/* Text Case Converter
-------------------------------------- */

.tcc-page {
    --tcc-accent: #fdcb6e;
    --tcc-accent-dark: #e4b84f;
    --tcc-accent-text: #946b00;
    --tcc-accent-light: color-mix(in srgb, #fdcb6e 12%, transparent);
    --tcc-border: var(--flex-gray-15, rgba(0, 0, 0, 0.08));
    --tcc-surface: var(--solid-white, #fff);
    --tcc-radius: var(--round-7, 7px);
    --tcc-transition: var(--effect, 0.25s ease);
    position: relative;
    padding: 36px 0 80px;
}

/* Hero
-------------------------------------- */

.tcc-hero {
    max-width: 800px;
    margin: 0 auto;
    padding: 18px 0 28px;
    text-align: center;
}

.tcc-title {
    margin-bottom: 12px;
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.tcc-subtitle {
    max-width: 640px;
    margin: 0 auto;
    font-size: clamp(0.9rem, 1.5vw, 1rem);
    line-height: 1.65;
    color: var(--excerpt-color);
}

/* Card
-------------------------------------- */

.tcc-tool-section {
    max-width: 1080px;
    margin: 0 auto 28px;
}

.tcc-card {
    border: 1px solid #ddd;
    border-radius: 16px;
    background: var(--tcc-surface);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03), 0 6px 24px rgba(0, 0, 0, 0.07);
    padding: 32px;
}

/* ═══════════════════════════════════
   Two-Column Layout
   ═══════════════════════════════════ */

.tcc-layout {
    display: flex;
    gap: 28px;
}

.tcc-layout-left {
    flex: 1;
    min-width: 0;
}

.tcc-layout-right {
    width: 200px;
    flex-shrink: 0;
}

/* ═══════════════════════════════════
   Textarea
   ═══════════════════════════════════ */

.tcc-textarea {
    display: block;
    width: 100%;
    min-height: 380px;
    padding: 16px;
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--headline-fcolor, #222);
    background: var(--tcc-surface);
    border: 1.5px solid var(--tcc-border);
    border-radius: 12px;
    resize: vertical;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.tcc-textarea:focus {
    outline: none;
    border-color: var(--tcc-accent-dark);
    box-shadow: 0 0 0 3px var(--tcc-accent-light);
}

.tcc-textarea::placeholder {
    color: var(--body-fcolor, #999);
    opacity: 0.5;
}

/* ═══════════════════════════════════
   Textarea Footer
   ═══════════════════════════════════ */

.tcc-textarea-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 4px 0;
}

.tcc-char-count {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--excerpt-color, #888);
}

.tcc-textarea-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.tcc-btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    padding: 0;
    color: #666;
    background: #f0eefc;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--tcc-transition);
}

.tcc-btn-icon svg {
    width: 15px;
    height: 15px;
}

.tcc-btn-icon:hover {
    color: var(--tcc-accent-text);
    border-color: var(--tcc-accent-dark);
    background: var(--tcc-accent-light);
}

/* ═══════════════════════════════════
   Case Conversion Buttons
   ═══════════════════════════════════ */

.tcc-convert-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 14px;
}

.tcc-convert-btn {
    padding: 12px 10px;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--headline-fcolor, #333);
    background: #f0eefc;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--tcc-transition);
    line-height: 1;
    text-align: center;
}

.tcc-convert-btn:hover {
    color: #fff;
    background: var(--tcc-accent-text);
}

.tcc-convert-btn:active,
.tcc-convert-btn.tcc-active {
    color: #fff;
    background: var(--tcc-accent-dark);
}

/* Dev format buttons — monospace font */
.tcc-convert-btn-dev {
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.8rem;
}

/* ═══════════════════════════════════
   Stats Sidebar
   ═══════════════════════════════════ */

.tcc-stats {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tcc-stat {
    border: none;
    border-radius: 12px;
    padding: 16px 14px;
    text-align: center;
    background: #f0eefc;
    transition: background 0.2s;
}

.tcc-stat:hover {
    background: #e6e3fa;
}

.tcc-stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--tcc-accent-text);
    line-height: 1.2;
    margin-bottom: 3px;
}

.tcc-stat-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #666;
}

/* ═══════════════════════════════════
   SEO Content
   ═══════════════════════════════════ */

.tcc-seo-content {
    margin-top: 54px;
    padding-top: 36px;
    border-top: 1px solid var(--tcc-border);
}

/* ═══════════════════════════════════
   FAQ Section
   ═══════════════════════════════════ */

.tcc-faq {
    margin-top: 54px;
    padding-top: 36px;
    border-top: 1px solid var(--tcc-border);
}

.tcc-faq-inner {
    padding: 0;
}

.tcc-faq-label {
    display: inline-block;
    margin-bottom: 6px;
    padding: 3px 12px;
    font-family: var(--meta-family);
    font-size: var(--meta-fsize);
    font-weight: var(--meta-b-fweight, 600);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--tcc-accent-text);
    background: var(--tcc-accent-light);
    border-radius: 20px;
}

.tcc-faq-title {
    margin-bottom: 24px;
    font-size: clamp(1.5rem, 2.5vw, 2rem);
}

.tcc-faq-list {
    position: relative;
}

.tcc-faq-item {
    border-bottom: 1px solid var(--tcc-border);
}

.tcc-faq-item:last-child {
    border-bottom: none;
}

.tcc-faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 18px 0;
    text-align: left;
    color: inherit;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    gap: 20px;
    cursor: pointer;
}

.tcc-faq-question:hover,
.tcc-faq-question:focus {
    color: var(--tcc-accent-text);
    background: transparent;
    box-shadow: none;
}

.tcc-faq-question-text {
    font-family: var(--h4-family);
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: var(--h4-fweight, 700);
    line-height: 1.45;
}

.tcc-faq-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    color: var(--tcc-accent-text);
    border: 1px solid var(--tcc-border);
    border-radius: 50%;
    background: var(--tcc-accent-light);
    transition: var(--tcc-transition);
}

.tcc-faq-toggle svg {
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
}

.tcc-faq-item.tcc-faq-open .tcc-faq-toggle svg {
    transform: rotate(180deg);
}

.tcc-faq-answer {
    display: none;
    padding-bottom: 18px;
}

.tcc-faq-item.tcc-faq-open .tcc-faq-answer {
    display: block;
}

.tcc-faq-item:first-child .tcc-faq-answer {
    display: block;
}

.tcc-faq-item:first-child .tcc-faq-toggle svg {
    transform: rotate(180deg);
}

.tcc-faq-item:first-child:not(.tcc-faq-open):not(.tcc-faq-touched) .tcc-faq-answer {
    display: block;
}

.tcc-faq-item:first-child:not(.tcc-faq-open).tcc-faq-touched .tcc-faq-answer {
    display: none;
}

.tcc-faq-item:first-child:not(.tcc-faq-open).tcc-faq-touched .tcc-faq-toggle svg {
    transform: rotate(0deg);
}

.tcc-faq-answer-inner {
    max-width: 840px;
    color: var(--excerpt-color);
    line-height: 1.7;
    font-size: 0.95rem;
}

.tcc-faq-answer-inner p {
    margin: 0;
}

/* ═══════════════════════════════════
   Toast
   ═══════════════════════════════════ */

.tcc-toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 100000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.tcc-toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    background: var(--dark-accent, #191c20);
    border-radius: var(--tcc-radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    pointer-events: auto;
    animation: tccToastIn 0.3s ease;
}

.tcc-toast.tcc-toast-out {
    animation: tccToastOut 0.25s ease forwards;
}

@keyframes tccToastIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes tccToastOut {
    to {
        opacity: 0;
        transform: translateY(10px);
    }
}

/* ═══════════════════════════════════
   Responsive
   ═══════════════════════════════════ */

@media (max-width: 1024px) {
    .tcc-page {
        padding-top: 28px;
    }

    .tcc-layout {
        flex-direction: column;
    }

    .tcc-layout-right {
        width: 100%;
    }

    .tcc-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
    }

    .tcc-stat {
        flex: 1;
        min-width: 120px;
    }

    .tcc-textarea {
        min-height: 200px;
    }
}

@media (max-width: 767px) {
    .tcc-page {
        padding: 18px 0 56px;
    }

    .tcc-hero {
        padding: 24px 0 20px;
    }

    .tcc-card {
        padding: 20px 16px;
    }

    .tcc-textarea {
        min-height: 150px;
    }

    .tcc-stat {
        min-width: 0;
    }

    .tcc-convert-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .tcc-convert-btn {
        padding: 10px 8px;
        font-size: 0.78rem;
    }

    .tcc-seo-content {
        margin-top: 42px;
    }

    .tcc-faq {
        margin-top: 42px;
    }

    .tcc-faq-question {
        gap: 14px;
    }

    .tcc-toast-container {
        bottom: 12px;
        right: 12px;
        left: 12px;
    }
}