/* Professional minimal styling for the converter */
.ptw-card{
    border: 1px solid #e6e9ee;
    border-radius: 12px;
    padding: 18px;
    max-width: 560px;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    background: #fff;
    box-shadow: 0 6px 22px rgba(18,24,40,0.04);
}

.ptw-title{
    margin: 0 0 6px 0;
    font-size: 18px;
    color: #111827;
}

.ptw-instructions{ font-size: 13px; color:#6b7280; margin-bottom:12px; }

.ptw-dropzone{
    border: 2px dashed #d1d5db;
    border-radius: 10px;
    padding: 22px;
    text-align: center;
    cursor: pointer;
    position: relative;
    transition: border-color .18s ease, background .18s ease;
    background: linear-gradient(180deg, rgba(255,255,255,0.6), rgba(250,250,250,0.6));
}

.ptw-dropzone input[type="file"]{
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.ptw-dropzone.ptw-dragover,
.ptw-dropzone:hover{
    border-color: #60a5fa;
    background: rgba(96,165,250,0.03);
}

.ptw-drop-text{ font-size: 14px; color: #374151; }

.ptw-controls{ margin-top: 12px; display:flex; gap:8px; }
.ptw-btn{
    padding: 8px 12px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    background: #0ea5a3;
    color: #fff;
    font-weight: 600;
}
.ptw-btn:disabled{ opacity: .6; cursor: default; }
.ptw-btn--ghost{
    background: transparent;
    border: 1px solid #d1d5db;
    color: #111827;
}

.ptw-progress{ margin-top: 12px; height: 10px; background: #f3f4f6; border-radius: 999px; overflow:hidden; }
.ptw-progress-bar{ height: 100%; width: 0%; transition: width .2s ease; background: linear-gradient(90deg,#34d399,#06b6d4); }

.ptw-message{ margin-top: 12px; font-size: 14px; display:none; white-space:pre-wrap; }
.ptw-message.ok{ color: #065f46; }
.ptw-message.error{ color: #991b1b; }
.ptw-message.info{ color: #0f172a; }

.ptw-result{ margin-top: 14px; }
.ptw-download{
    display:inline-block;
    text-decoration:none;
    padding:8px 12px;
    border-radius:8px;
    background:#2563eb;
    color:#fff;
    font-weight:600;
}