:root {
    --vos-blue: #1e3799;
    --vos-blue-hover: #152b7a;
    --vos-light-gray: #f8f9fa;
    --vos-border: #e1e8ef;
    --text-dark: #2d3436;
}
body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: #f4f7f9;
    color: var(--text-dark);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}
.container {
    background: white;
    max-width: 580px;
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    overflow: hidden;
    border-top: 6px solid var(--vos-blue);
}
.header {
    background: var(--vos-light-gray);
    padding: 30px;
    text-align: center;
    border-bottom: 1px solid var(--vos-border);
}
.header h1 {
    color: var(--vos-blue);
    margin: 0;
    font-size: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.form-content { padding: 35px; }
.input-row { display: flex; gap: 20px; margin-bottom: 20px; }
.input-group { flex: 1; }
label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 14px; color: #555; }
input[type="text"], input[type="email"] {
    width: 100%; padding: 12px; border: 1px solid var(--vos-border); border-radius: 6px; box-sizing: border-box; font-size: 16px;
}
.upload-zone {
    border: 2px dashed var(--vos-border); border-radius: 8px; padding: 20px; text-align: center; margin-bottom: 20px; cursor: pointer; position: relative;
}
.upload-zone:hover { background-color: #f1f4ff; border-color: var(--vos-blue); }
.upload-zone i { font-size: 32px; color: var(--vos-blue); margin-bottom: 10px; display: block; }
.upload-zone input[type="file"] { position: absolute; width: 100%; height: 100%; top: 0; left: 0; opacity: 0; cursor: pointer; }
.status-msg { font-size: 12px; font-weight: bold; color: #27ae60; display: none; margin-top: 8px; }
.btn-submit {
    background-color: var(--vos-blue); color: white; border: none; padding: 16px; width: 100%; border-radius: 6px; font-size: 16px; font-weight: bold; cursor: pointer; display: flex; justify-content: center; align-items: center; gap: 10px;
}
.btn-submit:disabled {
    background-color: #b0bec5; cursor: not-allowed; opacity: 0.7;
}
.footer-info { font-size: 12px; color: #999; text-align: center; margin-top: 20px; }
.error-msg { font-size: 12px; font-weight: bold; color: #e74c3c; display: none; margin-top: 8px; }
.upload-zone.error { border-color: #e74c3c; background-color: #fff5f5; }
.upload-zone.error i { color: #e74c3c; }
.loading-msg { font-size: 12px; color: #888; display: none; margin-top: 8px; }
.upload-zone.detecting { border-color: #f39c12; background-color: #fffbf0; }