: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: 20px;
}

.input-row {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.input-group {
    flex: 1;
    margin-bottom: 0;
}

/* Standalone .input-group (not inside .input-row) gets bottom spacing */
.form-content > .input-group,
.form-content > div > .input-group:last-child,
.input-group + .input-group {
    margin-bottom: 20px;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
    color: #555;
}

input[type="text"],
input[type="email"],
select {
    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: justify;
    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;
}

@media (min-width: 601px) {
    .container {
        max-width: 1200px;
    }
    .form-content {
        padding: 32px 40px;
    }
}

@media (max-width: 600px) {
    body {
        padding: 0;
        align-items: flex-start;
    }
    .container {
        border-radius: 0;
        border-top: none;
        box-shadow: none;
        min-height: 100vh;
    }
    .form-content {
        padding: 16px;
    }
    .input-row {
        flex-direction: column;
        gap: 16px;
        margin-bottom: 16px;
    }
    .input-row .input-group {
        margin-bottom: 0;
    }
    .header {
        padding: 20px 16px;
    }
    .header h1 {
        font-size: 18px;
    }
}