {
    content: "✨";
    margin-right: 0.5rem;
    font-size: 1.25rem;
}

.catu-comparison {
    display: grid;
    grid-template-columns: 1fr 3rem 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: start;
}

.catu-comparison-original,
.catu-comparison-generated {
    background: #f8f9fa;
    border-radius: 0.25rem;
    padding: 1rem;
    border: 1px solid #e9ecef;
}

.catu-comparison-original h4,
.catu-comparison-generated h4 {
    margin: 0 0 0.75rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: #333;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.catu-comparison-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 3rem;
    background-color: #0d6efd;
    color: white;
    border-radius: 50%;
    width: 3rem;
    font-size: 1.25rem;
    font-weight: bold;
    margin: auto;
    align-self: center;
}

.catu-original-display,
.catu-new-lyrics {
    background: #fff;
    padding: 0.75rem;
    border-radius: 0.25rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.8125rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
    border: 1px solid #dee2e6;
    max-height: 20rem;
    overflow-y: auto;
    color: #495057;
}

.catu-metadata {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 0.25rem;
    border: 1px solid #e9ecef;
}

.catu-metadata small {
    color: #6c757d;
    font-size: 0.8125rem;
    line-height: 1.5;
}

.catu-metadata strong {
    color: #495057;
    font-weight: 600;
}

/* ==========================================================================
   ERROR DISPLAY - BOOTSTRAP ALERT STYLE
   ========================================================================== */

.catu-error {
    display: none;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 0.25rem;
    padding: 0.75rem 1.25rem;
    margin-top: 1rem;
    color: #721c24;
    font-size: 0.875rem;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

@media (max-width: 768px) {
    .catu-service-container {
        padding: 1rem;
        margin: 0.5rem 0;
    }

    .catu-service-container h2 {
        font-size: 1.25rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .catu-original-lyrics {
        font-size: 1rem; /* Prevent zoom on iOS */
        min-height: 6rem;
    }

    .catu-generate-btn {
        padding: 0.75rem 1.25rem;
        font-size: 1.125rem;
    }

    .catu-result {
        padding: 1rem;
        margin-top: 1rem;
    }

    .catu-result h3 {
        font-size: 1.125rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
        text-align: left;
    }

    .catu-comparison {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .catu-comparison-arrow {
        width: 3rem;
        height: 3rem;
        font-size: 1.125rem;
        transform: rotate(90deg);
        justify-self: center;
        margin: 0.5rem 0;
    }

    .catu-comparison-original,
    .catu-comparison-generated {
        padding: 0.75rem;
    }

    .catu-original-display,
    .catu-new-lyrics {
        font-size: 0.75rem;
        padding: 0.75rem;
        max-height: 15rem;
    }

    .catu-copy-btn {
        width: 100%;
        justify-content: center;
        margin-top: 0.5rem;
    }

    .catu-form {
        gap: 0.75rem;
    }

    .catu-advanced-options {
        padding: 0.75rem;
    }

    .catu-metadata {
        padding: 0.75rem;
    }
}

@media (max-width: 480px) {
    .catu-service-container {
        padding: 0.75rem;
        margin: 0.25rem 0;
    }

    .catu-service-container h2 {
        font-size: 1.125rem;
    }

    .catu-generate-btn {
        padding: 0.625rem 1rem;
        font-size: 1rem;
    }

    .catu-result {
        padding: 0.75rem;
    }

    .catu-result h3 {
        font-size: 1rem;
    }

    .catu-comparison-original,
    .catu-comparison-generated {
        padding: 0.5rem;
    }

    .catu-comparison-original h4,
    .catu-comparison-generated h4 {
        font-size: 0.875rem;
    }

    .catu-original-display,
    .catu-new-lyrics {
        font-size: 0.6875rem;
        padding: 0.5rem;
        max-height: 12rem;
    }

    .catu-comparison-arrow {
        width: 2.5rem;
        height: 2.5rem;
        font-size: 1rem;
    }
}

/* ==========================================================================
   ACCESSIBILITY ENHANCEMENTS
   ========================================================================== */

.catu-form-group label {
    cursor: pointer;
}

.catu-original-lyrics:focus,
.catu-style-select:focus,
.catu-mode-select:focus,
.catu-pattern-input:focus {
    outline: 0;
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.catu-generate-btn:focus,
.catu-copy-btn:focus,
.catu-auto-fill-btn:focus {
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}