/* =============================================
   Universal Converter v2 — Multi-file batch
   ============================================= */

/* ── Layout ── */
.tool-page__content { display: grid; grid-template-columns: 1fr 380px; gap: var(--space-6); align-items: start; }
.tool-right-col { display: flex; flex-direction: column; gap: var(--space-5); position: sticky; top: var(--space-4); }

/* ── Ads ── */
.tc-ad { border-radius: var(--radius-lg); overflow: hidden; }
.tc-ad__inner { display: flex; align-items: center; justify-content: center; background: var(--bg-tertiary); border: 1px dashed var(--gray-300); border-radius: var(--radius-lg); }
.tc-ad__label { font-size: 11px; font-weight: 500; color: var(--text-tertiary); letter-spacing: 0.3px; }
.tc-ad--horizontal .tc-ad__inner { min-height: 100px; padding: 12px; }
.tc-ad--full .tc-ad__inner { min-height: 120px; }
.tc-ad--sidebar .tc-ad__inner { min-height: 280px; flex-direction: column; gap: 8px; padding: 16px; }
.tc-ad__inner:has(ins.adsbygoogle) { border: none; background: transparent; }
.tc-ad__inner:has(ins.adsbygoogle) .tc-ad__label { display: none; }
.tc-result__ad { margin: var(--space-4) 0; min-height: 100px; max-height: 280px; overflow: hidden; border-radius: var(--radius-lg); }

/* ── File List (upload area) ── */
.uc-file-list {
    padding: var(--space-3);
    max-height: 400px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.uc-file-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: 13px;
    transition: background 0.15s;
}
.uc-file-item:hover {
    background: var(--gray-100);
}
.uc-file-item__icon {
    font-size: 18px;
    flex-shrink: 0;
}
.uc-file-item__name {
    flex: 1;
    font-weight: 500;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.uc-file-item__size {
    font-size: 11px;
    color: var(--text-tertiary);
    flex-shrink: 0;
}
.uc-file-item__format {
    font-size: 10px;
    font-weight: 700;
    color: var(--primary-700);
    background: var(--primary-100);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    flex-shrink: 0;
}
.uc-file-item__remove {
    border: none;
    background: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: 16px;
    padding: 0 4px;
    line-height: 1;
    transition: color 0.15s;
}
.uc-file-item__remove:hover {
    color: var(--error, #ef4444);
}

/* ── File Count Badge ── */
.uc-file-count {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--gray-100);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}
.uc-file-count__add {
    border: none;
    background: var(--primary-100);
    color: var(--primary-700);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s;
}
.uc-file-count__add:hover {
    background: var(--primary-200);
}

/* ── Processing Overlay ── */
.uc-overlay {
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.8); backdrop-filter: blur(4px);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    border-radius: var(--radius-lg); z-index: 10; gap: 12px;
}
.uc-overlay.hidden { display: none; }
.uc-overlay__text { color: #fff; font-size: var(--text-sm); font-weight: 500; }
.uc-overlay__count { color: rgba(255,255,255,0.7); font-size: 12px; }
.uc-spinner { width: 44px; height: 44px; border: 4px solid rgba(255,255,255,0.25); border-top-color: #fff; border-radius: 50%; animation: uc-spin 0.8s linear infinite; }
@keyframes uc-spin { to { transform: rotate(360deg); } }

/* Progress bar */
.uc-progress-bar {
    width: 200px;
    height: 6px;
    background: rgba(255,255,255,0.2);
    border-radius: 3px;
    overflow: hidden;
}
.uc-progress-bar__fill {
    height: 100%;
    width: 0%;
    background: #fff;
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* ── Result File List (download page) ── */
.uc-result-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: var(--space-4);
    max-height: 300px;
    overflow-y: auto;
}
.uc-result-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-100);
    cursor: pointer;
    transition: all 0.15s;
}
.uc-result-item:hover {
    border-color: var(--primary-300);
    background: var(--primary-50);
}
.uc-result-item__icon { font-size: 20px; flex-shrink: 0; }
.uc-result-item__name { flex: 1; font-size: 13px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.uc-result-item__size { font-size: 11px; color: var(--text-tertiary); flex-shrink: 0; }
.uc-result-item__dl {
    font-size: 11px; font-weight: 600; color: var(--primary-700);
    background: var(--primary-100); padding: 3px 8px; border-radius: var(--radius-sm);
}

/* ── Usage Note ── */
.uc-usage {
    margin-top: var(--space-3); padding: 8px 12px;
    background: var(--primary-50); border: 1px solid var(--primary-200); border-radius: var(--radius-md);
    font-size: 11px; color: var(--primary-700); font-weight: 500; text-align: center;
}

/* ── Format Grid ── */
.uc-formats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }

/* ── Shared styles (breadcrumb, header, sizes, etc.) ── */
.tc-breadcrumb { font-size: var(--text-xs); color: var(--text-tertiary); margin-bottom: var(--space-4); }
.tc-breadcrumb a { color: var(--text-tertiary); text-decoration: none; }
.tc-breadcrumb a:hover { color: var(--primary-600); }
.tc-breadcrumb span { margin: 0 var(--space-1); }
.tc-breadcrumb span:last-child { color: var(--text-primary); font-weight: 500; }

.tc-header { display: flex; align-items: flex-start; gap: var(--space-4); margin-bottom: var(--space-6); }
.tc-header__icon { font-size: 36px; flex-shrink: 0; margin-top: 2px; }
.tc-header__title { font-size: var(--text-2xl); font-weight: 700; margin: 0 0 var(--space-1); }
.tc-header__desc { font-size: var(--text-sm); color: var(--text-secondary); margin: 0; line-height: 1.5; }

.tc-sizes { display: flex; align-items: center; gap: var(--space-3); }
.tc-sizes__box { flex: 1; text-align: center; padding: var(--space-3); background: var(--bg-tertiary); border-radius: var(--radius-lg); border: 1px solid var(--gray-100); }
.tc-sizes__box--output { background: var(--primary-50); border-color: var(--primary-200); }
.tc-sizes__label { font-size: 10px; font-weight: 700; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.tc-sizes__value { font-size: var(--text-lg); font-weight: 700; color: var(--text-primary); }
.tc-sizes__box--output .tc-sizes__value { color: var(--primary-700); }
.tc-sizes__arrow { font-size: var(--text-xl); color: var(--text-tertiary); flex-shrink: 0; }

.tc-fmt { padding: 9px 6px; font-size: 12px; font-weight: 600; text-align: center; background: var(--bg-tertiary); border: 2px solid transparent; border-radius: var(--radius-md); cursor: pointer; transition: all 0.15s; color: var(--text-secondary); }
.tc-fmt:hover { background: var(--gray-100); color: var(--text-primary); }
.tc-fmt.active { background: var(--primary-100); border-color: var(--primary-500); color: var(--primary-700); }

.tc-target { display: flex; gap: 8px; }
.tc-target__field { flex: 1; display: flex; border: 1.5px solid var(--gray-200); border-radius: var(--radius-md); overflow: hidden; transition: border-color 0.2s; }
.tc-target__field:focus-within { border-color: var(--primary-400); box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1); }
.tc-target__input { flex: 1; border: none; padding: 10px 12px; font-size: 14px; font-weight: 600; text-align: center; background: var(--bg-primary); color: var(--text-primary); outline: none; min-width: 0; }
.tc-target__input::placeholder { font-weight: 400; color: var(--text-tertiary); }
.tc-target__unit { padding: 10px 14px; font-size: 12px; font-weight: 700; border: none; border-left: 1.5px solid var(--gray-200); background: var(--bg-tertiary); color: var(--text-secondary); cursor: pointer; transition: all 0.15s; }
.tc-target__unit.active { background: var(--primary-100); color: var(--primary-700); }
.tc-hint { font-size: 11px; color: var(--text-tertiary); margin-top: 6px; }

.tc-actions { padding: 12px; display: flex; gap: 8px; background: var(--bg-secondary); border-top: 1px solid var(--gray-100); }
.tc-actions .btn { flex: 1; font-size: 12px; }
.tc-note { margin-top: var(--space-4); padding: 10px 14px; background: var(--bg-tertiary); border-radius: var(--radius-md); font-size: 12px; color: var(--text-tertiary); line-height: 1.5; }

.tc-result { max-width: 480px; margin: 0 auto; padding: var(--space-6); }
.tc-result__header { text-align: center; margin-bottom: var(--space-6); }
.tc-result__icon { font-size: 52px; margin-bottom: var(--space-2); }
.tc-result__title { font-size: var(--text-xl); font-weight: 700; color: var(--success); margin: 0 0 var(--space-2); }
.tc-result__meta { font-size: var(--text-sm); color: var(--text-secondary); margin: 0; }
.tc-result__file { display: flex; align-items: center; gap: 12px; padding: var(--space-4); background: var(--bg-tertiary); border-radius: var(--radius-lg); margin-bottom: var(--space-4); border: 1px solid var(--gray-100); }
.tc-result__file-icon { font-size: 32px; flex-shrink: 0; }
.tc-result__filename { font-weight: 600; font-size: 14px; word-break: break-all; }
.tc-result__filesize { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.tc-result__rename { margin-bottom: var(--space-4); }
.tc-result__rename label { font-size: 12px; font-weight: 600; color: var(--text-secondary); display: block; margin-bottom: 6px; }
.tc-result__rename input { width: 100%; padding: 10px 12px; border: 1.5px solid var(--gray-200); border-radius: var(--radius-md); font-size: 14px; background: var(--bg-primary); box-sizing: border-box; transition: border-color 0.2s; }
.tc-result__rename input:focus { outline: none; border-color: var(--primary-400); box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1); }
.tc-result__actions { display: flex; gap: 10px; margin-bottom: var(--space-4); }
.tc-result__actions .btn { flex: 1; text-align: center; }

.tc-related { padding-top: var(--space-4); border-top: 1px solid var(--gray-100); }
.tc-related__title { font-size: 11px; font-weight: 700; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: var(--space-3); }
.tc-related__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tc-related__grid a { display: block; padding: 10px; background: var(--bg-tertiary); border-radius: var(--radius-md); font-size: 13px; font-weight: 500; color: var(--text-secondary); text-decoration: none; text-align: center; transition: all 0.15s; border: 1px solid transparent; }
.tc-related__grid a:hover { background: var(--primary-50); color: var(--primary-700); border-color: var(--primary-200); }

.tc-faq { display: flex; flex-direction: column; gap: var(--space-3); }
.tc-faq details { background: var(--bg-secondary); border-radius: var(--radius-lg); border: 1px solid var(--gray-100); padding: var(--space-4); transition: border-color 0.2s; }
.tc-faq details[open] { border-color: var(--primary-200); }
.tc-faq summary { font-weight: 500; cursor: pointer; font-size: var(--text-sm); }
.tc-faq p { margin-top: var(--space-3); font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.6; }

@media (max-width: 768px) {
    .tool-page__content { grid-template-columns: 1fr; }
    .tool-right-col { position: static; }
    .tc-header { gap: var(--space-3); }
    .tc-header__icon { font-size: 28px; }
    .tc-header__title { font-size: var(--text-xl); }
    .uc-formats { grid-template-columns: repeat(3, 1fr); }
    .tc-result { padding: var(--space-4); }
    .tc-related__grid { grid-template-columns: 1fr; }
    .tc-ad--sidebar .tc-ad__inner { min-height: 100px; }
    .tc-ad--horizontal .tc-ad__inner { min-height: 80px; }
}