/* ==========================================================================
   Case Converter Pro – Stylesheet
   ========================================================================== */

/* ---------- Base Wrapper ---------- */
.ccv-tool {
    --ccv-color-primary: #2563eb;
    --ccv-color-primary-hover: #1d4ed8;
    --ccv-color-bg: #ffffff;
    --ccv-color-surface: #f8fafc;
    --ccv-color-border: #e2e8f0;
    --ccv-color-text: #0f172a;
    --ccv-color-text-secondary: #475569;
    --ccv-radius: 0.75rem;
    --ccv-radius-sm: 0.5rem;
    --ccv-spacing-xs: 0.5rem;
    --ccv-spacing-sm: 0.75rem;
    --ccv-spacing-md: 1.25rem;
    --ccv-spacing-lg: 2rem;
    --ccv-spacing-xl: 3rem;
    --ccv-transition: 0.2s ease;

    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    color: var(--ccv-color-text);
    max-width: 960px;
    margin: 0 auto;
    padding: var(--ccv-spacing-lg);
    background-color: var(--ccv-color-bg);
    border-radius: var(--ccv-radius);
    box-shadow: 0 10px 30px rgba(0,0,0,0.04);
}

/* ---------- Typography ---------- */
.ccv-tool .ccv-title {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 var(--ccv-spacing-xs);
    color: var(--ccv-color-text);
}

.ccv-tool .ccv-description {
    font-size: 1.1rem;
    color: var(--ccv-color-text-secondary);
    margin: 0 0 var(--ccv-spacing-lg);
}

.ccv-tool .ccv-section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 var(--ccv-spacing-sm);
}

.ccv-tool .ccv-card-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    color: var(--ccv-color-text-secondary);
    margin: 0 0 var(--ccv-spacing-xs);
}

/* ---------- Layout & Sections ---------- */
.ccv-tool .ccv-main {
    display: flex;
    flex-direction: column;
    gap: var(--ccv-spacing-lg);
}

.ccv-tool .ccv-section {
    background: var(--ccv-color-surface);
    border: 1px solid var(--ccv-color-border);
    border-radius: var(--ccv-radius);
    padding: var(--ccv-spacing-md);
}

/* ---------- Textareas ---------- */
.ccv-tool .ccv-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--ccv-spacing-xs);
    font-size: 0.9rem;
    color: var(--ccv-color-text-secondary);
}

.ccv-tool .ccv-textarea {
    width: 100%;
    min-height: 120px;
    padding: var(--ccv-spacing-sm);
    font-size: 0.95rem;
    font-family: inherit;
    border: 1px solid var(--ccv-color-border);
    border-radius: var(--ccv-radius-sm);
    background: #fff;
    resize: vertical;
    transition: border-color var(--ccv-transition);
    line-height: 1.6;
}

.ccv-tool .ccv-textarea:focus {
    outline: 2px solid var(--ccv-color-primary);
    outline-offset: 2px;
    border-color: var(--ccv-color-primary);
}

.ccv-tool .ccv-textarea-output {
    background-color: #f1f5f9;
    cursor: default;
}

/* ---------- Buttons ---------- */
.ccv-tool .ccv-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5em 1em;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--ccv-radius-sm);
    cursor: pointer;
    transition: background-color var(--ccv-transition), border-color var(--ccv-transition), opacity var(--ccv-transition);
    background-color: #fff;
    color: var(--ccv-color-text);
    border-color: var(--ccv-color-border);
    min-width: 80px;
}

.ccv-tool .ccv-button:hover {
    background-color: #f1f5f9;
}

.ccv-tool .ccv-button:focus-visible {
    outline: 2px solid var(--ccv-color-primary);
    outline-offset: 2px;
}

.ccv-tool .ccv-button-primary {
    background-color: var(--ccv-color-primary);
    color: #fff;
    border-color: var(--ccv-color-primary);
}

.ccv-tool .ccv-button-primary:hover {
    background-color: var(--ccv-color-primary-hover);
}

.ccv-tool .ccv-button-secondary {
    background-color: transparent;
}

/* Active conversion button */
.ccv-tool .ccv-conversion-btn[aria-pressed="true"] {
    background-color: var(--ccv-color-primary);
    color: #fff;
    border-color: var(--ccv-color-primary);
}

/* ---------- Actions Groups ---------- */
.ccv-tool .ccv-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ccv-spacing-xs);
    margin-top: var(--ccv-spacing-sm);
}

/* ---------- Conversion Grid & Cards ---------- */
.ccv-tool .ccv-conversion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--ccv-spacing-md);
}

.ccv-tool .ccv-card {
    background: var(--ccv-color-bg);
    border: 1px solid var(--ccv-color-border);
    border-radius: var(--ccv-radius);
    padding: var(--ccv-spacing-sm) var(--ccv-spacing-md);
}

.ccv-tool .ccv-button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

/* ---------- Stats Bar ---------- */
.ccv-tool .ccv-stats-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ccv-spacing-md);
    padding: var(--ccv-spacing-sm) 0;
    font-size: 0.875rem;
    color: var(--ccv-color-text-secondary);
    border-top: 1px solid var(--ccv-color-border);
    border-bottom: 1px solid var(--ccv-color-border);
}

.ccv-tool .ccv-stat strong {
    font-weight: 600;
    color: var(--ccv-color-text);
}

/* ---------- FAQ ---------- */
.ccv-tool .ccv-faq {
    margin-top: var(--ccv-spacing-xl);
    padding-top: var(--ccv-spacing-lg);
    border-top: 2px solid var(--ccv-color-border);
}

.ccv-tool .ccv-faq-item {
    margin-bottom: var(--ccv-spacing-md);
}

.ccv-tool .ccv-faq-question {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 var(--ccv-spacing-xs);
}

.ccv-tool .ccv-faq-answer p {
    margin: 0;
    color: var(--ccv-color-text-secondary);
}

/* ---------- Related Tools ---------- */
.ccv-tool .ccv-related {
    margin-top: var(--ccv-spacing-xl);
    padding-top: var(--ccv-spacing-lg);
    border-top: 2px solid var(--ccv-color-border);
}

.ccv-tool .ccv-related-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--ccv-spacing-sm);
}

.ccv-tool .ccv-related-list a {
    color: var(--ccv-color-primary);
    text-decoration: none;
    font-weight: 500;
}

.ccv-tool .ccv-related-list a:hover {
    text-decoration: underline;
}

/* ---------- Copy Feedback ---------- */
.ccv-tool .ccv-copy-feedback {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: #0f172a;
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    z-index: 9999;
    animation: fadeInOut 2s forwards;
}

@keyframes fadeInOut {
    0% { opacity: 0; transform: translateY(5px); }
    10% { opacity: 1; transform: translateY(0); }
    80% { opacity: 1; }
    100% { opacity: 0; }
}

/* ---------- Screen Reader Only ---------- */
.ccv-tool .ccv-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
    .ccv-tool {
        padding: var(--ccv-spacing-md);
    }

    .ccv-tool .ccv-conversion-grid {
        grid-template-columns: 1fr;
    }

    .ccv-tool .ccv-stats-bar {
        flex-direction: column;
        gap: var(--ccv-spacing-xs);
    }
}